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Experience the transformative power of the Speed Booster XL 0.64x Adapter, designed specifically for full-frame Canon EF-Mount lenses and compatible with select Micro Four Thirds-Mount Cameras. This advanced optical tool not only increases the maximum aperture by 1 1/3 stops but also enhances the Modulation Transfer Function (MTF), making your lens 0.64x wider for a broader field of view. The Speed Booster XL 0.64x Adapter boasts a patented 6-element/4-group optical design, masterfully crafted by Caldwell Photographic in the USA. This design supports 4k video mode with DX lenses, ensuring high-resolution, professional-grade footage. Experience seamless autofocus on Panasonic Micro Four Thirds cameras, powered either by the camera body or an external 5V power source. The iris/aperture is controlled by the camera body, providing a smooth, automated experience. The adapter also supports image stabilization (IS) lenses and electronic manual focusing, making it a versatile tool for various shooting conditions. The Speed Booster XL 0.64x Adapter is designed with a detachable tripod foot compatible with Arca Swiss, Markins, and Photo Clam ball heads. The interior is painted with a flocking coating to minimize internal reflection, ensuring clear, high-quality images. This adapter is compatible with a range of cameras including Panasonic GH4, GH3, G3, G5, G6, G7, G10, GF3, GF5, GF6, GX1, Olympus E-PL7, Blackmagic Cinema Camera with Micro Four Thirds mount, and Blackmagic Pocket Cinema Camera. Please note that EF-S lenses require modification to fit, and third-party DX lenses may not cover the full Micro Four Thirds sensor in still photo and FHD video modes. The Speed Booster XL 0.64x Adapter is a game-changer for photographers and videographers, effectively transforming cameras like the Panasonic GH4 into a super-35 format 4k cine camera. It increases the speed of any attached lens by 1 1/3 stops, with a maximum output aperture of f/0.80 when an f/1.2 lens is used. Experience the Metabones difference, known for their precision, robust build quality, and outstanding finish. The adapter features a strong leaf-spring structure, ensuring a tight lens connection to reduce wear and prevent focus errors and optical alignment issues. Both the camera-side and lens-side of the adapter are made of precision-machined brass with chromium plating, ensuring smooth mounting and great appearance. With the Speed Booster XL 0.64x Adapter, you can achieve true electronic integration of the aperture diaphragm, allowing the camera to automatically choose the aperture in P or S exposure modes or manually dial in on the camera body in A or M modes. Experience the power, precision, and versatility of the Speed Booster XL 0.64x Adapter for Full-Frame Canon EF-Mount Lens to Select Micro Four Thirds-Mount Cameras, and elevate your photography and videography to new heights.

The fan has a strong motor which features a permanently lubricated bearing that operates quietly and requires no maintenance; The quality steel housing makes it sturdy and built to last. A variable speed controller on the power cord enables the fan to run at different speeds; With this speed switch, you can adjust it to the desired airflow level. This duct fan is compact and light-weight enough to be installed in areas with little available space. Superior balanced centrifugal impeller for long service life and quiet operation.

New optical design: advanced 5-element/4-group optical design incorporating ultra-high index tantalum-based optical glass to achieve extraordinary optical performance with improved corner sharpness, distortion and reduced vignetting. Like the revolutionary original Metabones Speed Booster announced in January 2013, the Speed Booster ULTRA has a magnification of 0.71x, and so it effectively reduces the crop factor of mirrorless cameras with DX-sized sensors, such as Sony E-mount and Fuji X-mount cameras, from 1.5x to 1.07x. However, the new ULTRA design makes very effective use of exotic materials at the furthest limit of glassmaking technology, and as a result is well corrected for use with virtually all full-frame SLR lenses regardless of exit pupil distance. Thus, the Speed Booster ULTRA performs extremely well with professional-grade f/2.8 zoom lenses such as the 24-70mm f/2.8 and 70-200mm f/2.8 zooms by Canon and Nikon to produce 17-50mm f/2.0 and 50-142mm f/2.0 high-speed zooms, respectively. Similarly, high-speed fixed focal length lenses such as a 50mm f/1.2 will be transformed into a 35.5mm f/0.9 lens with excellent contrast and resolution from the Center all the way to the edges of the image.

