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The Baader Digital Solar Filter with PHOTO-Film OD 3.8 is a development made possible after the product launch of our Baader Solar Filters OD 5.0 in spring 2015. The filter has the same cell and mechanical specifications as our ASTF-Filter with Safety Film OD 5.0, the only difference lies within the used AstroSolar Film - our AstroSolar PHOTO Film OD 3.8 which has proven itself over the years. This film allows shortest exposure times - mainly used for digital videography and the lucky imaging technique - and thus almost "freezes" turbulences in the earths atmosphere. AstroSolar PHOTO Film OD 3.8 is NOT intended to observe the sun, only for digital imaging!Many ready made filters do stretch the filter material like a drumhead in order to make it look like a piece of glass - this absolutely does destroy the image quality, rendering the film useless for high magnification work. AstroSolar must be mounted entirely stress free in order to perform like a high precision plane optical window. It sounds like a contradiction with traditional perception of quality, but AstroSolar must show slight ripples! Only when the film is being put under stress by an improper cell mount it performs just like any single side coated glass-filter made of untreated float glass. ASTF/BDSF (AstroSolar Telescope Filter) Baader DIGITAL Solar Filter for high-end Telescopes This family of solar filters is made in the most elaborate way. AstroSolar must not be put under stress, neither during mounting the film, nor during any temperature change. For this reason the ASTF-Filter features a temperature compensated cell. The film itself is repeatably cemented onto an injection molded ring, whereas the substrate of that ring has the same thermal expansion like the Astro Solar Filter material itself.This free floating film-carrier ring is held onto the aluminum frame with the help of another holding ring made of fiber reinforced plastic - for a maximum of security against breaking of the cell. This temperature compensated cell enables the AstroSolar filter material to retain its excellent optical quality at any temperature - be it -30deg.C or +50deg.C.

Mounted Filters with Baader AstroSolar Safety Film OD 5.0 After 15 years of offering AstroSolar film sheets as DIY-product, this system of Baader Solar Filters is designed to retain the true optical quality of the diffraction limited AstroSolar Safety Film. Baader Solar Filters provide a professional and secure solution to observe and image the Sun using AstroSolar Safety Film OD 5.0. Many ready made filters do stretch the filter material like a drumhead in order to make it look like a piece of glass - this absolutely does destroy the image quality, rendering the film useless for high magnification work. AstroSolar must be mounted entirely stress free in order to perform like a high precision plane optical window. It sounds like a contradiction with traditional perception of quality, but AstroSolar must show slight ripples! Only when the film is being put under stress by an improper cell mount it performs just like any single side coated glass-filter made of untreated float glass. • Original Baader AstroSolar Safety Film (OD 5.0), cell mounted and quality inspected by skilled members of their staff • Clear white IR-rejecting front ring with reinforcing raised edges along the outer and inner circumference, designed to protect the solar filter material from contact with any sharp metal edge • No tool mounting and adjustment of the centering bolts to fit a wide variety of mechanical tube diameters. Bolts made to contact the outside or optional (if appropriate) the inside of the optical instrument tube • Non-rotating sliding fasteners made from aluminum that hold the centering bolts. These metal sliders are equipped with a machined indicator to point towards the adjustment index • Additional Phillips screws are integrated into the sliding fasteners, so that the centering bolts can be firmly fastened with a screw driver if preferred by the user • Index scale provided beside each adjustment slot - adjacent to each sliding fastener, for fast and repeatable adjustment of the filter cell onto different telescope tubes • Black sliding washers supplied to securely cover the full length of the adjustment slots in the aluminum frame - for blocking sunlight from passing trough the filter cell beside the filter area • Three security straps included, to secure the position of the filter cell with Velcro-adhesive pads. A safety feature to absolutely ensure a secure fit in front of the telescope under any circumstances (gust of wind asf) • Warning text printed onto the front side of each filter cell: Read the Instructions before use • Cardboard gift box fit for safely shipping the filter ASTF (AstroSolar Telescope Filter) Baader Solar Filter for high-end Telescopes This family of solar filters is made in the most elaborate way. AstroSolar must not be put under stress, neither during mounting the film, nor during any temperature change. For this reason the ASTF-Filter features a temperature compensated cell. The film itself is repeatably cemented...

