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Providing a complete portal to the world of case study research, the Fourth Edition of Robert K. Yin’s bestselling text Case Study Research offers comprehensive coverage of the design and use of the case study method as a valid research tool. This thoroughly revised text now covers more than 50 case studies (approximately 25% new), gives fresh attention to quantitative analyses, discusses more fully the use of mixed methods research designs, and includes new methodological insights. The book’s coverage of case study research and how it is applied in practice gives readers access to exemplary case studies drawn from a wide variety of academic and applied fields. Key Features of the Fourth EditionHighlights each specific research feature through 44 boxed vignettes that feature previously published case studies Provides methodological insights to show the similarities between case studies and other social science methodsSuggests a three-stage approach to help readers define the initial questions they will consider in their own case study researchCovers new material on human subjects protection, the role of Institutional Review Boards, and the interplay between obtaining IRB approval and the final development of the case study protocol and conduct of a pilot caseIncludes an overall graphic of the entire case study research process at the beginning of the book, then highlights the steps in the process through graphics that appear at the outset of all the chapters that follow Offers in-text learning aids including “tips” that pose key questions and answers at the beginning of each chapter, practical exercises, endnotes, and a new cross-referencing table Case Study Research, Fourth Edition is ideal for courses in departments of Education, Business and Management, Nursing and Public Health, Public Administration, Anthropology, Sociology, and Political Science.

It's time to elevate your cinematography with the 105mm T1.5 Fully Luminous High-Speed Prime Cine Lens for Sony E, Feet. This compact, high-end prime lens offers full-frame coverage, designed specifically for 6K-8K shooting. Its superior image quality and compact construction rival those of other high-end prime lenses, enabling you to film various cuts without altering the lighting.Every lens undergoes a rigorous inspection process to ensure compliance with all specifications. Leveraging Sigma's A1 proprietary Modulation Transfer Function (MTF) measuring system, each lens is scrutinized using 46-megapixel Foveon direct image sensors. This meticulous process ensures even high-frequency details, previously undetectable, are within the scope of our quality control inspections.The lens design minimizes flare and ghosting, enhancing contrast in backlit conditions. This is achieved through computer-based ray tracing from the design stage and rigorous ghosting checks at every prototype stage. The result is a lens that delivers sharpness combined with an outstanding bokeh effect.The 105mm T1.5 lens is part of a lineup designed to comply with Sigma's CCI standard, ensuring standardized color balance for easy color correction. The optical system delivers 50-megapixel or higher resolution, making these lenses ideal for high-resolution shooting and chroma keying.Despite its high performance, this lens remains lightweight and compact, thanks to Sigma's high-precision, high-efficiency mass production technologies. The lens features a 100% metal body for durability and a dust-proof and splash-proof construction, making it ready for use in tough conditions.The lens specifications include luminous paint for enhanced visibility in the dark, laser engraving for long-term use, and a 95mm front diameter compatible with matte boxes. The lens also features standardized gear positions, silent ring stoppers, and a 180-degree focus rotational angle for high-precision focusing.The Sony E-mount lens communicates important information to the camera body, such as focal length, shooting distance, and aperture, through electronic contacts. The lens comes with a dedicated lens support foot to minimize load on the camera body and enhance mount stability. The package also includes a cine-style front lens cap. Experience the combination of performance and compact design at its finest with the 105mm T1.5 Fully Luminous High-Speed Prime Cine Lens for Sony E, Feet.

The image quality of a high-end prime lens Full-frame compatibility-yet compact Rivaling a high-end prime lenses with their stunning image quality and compact construction, they also offer full-frame coverage. It is designed for 6K-8K shooting, the FF High Speed Prime Line allows filming of various cuts without making any changes to the lighting, taking cinematography to the next level of performance. Image Quality Inspecting each and every lens There are three requirements for outstanding lenses: fine design, precise manufacturing and inspection that ensures compliance with all specifications. Sigma lenses are born of outstanding design concepts and excellent manufacturing technology, but they are not complete until they undergo their uncompromising lens performance evaluation. Sigma has developed their own A1 proprietary Modulation Transfer Function (MTF) measuring system using 46-megapixel Foveon direct image sensors. Even previously undetectable high-frequency details are now within the scope of their quality control inspections. Each and every lens is checked before shipping. Thanks to the ultra-high resolution sensors, high- performance shooting is assured. Minimization of flare and ghosting Computer-based ray tracing has been used from the design stage onward to minimize flare and ghosting and enhance contrast in backlit conditions. Ghosting has also been checked at every prototype stage, with its causes identified, assessed and eliminated. Sharpness combined with outstanding bokeh effect To fulfill the high demands for image quality in still photography, Sigma has solved a wide range of issues. The benefit of these efforts can now be enjoyed in cine lenses as well. Color balance standardized across the lineup All of the lenses in the lineup are designed to comply with Sigma's CCI standard. Standardized color balance makes color correction a snap. 6K-8K class resolution The lineup features the same optical system that delivers 50-megapixel or higher resolution in still photography. Therefore, these lenses are ready for higher resolution shooting and are ideal for chroma keying as well. Build Quality Lightweight and compact Leveraging the high-precision, high-efficiency mass production technologies developed for its still camera lenses, Sigma has made extremely lightweight and compact cine lenses a reality. Featuring all functions essential to cinematography, these lenses keep weight and size to a minimum, while their specification is optimized for enhanced durability. The end result is a combination of performance and compact design at the highest level. Dust-proof and splash-proof construction The lineup features the same dust-proof and splash-proof construction as the Sigma 150-600mm F5-6.3 DG OS HSM/Sports. With each ring and mount specially sealed to prevent water and dust from entering, this lens is ready for use in tough conditions. The unusually robust...