New optical design: advanced 5-element/4-group optical design incorporating ultra-high index tantalum-based optical glass to achieve extraordinary optical performance with improved corner sharpness, distortion and reduced vignetting. Like the revolutionary original Metabones Speed Booster announced in January 2013, the Speed Booster ULTRA has a magnification of 0.71x, and so it effectively reduces the crop factor of mirrorless cameras with DX-sized sensors, such as Sony E-mount and Fuji X-mount cameras, from 1.5x to 1.07x. However, the new ULTRA design makes very effective use of exotic materials at the furthest limit of glassmaking technology, and as a result is well corrected for use with virtually all full-frame SLR lenses regardless of exit pupil distance. Thus, the Speed Booster ULTRA performs extremely well with professional-grade f/2.8 zoom lenses such as the 24-70mm f/2.8 and 70-200mm f/2.8 zooms by Canon and Nikon to produce 17-50mm f/2.0 and 50-142mm f/2.0 high-speed zooms, respectively. Similarly, high-speed fixed focal length lenses such as a 50mm f/1.2 will be transformed into a 35.5mm f/0.9 lens with excellent contrast and resolution from the Center all the way to the edges of the image.

New optical design: advanced 5-element/4-group optical design incorporating ultra-high index tantalum-based optical glass to achieve extraordinary optical performance with improved corner sharpness, distortion and reduced vignetting. Like the revolutionary original Metabones Speed Booster announced in January 2013, the Speed Booster ULTRA has a magnification of 0.71x, and so it effectively reduces the crop factor of mirrorless cameras with DX-sized sensors, such as Sony E-mount and Fuji X-mount cameras, from 1.5x to 1.07x. However, the new ULTRA design makes very effective use of exotic materials at the furthest limit of glassmaking technology, and as a result is well corrected for use with virtually all full-frame SLR lenses regardless of exit pupil distance. Thus, the Speed Booster ULTRA performs extremely well with professional-grade f/2.8 zoom lenses such as the 24-70mm f/2.8 and 70-200mm f/2.8 zooms by Canon and Nikon to produce 17-50mm f/2.0 and 50-142mm f/2.0 high-speed zooms, respectively. Similarly, high-speed fixed focal length lenses such as a 50mm f/1.2 will be transformed into a 35.5mm f/0.9 lens with excellent contrast and resolution from the Center all the way to the edges of the image.

Increase maximum aperture by 1 stop. (with a maximum output aperture of f/0.9). Advanced 5-element/4-group optical design incorporating ultra-high index tantalum-based optical glass by Caldwell Photographic in the USA (patent granted).

Electronic integration of aperture diaphragm, controlled by or from the camera body.Partial autofocus support for late-model (post-2006) Canon-brand lenses. Powered by camera body. No external power source required.

Design for attaching full-frame PL Prime Lens to Canon RF-mount cameras/camcorders. Increase maximum aperture by 1 stop; Increase MTF.

Increase maximum aperture by 1 stop. (with a maximum output aperture of f/0.9). Advanced 5-element/4-group optical design incorporating ultra-high index tantalum-based optical glass by Caldwell Photographic in the USA (patent granted).

Always Enhance and Never Degrade the Performance of the Attached Master Lens. Like the ULTRA series for Sony E-mount, the new Speed Booster ULTRA m43 uses an advanced 5-element 4-group optical design incorporating ultra-high index tantalum-based optical glass. However, the new design is specifically optimised for the Micro Four Thirds sensor and filter stack, and as a result, achieves an astonishing level of performance that sets a new standard for focal reducers.

A new Micro-4/3 mount Speed Booster adapter designed exclusively for the Panasonic GH4 and other selected Micro Four Thirds cameras (refer to the below camera compatibility table), with a magnification of 0.64x. The Speed Booster XL 0.64x uses an advanced 6-element optical design to achieve extraordinary optical performance at apertures up to an incredible f/0.80, a new record for Micro Four Thirds format.