Be prepared to experience the Sun like never before with the Baader 80mm AstroSolar Spotting Scope Filter, a pinnacle of innovative and high-quality astronomical equipment. This filter is meticulously crafted to preserve the unparalleled optical quality of the diffraction-limited AstroSolar Safety Film, ensuring that your solar observations and photography are both safe and stunning.The Baader AstroSolar Safety Film OD 5.0 is the heart of this filter, renowned for its ability to deliver a clear and detailed view of solar phenomena. Unlike many ready-made filters that compromise image quality by stretching the material, the AstroSolar film in this filter is mounted stress-free. This crucial detail maintains the film's precision and allows it to function as a high-precision optical window, complete with the characteristic slight ripples that signify a lack of distorting stress.The durable, user-friendly design features a clear white IR-rejecting front ring with robust raised edges, ensuring the delicate solar filter material is safeguarded from any potential damage by sharp metal edges. The innovative no-tool mounting system, complete with centering bolts, is designed to accommodate a wide variety of mechanical tube diameters, offering versatility and ease of use.The filter's non-rotating sliding fasteners, crafted from premium aluminum, are equipped with machined indicators for precise adjustment. An index scale beside each adjustment slot allows for quick and repeatable positioning on different telescope tubes. For added security, black sliding washers are included to block any stray sunlight from passing through the filter cell.To ensure the utmost safety and stability, the filter comes with three security straps featuring Velcro-adhesive pads. These straps are a testament to the filter's user-friendly design, providing peace of mind even in the face of unexpected gusts of wind.Each filter cell is clearly marked with a warning text, urging users to read the instructions before use, emphasizing the importance of safety in solar observation. The filter arrives in a protective cardboard gift box, perfect for safe storage and transportation.The Baader 80mm AstroSolar Spotting Scope Filter is an efficient and professional solution for all spotting scopes, amateur telescopes, and camera lenses, supporting magnifications up to 120x. The package includes three centering bolts, safety straps, and comprehensive 32-page mounting instructions, ensuring you have everything you need for a seamless and secure setup.Elevate your astrological observation and capture the Sun's grandeur with confidence and clarity with the Baader 80mm AstroSolar Spotting Scope Filter.

Take your solar observation and photography to the next level with the 115mm AstroSolar Spotting Scope Filter, featuring the renowned Baader AstroSolar Safety Film OD 5.0. This high-quality filter is meticulously crafted to preserve the exceptional optical clarity of the diffraction-limited AstroSolar Safety Film, ensuring that your view of the sun remains sharp and detailed.Unlike many ready-made filters that compromise image quality by stretching the material taut, the AstroSolar Spotting Scope Filter is designed to allow the film to exhibit slight natural ripples. This unique characteristic is crucial, as it indicates the film is mounted without stress, akin to a high precision plane optical window, which is essential for maintaining top-notch image quality, especially when working at high magnifications.The filter features a robust, clear white IR-rejecting front ring with reinforced raised edges, which safeguards the delicate solar filter material from any potential damage by sharp metal edges. The innovative design includes a no-tool mounting system, complete with centering bolts that easily adjust to fit a wide range of mechanical tube diameters, ensuring a secure and customized fit for your equipment.Constructed with non-rotating aluminum sliding fasteners, the filter boasts an integrated machined indicator for precise alignment. For those who prefer a more permanent setup, additional Phillips screws are integrated into the fasteners, allowing for a firm attachment using a screwdriver.Each filter is equipped with an index scale beside the adjustment slots, providing a quick and repeatable method for adapting the filter cell to different telescope tubes. Black sliding washers are also included to block any stray sunlight from passing through the filter cell outside the filtered area.For added security, the filter comes with three durable straps, complete with Velcro-adhesive pads, to ensure the filter remains securely in place during use, even in windy conditions. The front of each filter cell is clearly marked with a warning text, reminding users to read the instructions before use, emphasizing safety in solar observation.The filter is housed in a sturdy cardboard gift box, which doubles as a protective container for safe shipping. The ASSF (AstroSolar Spotting Scope Filter) Baader Solar Filter is an ideal solution for all spotting scopes, tele-lenses, and amateur telescopes, supporting magnifications up to 120x.The package includes three centering bolts, each 13mm in diameter and 24mm in height, adjustable to fit the tube diameter of your binocular. For the ASSF 115 and 130 models, the package contains three centering bolts of 10mm diameter and 38mm length. Additionally, three safety straps with glue-pads and a comprehensive 32-page mounting instruction booklet are provided, ensuring you have everything needed for a safe and enjoyable solar viewing experience.