The image quality of a high-end prime lens Full-frame compatibility-yet compact Rivaling a high-end prime lenses with their stunning image quality and compact construction, they also offer full-frame coverage. It is designed for 6K-8K shooting, the FF High Speed Prime Line allows filming of various cuts without making any changes to the lighting, taking cinematography to the next level of performance. Image Quality Inspecting each and every lens There are three requirements for outstanding lenses: fine design, precise manufacturing and inspection that ensures compliance with all specifications. Sigma lenses are born of outstanding design concepts and excellent manufacturing technology, but they are not complete until they undergo their uncompromising lens performance evaluation. Sigma has developed their own A1 proprietary Modulation Transfer Function (MTF) measuring system using 46-megapixel Foveon direct image sensors. Even previously undetectable high-frequency details are now within the scope of their quality control inspections. Each and every lens is checked before shipping. Thanks to the ultra-high resolution sensors, high- performance shooting is assured. Minimization of flare and ghosting Computer-based ray tracing has been used from the design stage onward to minimize flare and ghosting and enhance contrast in backlit conditions. Ghosting has also been checked at every prototype stage, with its causes identified, assessed and eliminated. Sharpness combined with outstanding bokeh effect To fulfill the high demands for image quality in still photography, Sigma has solved a wide range of issues. The benefit of these efforts can now be enjoyed in cine lenses as well. Color balance standardized across the lineup All of the lenses in the lineup are designed to comply with Sigma's CCI standard. Standardized color balance makes color correction a snap. 6K-8K class resolution The lineup features the same optical system that delivers 50-megapixel or higher resolution in still photography. Therefore, these lenses are ready for higher resolution shooting and are ideal for chroma keying as well. Build Quality Lightweight and compact Leveraging the high-precision, high-efficiency mass production technologies developed for its still camera lenses, Sigma has made extremely lightweight and compact cine lenses a reality. Featuring all functions essential to cinematography, these lenses keep weight and size to a minimum, while their specification is optimized for enhanced durability. The end result is a combination of performance and compact design at the highest level. Dust-proof and splash-proof construction The lineup features the same dust-proof and splash-proof construction as the Sigma 150-600mm F5-6.3 DG OS HSM/Sports. With each ring and mount specially sealed to prevent water and dust from entering, this lens is ready for use in tough conditions. The unusually robust...

It is the 14mm T2.0 Fully Luminous High-Speed Prime Cine Lens for PL Mount, Feet, a remarkable piece of cinematography equipment that offers superior image quality akin to high-end prime lenses. Compact yet fully compatible with full-frame coverage, this lens is specifically designed for 6K-8K filming, enabling diverse cuts without altering the lighting, thus elevating cinematography to unprecedented heights.Every lens undergoes a rigorous inspection process to ensure compliance with all specifications. Born from exceptional design concepts and superior manufacturing technology, Sigma lenses are not considered complete until they pass an uncompromising lens performance evaluation. Sigma utilizes its proprietary A1 Modulation Transfer Function (MTF) measuring system, equipped with 46-megapixel Foveon direct image sensors, to capture even the most minute high-frequency details.The lens design incorporates computer-based ray tracing from the initial stage to minimize flare and ghosting, thereby enhancing contrast in backlit conditions. Every prototype stage is meticulously checked for ghosting, with causes identified and eliminated, ensuring sharp images with outstanding bokeh effects.Sigma has standardized color balance across the lineup, complying with Sigma's CCI standard, making color correction effortless. The lens is equipped for 6K-8K class resolution, making it ideal for chroma keying and higher resolution shooting.The lens boasts a lightweight and compact build, achieved through Sigma's high-precision, high-efficiency mass production technologies. It features all the essential functions for cinematography, with specifications optimized for enhanced durability. The lens is dust-proof and splash-proof, with each ring and mount specially sealed for use in challenging conditions.The lens body is 100% metal, designed for long-term professional use. It features luminous paint for enhanced visibility in the dark, and laser engraving for durability. The front diameter is 95mm, compatible with matte boxes, and the lens features standardized gear positions and a 0.8M gear pitch, ensuring compatibility with existing accessories.The lens offers a 180-degree focus rotational angle for high-precision focusing and a manual control iris ring for smooth, click-free control. The mount with electronic contacts allows the lens to communicate vital information to the camera body, such as focal length, shooting distance, and aperture.The lens comes with a dedicated lens support foot as a standard accessory, minimizing load on the camera body while enhancing mount stability. The lens also includes a cine-style front lens cap. This 14mm T2.0 Fully Luminous High-Speed Prime Cine Lens for PL Mount, Feet, is a perfect blend of performance and compact design, ready to take your cinematography to the next level.