A new Micro-4/3 mount Speed Booster adapter designed exclusively for the Panasonic GH4 and other selected Micro Four Thirds cameras (refer to the below camera compatibility table), with a magnification of 0.64x. The Speed Booster XL 0.64x uses an advanced 6-element optical design to achieve extraordinary optical performance at apertures up to an incredible f/0.80, a new record for Micro Four Thirds format.

Let the Speed Booster Ultra 0.71x Adapter unlock the full potential of your Canon full-frame EF-mount lenses when paired with Micro Four Thirds-mount cameras. This high-quality, innovative adapter is designed to enhance your photography by increasing the maximum aperture by 1 stop, thus allowing for faster shutter speeds and superior performance in low-light conditions. The adapter's 0.71x magnification factor effectively reduces the crop factor of Micro Four Thirds cameras from 2.0x to 1.4x, expanding your field of view and enabling a more comprehensive capture of your subject.Crafted with a patented 5-element/4-group optical design that incorporates ultra-high index tantalum-based optical glass by Caldwell Photographic in the USA, the Speed Booster Ultra ensures exceptional image quality. The optical prowess of this adapter not only maintains but improves the MTF (Modulation Transfer Function) of any attached lens, promising sharp, clear images even when utilizing top-tier lenses like the Zeiss Otus series.On the electronic side, this durable and compact adapter boasts seamless integration with Panasonic Micro Four Thirds cameras, providing autofocus capabilities that are both accurate and reliable. The adapter can be powered by the camera body or an external 5V power source (not included), and it supports electronic manual focusing for select lenses. Additionally, it offers image stabilization support and transmits EXIF data such as focal length and aperture to the camera, ensuring a versatile and user-friendly experience.The Speed Booster Ultra is also equipped with a detachable tripod foot compatible with Arca Swiss, Markins, and Photo Clam ball heads, and it features a flocking material coating to minimize internal reflections. While it is optimized for Micro Four Thirds sensors, it is important to note that certain limitations apply, such as the need for modification of EF-S lenses and the lack of autofocus support for JVC and Olympus cameras.Choose the Speed Booster Ultra 0.71x Adapter for its compatibility with a wide range of Canon EF lenses and its ability to deliver a narrower depth of field and wider perspective. This adapter is the perfect tool for photographers and videographers looking to leverage the quality of their full-frame lenses on Micro Four Thirds camera bodies. Whether you're shooting stills or video, the Speed Booster Ultra is engineered to enhance performance without compromising the integrity of your master lens.