Because the Baader Planetarium 120mm AstroSolar BDSF 3.8 White-Light Digital Solar Filter for Telescopes is a testament to innovative technology in the field of astronomy, it stands out as a superior choice for professionals and enthusiasts alike. This high-quality solar filter, a successor to the acclaimed Baader Solar Filters OD 5.0, boasts the same robust cell and mechanical specifications, but with a significant upgrade - the AstroSolar PHOTO Film OD 3.8. This reliable filter is designed specifically for digital videography and the lucky imaging technique, allowing for the shortest exposure times and effectively "freezing" atmospheric turbulences. However, it's important to note that the AstroSolar PHOTO Film OD 3.8 is intended solely for digital imaging, not for direct solar observation.Unlike many ready-made filters that stretch the filter material, compromising image quality, the AstroSolar filter is mounted stress-free, ensuring it performs like a high precision plane optical window. This might contradict traditional perceptions of quality, as AstroSolar is designed to show slight ripples, but this is a key feature that ensures optimal performance.The AstroSolar Telescope Filter (ASTF/BDSF) is a part of Baader's DIGITAL Solar Filter line for high-end telescopes, crafted with meticulous attention to detail. The filter material is carefully cemented onto an injection-molded ring, which has the same thermal expansion as the AstroSolar Filter material itself. This free-floating film-carrier ring is secured to the aluminum frame with a fiber-reinforced plastic holding ring, providing maximum security against cell breakage.The temperature-compensated cell of this efficient solar filter ensures that the AstroSolar filter material retains its excellent optical quality in any temperature, from -30deg.C to +50deg.C. This durable and reliable solar filter from Baader Planetarium is a testament to the brand's commitment to providing innovative and high-quality astronomical equipment.

Take your astrophotography to the next level with the 280mm AstroSolar Telescope Filter from Baader Planetarium, a trusted name in high-quality astronomical equipment. This innovative filter is designed to enhance your solar observations and photography, providing high contrast, sharp images of the sun's surface. The AstroSolar Telescope Filter is crafted with Baader's AstroSolar Safety Film OD 5.0, a product of over 15 years of expertise. Unlike many ready-made filters, this one is mounted entirely stress-free, ensuring it performs like a high precision plane optical window. This design choice may result in slight ripples, but rest assured, this is a sign of quality and not a defect. The filter is housed in a clear white IR-rejecting front ring with reinforcing raised edges along the outer and inner circumference. This design is intended to protect the solar filter material from contact with any sharp metal edge. The filter is also equipped with non-rotating sliding fasteners made from durable aluminum that hold the centering bolts. These fasteners come with a machined indicator to point towards the adjustment index, ensuring easy and accurate setup. For added convenience, the AstroSolar Telescope Filter features no-tool mounting and adjustment of the centering bolts, making it compatible with a wide variety of mechanical tube diameters. The filter also includes three security straps to ensure a secure fit in front of the telescope under any circumstances, such as a sudden gust of wind. The AstroSolar Telescope Filter is designed for use with telescopes that have a focal length of 1000mm or more. It's perfect for high-end telescopes and extreme tele-lenses, making it a versatile addition to your astrophotography equipment. Experience the difference of a temperature-compensated cell that allows the AstroSolar filter material to retain its excellent optical quality at any temperature, from -30Deg C to +50Deg C. This feature ensures no astigmatism during winter observation or with temperature changes in summer. The 280mm AstroSolar Telescope Filter is more than just a tool; it's a gateway to exploring the sun's surface in detail. Whether you're observing individual sunspots or capturing high-magnification images, this filter is your key to unlocking the sun's secrets.