An exceptional blend of high-end performance and compact design, the FF Fully Luminous High-Speed Prime Cine 5-Lens Kit is a comprehensive solution for professional cinematographers and photographers. This kit, compatible with Canon EF mount, includes five prime lenses: 20mm, 24mm, 35mm, 50mm, and 85mm, each with a T1.5 aperture. Designed for 6K-8K shooting, these lenses provide full-frame coverage, enabling various cuts without altering the lighting. This feature propels cinematography to new heights of performance. Each lens in this kit undergoes a rigorous inspection process to ensure compliance with all specifications, guaranteeing superior image quality. Sigma's proprietary A1 Modulation Transfer Function (MTF) measuring system, using 46-megapixel Foveon direct image sensors, ensures even high-frequency details are within the scope of quality control inspections. This meticulous process ensures each lens delivers ultra-high resolution, enhancing your shooting performance.The design of these lenses minimizes flare and ghosting, enhancing contrast in backlit conditions. This is achieved through computer-based ray tracing from the design stage and rigorous checking at every prototype stage. The result is sharpness combined with an outstanding bokeh effect, meeting the high demands for image quality in both still photography and cinematography.The color balance across the lineup is standardized according to Sigma's CCI standard, simplifying color correction. These lenses are ready for higher resolution shooting, making them ideal for chroma keying. Despite their high performance, these lenses are lightweight and compact, thanks to Sigma's high-precision, high-efficiency mass production technologies. Each lens features a 100% metal body for durability and a dust-proof and splash-proof construction, allowing you to focus on shooting in tough conditions without worrying about maintenance. The lenses are adorned with luminous paint for enhanced visibility in the dark, and information on the rings is laser-engraved for long-term use. The filter size is standardized at 82mm, allowing the use of the same size ND filter on different lenses. The front diameter is 95mm, compatible with matte boxes, and the gear positions in each ring are standardized for ease of use. The Canon EF mount, used on the majority of digital cinema cameras, allows these lenses to communicate important information to the camera body. The kit also includes a dedicated lens support foot and a cine-style front lens cap. In summary, the FF Fully Luminous High-Speed Prime Cine 5-Lens Kit offers a combination of performance, durability, and compact design, making it an ideal choice for professional cinematographers and photographers.

Why settle for less when you can have the best with the FF Fully Luminous High-Speed Prime Cine 7-Lens Kit? This kit is a cinematographer's dream, offering a comprehensive range of lenses including 20mm, 24mm, 35mm, 50mm, 85mm T1.5, 14mm, and 135mm T2.0. Designed specifically for Canon EF, these lenses provide full-frame coverage, ensuring stunning image quality that rivals high-end prime lenses.Each lens in this kit is meticulously designed and manufactured, undergoing rigorous inspection to ensure compliance with all specifications. The lenses are tested using Sigma's proprietary A1 Modulation Transfer Function (MTF) measuring system, which uses 46-megapixel Foveon direct image sensors. This ensures that even the most minute high-frequency details are captured, guaranteeing ultra-high resolution and high-performance shooting.Flare and ghosting are minimized through computer-based ray tracing from the design stage onward, enhancing contrast in backlit conditions. The lenses also deliver sharpness combined with an outstanding bokeh effect, meeting the high demands for image quality in both still photography and cinematography.The color balance across the lineup is standardized according to Sigma's CCI standard, simplifying color correction. The lenses are also capable of 6K-8K class resolution, making them ideal for chroma keying and higher resolution shooting.Despite their high performance, these lenses are lightweight and compact, thanks to Sigma's high-precision, high-efficiency mass production technologies. They are built to last, with a 100% metal body and dust-proof and splash-proof construction. The lenses also feature luminous paint for enhanced visibility in the dark, and laser engraving for long-term durability.The kit also includes two cases and a dedicated lens support foot, minimizing load on the camera body and enhancing mount stability. The Canon EF mount allows the lens to communicate important information to the body, such as focal length, shooting distance, and aperture.In summary, the FF Fully Luminous High-Speed Prime Cine 7-Lens Kit offers a combination of performance, compact design, and durability that is unmatched in the industry. Whether you're a professional cinematographer or a passionate hobbyist, this lens kit is a valuable addition to your gear.

The image quality of a high-end prime lens Full-frame compatibility-yet compact Rivaling a high-end prime lenses with their stunning image quality and compact construction, they also offer full-frame coverage. It is designed for 6K-8K shooting, the FF High Speed Prime Line allows filming of various cuts without making any changes to the lighting, taking cinematography to the next level of performance. Image Quality Inspecting each and every lens There are three requirements for outstanding lenses: fine design, precise manufacturing and inspection that ensures compliance with all specifications. Sigma lenses are born of outstanding design concepts and excellent manufacturing technology, but they are not complete until they undergo their uncompromising lens performance evaluation. Sigma has developed their own A1 proprietary Modulation Transfer Function (MTF) measuring system using 46-megapixel Foveon direct image sensors. Even previously undetectable high-frequency details are now within the scope of their quality control inspections. Each and every lens is checked before shipping. Thanks to the ultra-high resolution sensors, high- performance shooting is assured. Minimization of flare and ghosting Computer-based ray tracing has been used from the design stage onward to minimize flare and ghosting and enhance contrast in backlit conditions. Ghosting has also been checked at every prototype stage, with its causes identified, assessed and eliminated. Sharpness combined with outstanding bokeh effect To fulfill the high demands for image quality in still photography, Sigma has solved a wide range of issues. The benefit of these efforts can now be enjoyed in cine lenses as well. Color balance standardized across the lineup All of the lenses in the lineup are designed to comply with Sigma's CCI standard. Standardized color balance makes color correction a snap. 6K-8K class resolution The lineup features the same optical system that delivers 50-megapixel or higher resolution in still photography. Therefore, these lenses are ready for higher resolution shooting and are ideal for chroma keying as well. Build Quality Lightweight and compact Leveraging the high-precision, high-efficiency mass production technologies developed for its still camera lenses, Sigma has made extremely lightweight and compact cine lenses a reality. Featuring all functions essential to cinematography, these lenses keep weight and size to a minimum, while their specification is optimized for enhanced durability. The end result is a combination of performance and compact design at the highest level. Dust-proof and splash-proof construction The lineup features the same dust-proof and splash-proof construction as the Sigma 150-600mm F5-6.3 DG OS HSM/Sports. With each ring and mount specially sealed to prevent water and dust from entering, this lens is ready for use in tough conditions. The unusually robust...