Speed Booster ULTRA for E-Mount and X-Mount camerasSharper corners, less distortion, reduced vignetting New optical design: advanced 5-element/4-group optical design incorporating ultra-high index tanatalum-based optical glass to achieve extraordinary optical performance with improved corner sharpness, distortion and reduced vignetting.Like the revolutionary original Metabones Speed Booster announced in January 2013, the Speed Booster ULTRA has a magnification of 0.71x and so it effectively reduces the crop factor of mirrorless cameras with DX-sized sensors, such as Sony E-mount and Fuji X-Mount cameras, from 1.5x to 1.07x. However, the new ULTRA design makes very effective use of exotic materials at the furthest limit of glassmaking technology and as a result is well corrected for use with virtually all fullframe SLR lenses regardless of exit pupil distance.Thus, the Speed Booster ULTRA performs extremely well with professional-grade f/2.8 zoom lenses such as the 24-70mm f/2.8 and 70-200mm f/2.8 zooms by Canon and Nikon to produce 17-50mm f/2.0 and 50-142mm f/2.0 high-speed zooms, respectively. Similarly, high-speed fixed focal length lenses such as a 50mm f/1.2 will be transformed into a 35.5mm f/0.9 lens with excellent contrast and resolution from the center all the way to the edges of the image. (More information can be found in the press release here)• Increase maximum aperture by 1 stop• Increase MTF• Makes lens 0.71x wider• Advanced 5-element/4-group optical design incorporating ultra-high index tanatalum-based optical glass by Caldwell Photographic in the USA (patent pending)• Electronic integration of aperture diaphragm, controlled by or from the camera body• Partial autofocus support for late-model (post-2006) Canon-brand lenses• Powered by camera body. No external power source required• High performance 32-bit processor and efficient switched-mode power supply• The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo Clam ball heads• Flocking material coating inside the inner hole to reduce the internal reflection CompatibilitySupported • EF lenses• Image stabilization (IS) lenses• Electronic manual focusing (e.g. EF 85/1.2L II and discontinued EF 50/1.0L)• EXIF (focal length, aperture, zoom range)• P, A, S, M exposure modes• Autofocus (see autofocus support section below)• Distance and zoom display on VG and FS series camcorders• Auto magnify• Contax N mount lenses modified to Canon EF by Conurus• Contax 645 NAM-1 adapter modified to Canon EF by Conurus• Sigma, Tamron and Tokina lenses in Canon EF mount Not supported EF-S lenses• DX lenses• NEX-VG900• Lens correction such as peripheral shading, CA and distortion• Focus confirmation "chip" (e.g. Dandelion)• M42 screw mount adapters• Stacking non-Metabones/non-Conurus mount adapters on top• Certain telephoto lenses• Lens: Tamron SP 17-50mm F/2.8 XR Di II VC Autofocus Autofocus is supported, with the following known limitations.• Autofocus...

Experience the transformative power of the Speed Booster XL 0.64x Adapter, designed specifically for full-frame Canon EF-Mount lenses and compatible with select Micro Four Thirds-Mount Cameras. This advanced optical tool not only increases the maximum aperture by 1 1/3 stops but also enhances the Modulation Transfer Function (MTF), making your lens 0.64x wider for a broader field of view. The Speed Booster XL 0.64x Adapter boasts a patented 6-element/4-group optical design, masterfully crafted by Caldwell Photographic in the USA. This design supports 4k video mode with DX lenses, ensuring high-resolution, professional-grade footage. Experience seamless autofocus on Panasonic Micro Four Thirds cameras, powered either by the camera body or an external 5V power source. The iris/aperture is controlled by the camera body, providing a smooth, automated experience. The adapter also supports image stabilization (IS) lenses and electronic manual focusing, making it a versatile tool for various shooting conditions. The Speed Booster XL 0.64x Adapter is designed with a detachable tripod foot compatible with Arca Swiss, Markins, and Photo Clam ball heads. The interior is painted with a flocking coating to minimize internal reflection, ensuring clear, high-quality images. This adapter is compatible with a range of cameras including Panasonic GH4, GH3, G3, G5, G6, G7, G10, GF3, GF5, GF6, GX1, Olympus E-PL7, Blackmagic Cinema Camera with Micro Four Thirds mount, and Blackmagic Pocket Cinema Camera. Please note that EF-S lenses require modification to fit, and third-party DX lenses may not cover the full Micro Four Thirds sensor in still photo and FHD video modes. The Speed Booster XL 0.64x Adapter is a game-changer for photographers and videographers, effectively transforming cameras like the Panasonic GH4 into a super-35 format 4k cine camera. It increases the speed of any attached lens by 1 1/3 stops, with a maximum output aperture of f/0.80 when an f/1.2 lens is used. Experience the Metabones difference, known for their precision, robust build quality, and outstanding finish. The adapter features a strong leaf-spring structure, ensuring a tight lens connection to reduce wear and prevent focus errors and optical alignment issues. Both the camera-side and lens-side of the adapter are made of precision-machined brass with chromium plating, ensuring smooth mounting and great appearance. With the Speed Booster XL 0.64x Adapter, you can achieve true electronic integration of the aperture diaphragm, allowing the camera to automatically choose the aperture in P or S exposure modes or manually dial in on the camera body in A or M modes. Experience the power, precision, and versatility of the Speed Booster XL 0.64x Adapter for Full-Frame Canon EF-Mount Lens to Select Micro Four Thirds-Mount Cameras, and elevate your photography and videography to new heights.