Be captivated by the celestial wonders with the 100mm AstroSolar Telescope Filter by Baader Planetarium, a renowned name in the world of astronomical equipment. This high-quality filter is designed to enhance your stargazing experience by reducing light pollution and increasing contrast, allowing you to observe planets, stars, and other space phenomena in vivid detail.The AstroSolar Telescope Filter is crafted with Baader's AstroSolar Safety Film OD 5.0, a product of 15 years of innovation. Unlike many ready-made filters that stretch the filter material, compromising image quality, this filter ensures the AstroSolar film is mounted stress-free, preserving its high precision optical window. This results in a superior viewing experience, even at high magnifications.The filter is housed in a clear white IR-rejecting front ring with raised edges, designed to protect the solar filter material from any sharp metal edge. It features a user-friendly, no-tool mounting system with adjustable centering bolts, accommodating a wide variety of mechanical tube diameters. The filter also includes non-rotating sliding fasteners made from durable aluminum, equipped with a machined indicator for easy adjustments.For added convenience, the AstroSolar Telescope Filter comes with an index scale beside each adjustment slot, allowing for fast and repeatable adjustments. It also includes black sliding washers to block sunlight from passing through the filter cell, ensuring optimal viewing conditions.Safety is a priority with this filter. It includes three security straps to secure the filter cell with Velcro-adhesive pads, ensuring a secure fit in front of the telescope under any circumstances. A warning text is also printed onto the front side of each filter cell, reminding users to read the instructions before use.The AstroSolar Telescope Filter is suitable for solar observation and photography with all high-end telescopes and extreme tele-lenses. It's designed to retain its excellent optical quality at any temperature, from -30Deg C to +50Deg C, ensuring no astigmatism during winter observation or with temperature changes in summer.Experience the universe like never before with the 100mm AstroSolar Telescope Filter, a testament to Baader Planetarium's commitment to quality and innovation in astronomical equipment.

How can you safely observe the sun with unparalleled clarity? The 65mm AstroSolar Spotting Scope Filter by Baader Planetarium is your professional-grade solution. This high-quality filter is meticulously crafted with Baader's AstroSolar Safety Film OD 5.0, renowned for its diffraction-limited optical performance. Unlike many ready-made filters that compromise image quality by stretching the material taut, the AstroSolar filter is designed to be mounted stress-free, ensuring it acts like a high-precision optical window. This innovative approach allows for slight natural ripples in the film, which is crucial for maintaining superior image quality, especially when engaging in high-magnification solar observations.The durable and efficient design features a clear white IR-rejecting front ring with reinforced raised edges, safeguarding the delicate solar filter material from any potential damage by sharp metal edges. The user-friendly, no-tool mounting system is equipped with centering bolts that can be easily adjusted to fit a wide range of mechanical tube diameters, ensuring a secure and stable fit for your spotting scope. The non-rotating aluminum sliding fasteners, complete with machined indicators, allow for precise and repeatable adjustments, while the integrated Phillips screws offer an additional level of security if desired.For added safety and convenience, the filter includes an index scale beside each adjustment slot, black sliding washers to block any stray light, and three security straps with Velcro-adhesive pads to ensure the filter remains securely in place, even in windy conditions. The front of each filter cell is clearly marked with a warning text, reminding users to read the instructions before use, emphasizing the commitment to safety and user-friendliness.The 65mm AstroSolar Spotting Scope Filter is ideal for solar observation and photography with all spotting scopes, amateur telescopes, and camera lenses, supporting magnifications up to 120x. The filter material is mounted onto a plastic ring that acts as a stabilizing element, which is then secured to the aluminum front frame. The thermal expansion properties of the plastic ring closely match those of the film, ensuring consistent performance under varying temperatures.Included with the filter are three centering bolts, adjustable to the diameter of your optical instrument, and three safety straps with glue-pads. Additionally, a comprehensive 32-page mounting instruction booklet is provided, ensuring you can confidently and safely set up your solar viewing experience. The filter comes neatly packaged in a cardboard gift box, designed for safe shipping and storage of your AstroSolar Spotting Scope Filter.Elevate your solar observation to professional levels with the Baader Planetarium 65mm AstroSolar Spotting Scope Filter, where innovative design meets user-friendly functionality for a clear, safe, and efficient astronomical experience.