It is the 14mm T2.0 Fully Luminous High-Speed Prime Cine Lens for PL Mount, Feet, a remarkable piece of cinematography equipment that offers superior image quality akin to high-end prime lenses. Compact yet fully compatible with full-frame coverage, this lens is specifically designed for 6K-8K filming, enabling diverse cuts without altering the lighting, thus elevating cinematography to unprecedented heights.Every lens undergoes a rigorous inspection process to ensure compliance with all specifications. Born from exceptional design concepts and superior manufacturing technology, Sigma lenses are not considered complete until they pass an uncompromising lens performance evaluation. Sigma utilizes its proprietary A1 Modulation Transfer Function (MTF) measuring system, equipped with 46-megapixel Foveon direct image sensors, to capture even the most minute high-frequency details.The lens design incorporates computer-based ray tracing from the initial stage to minimize flare and ghosting, thereby enhancing contrast in backlit conditions. Every prototype stage is meticulously checked for ghosting, with causes identified and eliminated, ensuring sharp images with outstanding bokeh effects.Sigma has standardized color balance across the lineup, complying with Sigma's CCI standard, making color correction effortless. The lens is equipped for 6K-8K class resolution, making it ideal for chroma keying and higher resolution shooting.The lens boasts a lightweight and compact build, achieved through Sigma's high-precision, high-efficiency mass production technologies. It features all the essential functions for cinematography, with specifications optimized for enhanced durability. The lens is dust-proof and splash-proof, with each ring and mount specially sealed for use in challenging conditions.The lens body is 100% metal, designed for long-term professional use. It features luminous paint for enhanced visibility in the dark, and laser engraving for durability. The front diameter is 95mm, compatible with matte boxes, and the lens features standardized gear positions and a 0.8M gear pitch, ensuring compatibility with existing accessories.The lens offers a 180-degree focus rotational angle for high-precision focusing and a manual control iris ring for smooth, click-free control. The mount with electronic contacts allows the lens to communicate vital information to the camera body, such as focal length, shooting distance, and aperture.The lens comes with a dedicated lens support foot as a standard accessory, minimizing load on the camera body while enhancing mount stability. The lens also includes a cine-style front lens cap. This 14mm T2.0 Fully Luminous High-Speed Prime Cine Lens for PL Mount, Feet, is a perfect blend of performance and compact design, ready to take your cinematography to the next level.

The image quality of a high-end prime lens Full-frame compatibility-yet compact Rivaling a high-end prime lenses with their stunning image quality and compact construction, they also offer full-frame coverage. It is designed for 6K-8K shooting, the FF High Speed Prime Line allows filming of various cuts without making any changes to the lighting, taking cinematography to the next level of performance. Image Quality Inspecting each and every lens There are three requirements for outstanding lenses: fine design, precise manufacturing and inspection that ensures compliance with all specifications. Sigma lenses are born of outstanding design concepts and excellent manufacturing technology, but they are not complete until they undergo their uncompromising lens performance evaluation. Sigma has developed their own A1 proprietary Modulation Transfer Function (MTF) measuring system using 46-megapixel Foveon direct image sensors. Even previously undetectable high-frequency details are now within the scope of their quality control inspections. Each and every lens is checked before shipping. Thanks to the ultra-high resolution sensors, high- performance shooting is assured. Minimization of flare and ghosting Computer-based ray tracing has been used from the design stage onward to minimize flare and ghosting and enhance contrast in backlit conditions. Ghosting has also been checked at every prototype stage, with its causes identified, assessed and eliminated. Sharpness combined with outstanding bokeh effect To fulfill the high demands for image quality in still photography, Sigma has solved a wide range of issues. The benefit of these efforts can now be enjoyed in cine lenses as well. Color balance standardized across the lineup All of the lenses in the lineup are designed to comply with Sigma's CCI standard. Standardized color balance makes color correction a snap. 6K-8K class resolution The lineup features the same optical system that delivers 50-megapixel or higher resolution in still photography. Therefore, these lenses are ready for higher resolution shooting and are ideal for chroma keying as well. Build Quality Lightweight and compact Leveraging the high-precision, high-efficiency mass production technologies developed for its still camera lenses, Sigma has made extremely lightweight and compact cine lenses a reality. Featuring all functions essential to cinematography, these lenses keep weight and size to a minimum, while their specification is optimized for enhanced durability. The end result is a combination of performance and compact design at the highest level. Dust-proof and splash-proof construction The lineup features the same dust-proof and splash-proof construction as the Sigma 150-600mm F5-6.3 DG OS HSM/Sports. With each ring and mount specially sealed to prevent water and dust from entering, this lens is ready for use in tough conditions. The unusually robust...