Experience the transformative power of the Speed Booster XL 0.64x Adapter, designed specifically for full-frame Canon EF-Mount lenses and compatible with select Micro Four Thirds-Mount Cameras. This advanced optical tool not only increases the maximum aperture by 1 1/3 stops but also enhances the Modulation Transfer Function (MTF), making your lens 0.64x wider for a broader field of view. The Speed Booster XL 0.64x Adapter boasts a patented 6-element/4-group optical design, masterfully crafted by Caldwell Photographic in the USA. This design supports 4k video mode with DX lenses, ensuring high-resolution, professional-grade footage. Experience seamless autofocus on Panasonic Micro Four Thirds cameras, powered either by the camera body or an external 5V power source. The iris/aperture is controlled by the camera body, providing a smooth, automated experience. The adapter also supports image stabilization (IS) lenses and electronic manual focusing, making it a versatile tool for various shooting conditions. The Speed Booster XL 0.64x Adapter is designed with a detachable tripod foot compatible with Arca Swiss, Markins, and Photo Clam ball heads. The interior is painted with a flocking coating to minimize internal reflection, ensuring clear, high-quality images. This adapter is compatible with a range of cameras including Panasonic GH4, GH3, G3, G5, G6, G7, G10, GF3, GF5, GF6, GX1, Olympus E-PL7, Blackmagic Cinema Camera with Micro Four Thirds mount, and Blackmagic Pocket Cinema Camera. Please note that EF-S lenses require modification to fit, and third-party DX lenses may not cover the full Micro Four Thirds sensor in still photo and FHD video modes. The Speed Booster XL 0.64x Adapter is a game-changer for photographers and videographers, effectively transforming cameras like the Panasonic GH4 into a super-35 format 4k cine camera. It increases the speed of any attached lens by 1 1/3 stops, with a maximum output aperture of f/0.80 when an f/1.2 lens is used. Experience the Metabones difference, known for their precision, robust build quality, and outstanding finish. The adapter features a strong leaf-spring structure, ensuring a tight lens connection to reduce wear and prevent focus errors and optical alignment issues. Both the camera-side and lens-side of the adapter are made of precision-machined brass with chromium plating, ensuring smooth mounting and great appearance. With the Speed Booster XL 0.64x Adapter, you can achieve true electronic integration of the aperture diaphragm, allowing the camera to automatically choose the aperture in P or S exposure modes or manually dial in on the camera body in A or M modes. Experience the power, precision, and versatility of the Speed Booster XL 0.64x Adapter for Full-Frame Canon EF-Mount Lens to Select Micro Four Thirds-Mount Cameras, and elevate your photography and videography to new heights.