Just introduced, the Baader Digital Solar Filter with PHOTO-Film OD 3.8 is a groundbreaking innovation in the field of solar photography. This advanced filter, an evolution from our highly successful Baader Solar Filters OD 5.0 launched in 2015, offers the same robust cell and mechanical specifications as our ASTF-Filter with Safety Film OD 5.0. The key distinction lies in the AstroSolar Film used - our renowned AstroSolar PHOTO Film OD 3.8.This specialized film has been tried and tested over the years, allowing for the shortest exposure times. It's primarily used for digital videography and the lucky imaging technique, effectively "freezing" atmospheric turbulences. However, it's important to note that the AstroSolar PHOTO Film OD 3.8 is designed exclusively for digital imaging and not for direct sun observation.Unlike many ready-made filters that stretch the filter material like a drumhead, compromising image quality, our AstroSolar filter is designed to be mounted entirely stress-free. This ensures it performs like a high precision plane optical window, essential for high magnification work. Despite contradicting traditional perceptions of quality, AstroSolar is designed to show slight ripples, which is a sign of its optimal performance.The ASTF/BDSF (AstroSolar Telescope Filter) Baader DIGITAL Solar Filter is a part of our high-end telescope accessories. It's meticulously crafted to ensure that the AstroSolar film is not put under stress during mounting or temperature changes. This is achieved through a temperature-compensated cell and a free-floating film-carrier ring, which is securely held onto the aluminum frame with a fiber-reinforced plastic ring. This design ensures maximum security against cell breakage.The temperature-compensated cell allows the AstroSolar filter material to maintain its superior optical quality at any temperature, from as low as -30deg.C to as high as +50deg.C. This makes the 180mm AstroSolar BDSF 3.8 White-Light Digital Solar Filter for Telescopes a reliable tool for capturing stunning solar images under varying conditions.

From the renowned Baader Planetarium, the 150mm AstroSolar Spotting Scope Filter is a premium-quality accessory for your astronomical observation needs. This filter is designed with the original Baader AstroSolar Safety Film (OD 5.0), meticulously mounted and quality inspected by skilled staff members. This ensures the retention of the true optical quality of the diffraction-limited AstroSolar Safety Film, providing a professional and secure solution for observing and imaging the Sun.Unlike many ready-made filters, the Baader AstroSolar Spotting Scope Filter does not stretch the filter material like a drumhead, which can compromise image quality. Instead, the AstroSolar is mounted entirely stress-free, performing like a high precision plane optical window. This might show slight ripples, but it's a testament to the filter's superior optical performance.The filter features a clear white IR-rejecting front ring with reinforcing raised edges along the outer and inner circumference. This design protects the solar filter material from contact with any sharp metal edge. The filter also includes a no-tool mounting system and adjustable centering bolts, designed to fit a wide variety of mechanical tube diameters. The filter's non-rotating sliding fasteners are made from durable aluminum and come equipped with a machined indicator to point towards the adjustment index. Additional Phillips screws are integrated into the sliding fasteners, allowing the centering bolts to be firmly fastened with a screwdriver if preferred by the user. For fast and repeatable adjustment, an index scale is provided beside each adjustment slot. Black sliding washers are supplied to securely cover the full length of the adjustment slots in the aluminum frame, blocking sunlight from passing through the filter cell beside the filter area. The filter also includes three security straps with Velcro-adhesive pads, ensuring a secure fit in front of the telescope under any circumstances. A warning text is printed onto the front side of each filter cell, reminding users to read the instructions before use. The 150mm AstroSolar Spotting Scope Filter is a versatile solution for all spotting scopes, tele-lenses, and amateur telescopes, with magnifications up to 120x. The AstroSolar filter material is mounted onto a plastic ring, which works as a stabilizing element for the filter cell. This plastic ring is then mounted onto the aluminum front frame, ensuring a stable and rigid solution for your astronomical observations. Safe solar observation and photography are made possible with all spotting scopes, amateur telescopes, and camera lenses. The filter comes with three centering bolts of varying diameters and heights, adjustable to the tube diameter of your binocular. The package also includes three safety straps with glue-pads and a comprehensive 32-page mounting instruction manual. Experience the universe in a new light with the 150mm AstroSolar Spotting Scope Filter from Baader...