Let your creativity soar with the FF Fully Luminous High-Speed Prime Cine 7-Lens Kit, a comprehensive lens kit designed for Sony E and NEX cameras. This versatile set includes seven high-quality lenses with focal lengths of 20mm, 24mm, 35mm, 50mm, 85mm T1.5, 14mm, and 135mm T2.0, offering you the flexibility to capture a wide range of scenes and subjects. Designed for professional photographers and videographers, these lenses deliver stunning image quality, rivaling that of high-end prime lenses. They are compact yet fully compatible with full-frame sensors, making them ideal for 6K-8K shooting. The fast aperture of these lenses allows for low-light photography and the creation of a shallow depth of field, taking your cinematography to the next level.Each lens in this kit is meticulously inspected to ensure compliance with all specifications. Sigma's proprietary A1 Modulation Transfer Function (MTF) measuring system is used to detect even high-frequency details, ensuring high-performance shooting. The lenses also feature computer-based ray tracing from the design stage to minimize flare and ghosting, enhancing contrast in backlit conditions.The FF Fully Luminous High-Speed Prime Cine 7-Lens Kit is not just about performance; it's also about durability. The lenses feature a 100% metal body, dust-proof and splash-proof construction, and laser engraving for long-term use. The luminous paint on the specification, gradation baseline, and lens change indications aid in changing the lens in the dark. The kit also includes two cases and a dedicated lens support foot to minimize load on the camera body while enhancing mount stability. The filter size is standardized at 82mm, allowing users to use the same size of ND filter on different lenses. The front diameter is 95mm, similar to other cine lenses and compatible with matte boxes. In summary, the FF Fully Luminous High-Speed Prime Cine 7-Lens Kit is a high-quality, versatile, and durable choice for professional photographers and videographers. Whether you're shooting in low light conditions, capturing a wide range of scenes, or aiming for a shallow depth of field, this lens kit has got you covered.

What you're looking at is the 135mm T2.0 Fully Luminous High-Speed Prime Cine Lens for PL Mount, a compact yet powerful lens that rivals high-end prime lenses in terms of image quality and construction. Designed for 6K-8K shooting, this lens provides full-frame coverage and allows for various cuts without altering the lighting, elevating your cinematography to new heights.This lens is a product of Sigma's meticulous design concepts and superior manufacturing technology. Each lens undergoes a rigorous inspection process to ensure it meets all specifications. Using Sigma's proprietary A1 Modulation Transfer Function (MTF) measuring system, even high-frequency details that were previously undetectable are now within the scope of their quality control inspections. The lens design minimizes flare and ghosting, enhancing contrast in backlit conditions. This is achieved through computer-based ray tracing from the design stage and rigorous ghosting checks at every prototype stage. The result is a lens that delivers sharpness coupled with an outstanding bokeh effect.The lens is designed to comply with Sigma's CCI standard, ensuring standardized color balance across the lineup. This makes color correction a breeze. With an optical system that delivers 50-megapixel or higher resolution, this lens is ready for high-resolution shooting and is ideal for chroma keying.Despite its high performance, this lens is lightweight and compact, thanks to Sigma's high-precision, high-efficiency mass production technologies. It features a dust-proof and splash-proof construction, making it suitable for use in tough conditions. The 100% metal body is designed for long-term professional use.The lens features luminous paint on the specification, gradation baseline, and lens change indications, aiding in lens changes in the dark. The FULLY LUMINOUS versions of the lenses also have rings with numbers and gradations finished with luminous paint. Information on rings is laser-engraved for long-term use.The lens has a standardized 82mm front filter size and a 95mm front diameter, similar to other cine lenses. The positions of the gears in each ring are standardized, eliminating the need to adjust the follow focus, motor unit, or accessories when the lens changes. The focus ring has a 180-degree rotational angle, allowing for extremely high-precision focusing.The lens features a manual control iris ring that offers smooth control without clicks. The T-stop display contributes to high-precision exposures. The lens also comes with a dedicated lens support foot to minimize load on the camera body while enhancing mount stability. The lens cap is designed in a conventional cine-style for added convenience. In summary, the 135mm T2.0 Fully Luminous High-Speed Prime Cine Lens for PL Mount is a compact, high-performance lens that delivers stunning image quality, making it an excellent choice for professional cinematographers.

The image quality of a high-end prime lens Full-frame compatibility-yet compact Rivaling a high-end prime lenses with their stunning image quality and compact construction, they also offer full-frame coverage. It is designed for 6K-8K shooting, the FF High Speed Prime Line allows filming of various cuts without making any changes to the lighting, taking cinematography to the next level of performance. Image Quality Inspecting each and every lens There are three requirements for outstanding lenses: fine design, precise manufacturing and inspection that ensures compliance with all specifications. Sigma lenses are born of outstanding design concepts and excellent manufacturing technology, but they are not complete until they undergo their uncompromising lens performance evaluation. Sigma has developed their own A1 proprietary Modulation Transfer Function (MTF) measuring system using 46-megapixel Foveon direct image sensors. Even previously undetectable high-frequency details are now within the scope of their quality control inspections. Each and every lens is checked before shipping. Thanks to the ultra-high resolution sensors, high- performance shooting is assured. Minimization of flare and ghosting Computer-based ray tracing has been used from the design stage onward to minimize flare and ghosting and enhance contrast in backlit conditions. Ghosting has also been checked at every prototype stage, with its causes identified, assessed and eliminated. Sharpness combined with outstanding bokeh effect To fulfill the high demands for image quality in still photography, Sigma has solved a wide range of issues. The benefit of these efforts can now be enjoyed in cine lenses as well. Color balance standardized across the lineup All of the lenses in the lineup are designed to comply with Sigma's CCI standard. Standardized color balance makes color correction a snap. 6K-8K class resolution The lineup features the same optical system that delivers 50-megapixel or higher resolution in still photography. Therefore, these lenses are ready for higher resolution shooting and are ideal for chroma keying as well. Build Quality Lightweight and compact Leveraging the high-precision, high-efficiency mass production technologies developed for its still camera lenses, Sigma has made extremely lightweight and compact cine lenses a reality. Featuring all functions essential to cinematography, these lenses keep weight and size to a minimum, while their specification is optimized for enhanced durability. The end result is a combination of performance and compact design at the highest level. Dust-proof and splash-proof construction The lineup features the same dust-proof and splash-proof construction as the Sigma 150-600mm F5-6.3 DG OS HSM/Sports. With each ring and mount specially sealed to prevent water and dust from entering, this lens is ready for use in tough conditions. The unusually robust...