Speed Booster ULTRA for E-Mount and X-Mount camerasSharper corners, less distortion, reduced vignetting New optical design: advanced 5-element/4-group optical design incorporating ultra-high index tanatalum-based optical glass to achieve extraordinary optical performance with improved corner sharpness, distortion and reduced vignetting.Like the revolutionary original Metabones Speed Booster announced in January 2013, the Speed Booster ULTRA has a magnification of 0.71x and so it effectively reduces the crop factor of mirrorless cameras with DX-sized sensors, such as Sony E-mount and Fuji X-Mount cameras, from 1.5x to 1.07x. However, the new ULTRA design makes very effective use of exotic materials at the furthest limit of glassmaking technology and as a result is well corrected for use with virtually all fullframe SLR lenses regardless of exit pupil distance.Thus, the Speed Booster ULTRA performs extremely well with professional-grade f/2.8 zoom lenses such as the 24-70mm f/2.8 and 70-200mm f/2.8 zooms by Canon and Nikon to produce 17-50mm f/2.0 and 50-142mm f/2.0 high-speed zooms, respectively. Similarly, high-speed fixed focal length lenses such as a 50mm f/1.2 will be transformed into a 35.5mm f/0.9 lens with excellent contrast and resolution from the center all the way to the edges of the image. (More information can be found in the press release here)• Increase maximum aperture by 1 stop• Increase MTF• Makes lens 0.71x wider• Advanced 5-element/4-group optical design incorporating ultra-high index tanatalum-based optical glass by Caldwell Photographic in the USA (patent pending)• Electronic integration of aperture diaphragm, controlled by or from the camera body• Partial autofocus support for late-model (post-2006) Canon-brand lenses• Powered by camera body. No external power source required• High performance 32-bit processor and efficient switched-mode power supply• The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo Clam ball heads• Flocking material coating inside the inner hole to reduce the internal reflection CompatibilitySupported • EF lenses• Image stabilization (IS) lenses• Electronic manual focusing (e.g. EF 85/1.2L II and discontinued EF 50/1.0L)• EXIF (focal length, aperture, zoom range)• P, A, S, M exposure modes• Autofocus (see autofocus support section below)• Distance and zoom display on VG and FS series camcorders• Auto magnify• Contax N mount lenses modified to Canon EF by Conurus• Contax 645 NAM-1 adapter modified to Canon EF by Conurus• Sigma, Tamron and Tokina lenses in Canon EF mount Not supported EF-S lenses• DX lenses• NEX-VG900• Lens correction such as peripheral shading, CA and distortion• Focus confirmation "chip" (e.g. Dandelion)• M42 screw mount adapters• Stacking non-Metabones/non-Conurus mount adapters on top• Certain telephoto lenses• Lens: Tamron SP 17-50mm F/2.8 XR Di II VC Autofocus Autofocus is supported, with the following known limitations.• Autofocus...

Let the Speed Booster Ultra 0.71x Adapter unlock the full potential of your Canon full-frame EF-mount lenses when paired with Micro Four Thirds-mount cameras. This high-quality, innovative adapter is designed to enhance your photography by increasing the maximum aperture by 1 stop, thus allowing for faster shutter speeds and superior performance in low-light conditions. The adapter's 0.71x magnification factor effectively reduces the crop factor of Micro Four Thirds cameras from 2.0x to 1.4x, expanding your field of view and enabling a more comprehensive capture of your subject.Crafted with a patented 5-element/4-group optical design that incorporates ultra-high index tantalum-based optical glass by Caldwell Photographic in the USA, the Speed Booster Ultra ensures exceptional image quality. The optical prowess of this adapter not only maintains but improves the MTF (Modulation Transfer Function) of any attached lens, promising sharp, clear images even when utilizing top-tier lenses like the Zeiss Otus series.On the electronic side, this durable and compact adapter boasts seamless integration with Panasonic Micro Four Thirds cameras, providing autofocus capabilities that are both accurate and reliable. The adapter can be powered by the camera body or an external 5V power source (not included), and it supports electronic manual focusing for select lenses. Additionally, it offers image stabilization support and transmits EXIF data such as focal length and aperture to the camera, ensuring a versatile and user-friendly experience.The Speed Booster Ultra is also equipped with a detachable tripod foot compatible with Arca Swiss, Markins, and Photo Clam ball heads, and it features a flocking material coating to minimize internal reflections. While it is optimized for Micro Four Thirds sensors, it is important to note that certain limitations apply, such as the need for modification of EF-S lenses and the lack of autofocus support for JVC and Olympus cameras.Choose the Speed Booster Ultra 0.71x Adapter for its compatibility with a wide range of Canon EF lenses and its ability to deliver a narrower depth of field and wider perspective. This adapter is the perfect tool for photographers and videographers looking to leverage the quality of their full-frame lenses on Micro Four Thirds camera bodies. Whether you're shooting stills or video, the Speed Booster Ultra is engineered to enhance performance without compromising the integrity of your master lens.