Experience the unparalleled performance of the 20mm T1.5 FF Fully Luminous High-Speed Prime Cine Lens for PL Mount, a compact yet powerful lens designed for professional cinematography. This lens is engineered to deliver stunning image quality, rivaling high-end prime lenses, while providing full-frame coverage. Designed for 6K-8K shooting, this lens takes cinematography to the next level, allowing for filming of various cuts without the need for lighting adjustments. Each lens undergoes rigorous inspection to ensure compliance with all specifications, using Sigma's proprietary A1 Modulation Transfer Function (MTF) measuring system. This system uses 46-megapixel Foveon direct image sensors to detect even the most minute high-frequency details, ensuring high-performance shooting.This lens also minimizes flare and ghosting through computer-based ray tracing from the design stage, enhancing contrast in backlit conditions. It delivers sharpness combined with an outstanding bokeh effect, meeting the high demands for image quality in both still photography and cinematography. The lens features 6K-8K class resolution, making it ideal for high-resolution shooting and chroma keying. It also complies with Sigma's CCI standard, ensuring standardized color balance across the lineup for easy color correction.Built to last, the lens boasts a 100% metal body, dust-proof and splash-proof construction, and laser engraving for enhanced durability. It features luminous paint for enhanced visibility in low light conditions, and a front diameter of 95mm, compatible with matte boxes. The lens also offers standardized gear positions, a silent ring stopper, and a 180-degree focus rotational angle for high-precision focusing. The iris ring offers smooth, manual control without clicks, and the T-stop display contributes to high-precision exposures. The mount with electronic contacts allows the lens to communicate important information to the camera body, and the lens comes with a dedicated lens support foot to minimize load on the camera body while enhancing mount stability. Experience the combination of performance and compact design at its finest with the 20mm T1.5 FF Fully Luminous High-Speed Prime Cine Lens for PL Mount.

Be captivated by the unparalleled image quality and versatility of the FF Fully Luminous High-Speed Prime Cine 7-Lens Kit, designed for Sony E-mount systems. This comprehensive collection includes focal lengths of 20mm, 24mm, 35mm, 50mm, 85mm T1.5, 14mm, and 135mm T2.0, each crafted to deliver stunning visuals with full-frame coverage, making them perfect for professional cinematography and high-resolution 6K-8K video production.The Sigma FF High Speed Prime Line is engineered to maintain consistent lighting across various shots, elevating your filmmaking with seamless performance. Each lens undergoes rigorous quality control, utilizing Sigma's exclusive A1 MTF system with 46-megapixel Foveon sensors to capture even the most subtle details, ensuring every lens meets the highest standards before it reaches your hands.Flare and ghosting are minimized through advanced computer-based ray tracing from the initial design phase, enhancing contrast and image clarity, especially in backlit conditions. The lenses' sharpness and exquisite bokeh effect are the result of Sigma's relentless pursuit of perfection in image quality, which is now available to cine enthusiasts.Color balance is standardized across the lineup, adhering to Sigma's CCI standard, simplifying color correction and ensuring a consistent look across all your footage. The optical system, capable of resolving 50-megapixel or higher in still photography, is ready to meet the demands of higher resolution filming and chroma keying applications.The build quality of these lenses is exceptional, with a lightweight and compact design that doesn't compromise on durability. The dust-proof and splash-proof construction, akin to the Sigma 150-600mm F5-6.3 DG OS HSM/Sports, ensures reliability in challenging environments. The 100% metal body is built for the rigors of professional use.Visibility in low light is enhanced with luminous paint on the specification, gradation baseline, and lens change indications, with the FULLY LUMINOUS versions featuring additional luminous paint on the rings. Laser engraving on the rings ensures long-term durability, and the 82mm front filter size (for select lenses) and 95mm front diameter are compatible with standard ND filters and matte boxes, respectively.The standardized gear positions and 0.8M gear pitch on each ring facilitate seamless integration with follow focus systems and accessories. Silent ring stoppers with special resin dampers enable quiet operation, crucial for sound-sensitive environments. The focus ring's 180-degree rotational angle allows for precise focusing, complemented by an optimized cam for ease of use.Manual control of the iris is smooth and click-free, with a T-stop display for accurate exposure settings and a linear iris ring for intuitive control. The Sony E-mount is equipped with electronic contacts for lens-to-camera communication, enhancing functionality.Included with each lens is a dedicated lens support foot to reduce strain on the...

The image quality of a high-end prime lens Full-frame compatibility-yet compact Rivaling a high-end prime lenses with their stunning image quality and compact construction, they also offer full-frame coverage. It is designed for 6K-8K shooting, the FF High Speed Prime Line allows filming of various cuts without making any changes to the lighting, taking cinematography to the next level of performance. Image Quality Inspecting each and every lens There are three requirements for outstanding lenses: fine design, precise manufacturing and inspection that ensures compliance with all specifications. Sigma lenses are born of outstanding design concepts and excellent manufacturing technology, but they are not complete until they undergo their uncompromising lens performance evaluation. Sigma has developed their own A1 proprietary Modulation Transfer Function (MTF) measuring system using 46-megapixel Foveon direct image sensors. Even previously undetectable high-frequency details are now within the scope of their quality control inspections. Each and every lens is checked before shipping. Thanks to the ultra-high resolution sensors, high- performance shooting is assured. Minimization of flare and ghosting Computer-based ray tracing has been used from the design stage onward to minimize flare and ghosting and enhance contrast in backlit conditions. Ghosting has also been checked at every prototype stage, with its causes identified, assessed and eliminated. Sharpness combined with outstanding bokeh effect To fulfill the high demands for image quality in still photography, Sigma has solved a wide range of issues. The benefit of these efforts can now be enjoyed in cine lenses as well. Color balance standardized across the lineup All of the lenses in the lineup are designed to comply with Sigma's CCI standard. Standardized color balance makes color correction a snap. 6K-8K class resolution The lineup features the same optical system that delivers 50-megapixel or higher resolution in still photography. Therefore, these lenses are ready for higher resolution shooting and are ideal for chroma keying as well. Build Quality Lightweight and compact Leveraging the high-precision, high-efficiency mass production technologies developed for its still camera lenses, Sigma has made extremely lightweight and compact cine lenses a reality. Featuring all functions essential to cinematography, these lenses keep weight and size to a minimum, while their specification is optimized for enhanced durability. The end result is a combination of performance and compact design at the highest level. Dust-proof and splash-proof construction The lineup features the same dust-proof and splash-proof construction as the Sigma 150-600mm F5-6.3 DG OS HSM/Sports. With each ring and mount specially sealed to prevent water and dust from entering, this lens is ready for use in tough conditions. The unusually robust...

Explore the world of cinematography with the FF Fully Luminous High-Speed Prime Cine 7-Lens Kit. This comprehensive kit includes 20mm, 24mm, 35mm, 50mm, 85mm T1.5, 14mm, and 135mm T2.0 lenses, all designed for PL Mount. The kit also comes with two protective cases, ensuring your lenses are always safe and ready for action.Experience the superior image quality of high-end prime lenses, compactly designed for full-frame compatibility. These lenses are engineered for 6K-8K shooting, allowing for diverse cuts without altering the lighting, thereby elevating your cinematography to new heights.Each lens in this kit undergoes rigorous inspection to ensure compliance with all specifications. Using Sigma's proprietary A1 Modulation Transfer Function (MTF) measuring system, even high-frequency details previously undetectable are now within the scope of quality control inspections. This meticulous process guarantees high-performance shooting with ultra-high resolution sensors.The design of these lenses minimizes flare and ghosting, enhancing contrast in backlit conditions. The sharpness of the lenses, combined with an outstanding bokeh effect, meets the high demands of image quality in both still photography and cine lenses.All lenses in this kit comply with Sigma's CCI standard, ensuring standardized color balance for easy color correction. They also feature the same optical system that delivers 50-megapixel or higher resolution in still photography, making them ideal for high-resolution shooting and chroma keying.The build quality of these lenses is exceptional, featuring a lightweight and compact design for enhanced durability. The lenses are dust-proof and splash-proof, with each ring and mount specially sealed for use in tough conditions. The 100% metal body is designed for long-term professional use.For enhanced visibility, the lenses feature luminous paint on the specification, gradation baseline, and lens change indications. The FULLY LUMINOUS versions also have rings with numbers and gradations finished with luminous paint. Information on rings is laser-engraved for long-term use.The front filter size is standardized at 82mm for the 24mm, 35mm, 50mm, 85mm, and 135mm lenses, allowing users to use the same size of ND filter on different lenses. The front diameter is 95mm, similar to other cine lenses and compatible with matte boxes.The positions of the gears in each ring are standardized, eliminating the need to adjust the follow focus, motor unit, or accessories when the lens changes. Each lens has a 0.8M gear pitch, which is the standard for cine lenses, ensuring compatibility with existing accessories.The mount with electronic contacts allows the lens to communicate important information to the body, such as focal length, shooting distance, and aperture. The kit also includes a dedicated lens support foot and a conventional cine-style front lens cap for each lens.In conclusion, the FF Fully Luminous High-Speed Prime Cine 7-Lens Kit offers a...