Speed Booster XL 0.64x A new Micro-4/3 mount Speed Booster adapter designed exclusively for the Panasonic GH4 and other selected Micro Four Thirds cameras (refer to the below camera compatbility table), with a magnification of 0.64x. The Speed Booster XL 0.64x uses an advanced 6-element optical design to achieve extraordinary optical performance at apertures up to an incredible f/0.80, a new record for Micro Four Thirds format. The new Speed Booster XL 0.64x reduces the full-frame crop factor of the Panasonic GH4 from 2.0x to 1.28x, thus effectively transforming these cameras into APS-H format.When the GH4 is used in Cinema 4k video mode the horizontal full frame crop factor is reduced from 2.34x to 1.50x, thus effectively transforming the GH4 into a super-35 format 4k cine camera. In addition, the speed of any attached lens is increased by 11/3 stops, with a maximum output aperture of f/0.80 when an f/1.2 lens is used. For example, a 50mm f/1.2 becomes a 32mm f/0.80, which is the fastest aperture available for full size Micro Four Thirds format.• Industry's best aperture ring covers a 8-stop range, clearly indicating actual number of f-stops. No more guesswork! (Patent pending)• Compatible to both Nikkor G lens & F lens (include non-AI & AI lens mounts)• Increase maximum aperture by 1 1/3 stops• Increase MTF• Makes lens 0.64x wider• Click-less manual G aperture ring• Support Panasonic GH4, GH3, G3, G5, G6, G10, GF3, GF5, GF6, GX1, Olympus E-PL7, Blackmagic Cinema Camera with Micro Four Thirds mount and Blackmagic Pocket Cinema Camera• Optics designed by Caldwell Photographic in the USA (patent pending)• The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo Clam ball heads• Tips: Before mounting your lens to the adaptor, please make sure that the f-stop of aperture ring on the adaptor is turned to "7" (i.e. mounting your lens to the adaptor while only the aperture ring in the adaptor is full closed.). Compatibility The Speed Booster XL 0.64x is similar to the Blackmagic-specific 0.64x BMCC Speed Booster (MB_SPNFG-BMCC-BM1), but has been completely re-designed to meet the following requirements:• The working distance has increased by 1mm to permit use on the Panasonic GH4 and a number of other Micro Four Thirds cameras without touching the flexible outer cover of the camera's shutter mechanism• The optics are optimized for a standard Micro Four Thirds filter stack thickness of 4mm rather than the 2.4mm found in Blackmagic cameras• The image circle diameter has been increased to 21.63mm so that the full 17.3mm x 13mm Four Thirds format is covered. This has been achieved while maintaining unusually high image quality over the 17.4mm image circle used by the Panasonic GH4 in its Cinema 4k video modeAlthough the Speed Booster XL 0.64x has extra clearance compared to the 0.64x BMCC Speed Booster, there are still a number of Micro Four Thirds cameras that are not supported due to mechanical clearance issues. This is...

So, you're looking to enhance your photography experience with the Speed Booster Ultra 0.71x Adapter, designed specifically for seamlessly attaching full-frame PL Prime Lenses to M43-mount cameras and camcorders. This innovative adapter not only increases your lens's maximum aperture by 1 stop but also enhances the Modulation Transfer Function (MTF), providing you with sharper, clearer images.This high-quality adapter makes your lens 0.71x wider, offering a broader field of view for capturing stunning landscapes or group shots. It features a patented 5-element/4-group optical design, incorporating ultra-high index tantalum-based optical glass by Caldwell Photographic in the USA, ensuring superior image quality and color accuracy.The Speed Booster Ultra 0.71x Adapter comes with a new positive-lock PL lens mount, a patent-pending feature that ensures secure and stable attachment of your lens. The interior of the adapter is flocked with felt material to reduce internal reflection, further enhancing image clarity and contrast.For added convenience, the tripod foot is detachable and compatible with Arca Swiss, Markins, and Photo Clam ball heads, providing you with more flexibility in your photography setup. This durable and compact adapter is designed exclusively for the Zeiss CP.2, CZ.2, and CP.3 lenses, making it an essential tool for photographers looking to maximize the potential of these lenses on their M43-mount cameras.