Make your cinematic vision a reality with the FF Fully Luminous High-Speed Prime Cine 7-Lens Kit. This comprehensive kit includes 20mm, 24mm, 35mm, 50mm, 85mm T1.5, 14mm, and 135mm T2.0 lenses, all designed for PL Mount, and comes with a protective case. These lenses are designed to rival high-end prime lenses in terms of image quality and compact construction, while also offering full-frame coverage. Specifically designed for 6K-8K shooting, these lenses enable seamless filming of various cuts without the need to adjust lighting, elevating your cinematography to new heights of performance. Sigma's meticulous lens performance evaluation ensures that each lens meets the highest standards. Using their proprietary A1 Modulation Transfer Function (MTF) measuring system, even high-frequency details previously undetectable are now within the scope of their quality control inspections. This ensures high-performance shooting with ultra-high resolution sensors. The design process of these lenses incorporates computer-based ray tracing from the initial stages to minimize flare and ghosting, enhancing contrast in backlit conditions. The lenses also deliver sharpness combined with an outstanding bokeh effect, meeting the high demands for image quality in both still photography and cinematography. All lenses in the kit comply with Sigma's CCI standard, ensuring standardized color balance for easy color correction. They are also designed for higher resolution shooting, making them ideal for chroma keying. Despite their high performance, these lenses are lightweight and compact, thanks to Sigma's high-precision, high-efficiency mass production technologies. They feature all the essential functions for cinematography while keeping weight and size to a minimum. The lenses are also dust-proof and splash-proof, ready for use in tough conditions. The 100% metal body ensures durability for long-term professional use. The lenses feature luminous paint for enhanced visibility in the dark, and information on rings is laser-engraved for longevity. The front filter size is standardized at 82mm, allowing users to use the same size of ND filter on different lenses. The lenses also feature standardized gear positions, silent ring stoppers, and a 180-degree focus rotational angle for high-precision focusing. The iris ring offers smooth manual control without clicks, and the T-stop display contributes to high-precision exposures. The mount with electronic contacts allows the lens to communicate important information to the camera body. Each lens comes with a dedicated lens support foot to minimize load on the camera body while enhancing mount stability. The kit also includes a cine-style front lens cap for each lens. In summary, the FF Fully Luminous High-Speed Prime Cine 7-Lens Kit offers a combination of performance and compact design at the highest level, making it an ideal choice for professional cinematographers.

When capturing the beauty of landscapes under varying light conditions, the 58mm ND Coverage Kit Plus+ from Adorama is an essential tool for every professional photographer's kit. This comprehensive set includes five high-quality neutral density filters: ND2 Plus+, ND4 Plus+, ND8 Plus+, ND64 Plus+, and ND1000 Plus+, each designed to provide precise light reduction to enhance your creative control. With the ability to block 1, 2, 3, 6, or 10 f-stops of light respectively, these filters facilitate the exploration of long exposure techniques and depth of field manipulation, ensuring that your images maintain clarity and detail, regardless of the lighting environment.The ND Coverage Kit Plus+ is engineered with 20 layers of advanced nano-coating, which not only simplifies the cleaning process but also offers superior protection against water, oil, and scratches. This innovative coating ensures a higher maximum light transmission and a more consistent transmission curve, resulting in sharper images, more vibrant colors, and greater depth in your photography.Crafted with the world's finest German SCHOTT optical glass, the filters in this kit promise true-to-life colors without any color cast, allowing the natural beauty of your subject to shine through. The quality of the glass is evident in every shot, providing the assurance of reliability and professional-grade performance.For those seeking to achieve beautiful depth of field with wider apertures or to create dynamic motion blur effects, this kit offers the flexibility to cut 1, 2, 3, 6, or 10 f-stops of light. This range of options opens up possibilities for more cinematic and expressive imagery, enabling photographers to slow down the shutter speed for that sought-after, filmic look.Each filter is constructed with an ultra-slim magnalium rim, meticulously designed to prevent vignetting and ensure compatibility with wide-angle lenses. The robust magnalium construction is built to last, providing a lifetime of reliable use. Additionally, the filters are double-threaded, allowing for the stacking of multiple filters or the attachment of screw-mount lens caps, further enhancing their versatility and efficiency in the field.In summary, the 58mm ND Coverage Kit Plus+ is a versatile, professional, and durable solution for photographers who demand the utmost quality and creative freedom in their work. Whether you're shooting serene landscapes or dynamic urban scenes, this kit equips you with the tools to master light and capture the world as you envision it.

Discover the transformative power of our 46mm ND Coverage Kit Plus+, a comprehensive set of professional-grade lens filters designed to enhance your landscape photography across all lighting conditions. This kit includes ND2 Plus+, ND4 Plus+, ND8 Plus+, ND64 Plus+, and ND1000 Plus+ filters, each designed to block varying levels of light, from 1 to 10 f-stops, offering you the flexibility to experiment with long exposure and depth of field effects.Our Plus+ range is distinguished by its 20 layers of nano-coating, which not only facilitate easy cleaning but also provide superior protection against water, oil, and scratches. This advanced coating technology ensures a higher maximum light transmission and a more consistent transmission curve, resulting in sharper images, richer colors, and enhanced depth.Crafted with world-leading German SCHOTT B270 optical glass, our filters promise exceptional quality and performance. This industry-leading glass is coated with a 20-layer nano-coating, enhancing sharpness, providing added protection, and making cleaning a breeze.Our 46mm ND Coverage Kit Plus+ also features an ultra-slim magnalium rim, consciously designed to prevent vignetting. This durable magnalium construction is built to last, ensuring you can rely on our filters for all your photography adventures.Moreover, all our filters are double-threaded, allowing for stacking filters or using screw-mount lens caps. This feature adds to the versatility and convenience of our kit, making it an essential tool for both professional and amateur photographers.Experience true colors, beautiful depth of field, longer motion blur, and a more cinematic look with our 46mm ND Coverage Kit Plus+. With more creative options for more light conditions, this kit is your key to unlocking the full potential of your landscape photography.