Where precision and safety in solar observation are paramount, the Baader 160mm AstroSolar BDSF 3.8 White-Light Digital Solar Filter emerges as a superior choice for astronomers and astrophotographers alike. This high-quality filter is a product of the renowned Baader Planetarium, a leader in the production of astronomical equipment, ensuring that users receive a product that is both innovative and reliable.Crafted with meticulous attention to detail, the Baader Digital Solar Filter is equipped with the AstroSolar PHOTO Film OD 3.8, a film that has stood the test of time and has been specifically designed for digital videography and the lucky imaging technique. This innovative film allows for the shortest exposure times, effectively "freezing" atmospheric turbulences and providing crystal-clear images of solar phenomena.Unlike many ready-made filters that compromise image quality by stretching the filter material taut, the Baader AstroSolar filter is engineered to maintain the film's integrity. The filter must be mounted stress-free to function as a high precision plane optical window, which is why it may exhibit slight ripples - a hallmark of its exceptional design that ensures optimal performance without the distortion found in lesser quality filters.The Baader Digital Solar Filter boasts a durable, temperature-compensated cell that prevents stress on the AstroSolar film during temperature fluctuations. This ensures that the filter maintains its superior optical quality in a wide range of temperatures, from -30°C to +50°C. The film is carefully cemented onto an injection-molded ring that matches the thermal expansion of the AstroSolar material, creating a free-floating film-carrier ring. This ring is then securely held within an aluminum frame by a fiber-reinforced plastic holding ring, providing maximum security and preventing any potential damage to the cell.The Baader 160mm AstroSolar BDSF 3.8 White-Light Digital Solar Filter is an efficient and user-friendly solution for those seeking to capture the sun's splendor without compromising their equipment or vision. Its large 160mm filter size allows for an ample amount of light to pass through, resulting in clearer and more detailed images. Whether for professional or amateur use, this solar filter stands out as a top-tier accessory for any high-end telescope, offering both safety and unparalleled optical performance for solar digital imaging.

Be prepared to capture the sun's brilliance with the 100mm AstroSolar BDSF 3.8 White-Light Digital Solar Filter for Telescopes. This high-quality, durable solar filter is a product of Baader Planetarium, a brand renowned for its innovative and advanced astronomical equipment. This solar filter is designed with AstroSolar PHOTO Film OD 3.8, a material that has proven its effectiveness over the years. This film allows for the shortest exposure times, making it ideal for digital videography and the lucky imaging technique. It's capable of almost "freezing" turbulences in the earth's atmosphere, providing you with clear, crisp images. Unlike many ready-made filters that stretch the filter material like a drumhead, compromising image quality, the AstroSolar BDSF 3.8 White-Light Digital Solar Filter is designed to be mounted entirely stress-free. This ensures it performs like a high precision plane optical window, even under temperature changes. The filter's large 100mm size allows more light to pass through, providing a clearer image. It's important to note that this filter is intended for digital imaging, not direct sun observation. The AstroSolar BDSF 3.8 White-Light Digital Solar Filter features a temperature-compensated cell. The film is cemented onto an injection-molded ring with the same thermal expansion as the AstroSolar Filter material itself. This free-floating film-carrier ring is held onto the aluminum frame with a fiber-reinforced plastic ring, ensuring maximum security against breaking of the cell. This temperature-compensated cell allows the AstroSolar filter material to maintain its excellent optical quality at any temperature, from -30deg.C to +50deg.C. Experience the difference of a truly effective solar filter with the 100mm AstroSolar BDSF 3.8 White-Light Digital Solar Filter for Telescopes.

Mounted Filters with Baader AstroSolar Safety Film OD 5.0 After 15 years of offering AstroSolar film sheets as DIY-product, this system of Baader Solar Filters is designed to retain the true optical quality of the diffraction limited AstroSolar Safety Film. Baader Solar Filters provide a professional and secure solution to observe and image the Sun using AstroSolar Safety Film OD 5.0. Many ready made filters do stretch the filter material like a drumhead in order to make it look like a piece of glass - this absolutely does destroy the image quality, rendering the film useless for high magnification work. AstroSolar must be mounted entirely stress free in order to perform like a high precision plane optical window. It sounds like a contradiction with traditional perception of quality, but AstroSolar must show slight ripples! Only when the film is being put under stress by an improper cell mount it performs just like any single side coated glass-filter made of untreated float glass. • Original Baader AstroSolar Safety Film (OD 5.0), cell mounted and quality inspected by skilled members of their staff • Clear white IR-rejecting front ring with reinforcing raised edges along the outer and inner circumference, designed to protect the solar filter material from contact with any sharp metal edge • No tool mounting and adjustment of the centering bolts to fit a wide variety of mechanical tube diameters. Bolts made to contact the outside or optional (if appropriate) the inside of the optical instrument tube • Non-rotating sliding fasteners made from aluminum that hold the centering bolts. These metal sliders are equipped with a machined indicator to point towards the adjustment index • Additional Phillips screws are integrated into the sliding fasteners, so that the centering bolts can be firmly fastened with a screw driver if preferred by the user • Index scale provided beside each adjustment slot - adjacent to each sliding fastener, for fast and repeatable adjustment of the filter cell onto different telescope tubes • Black sliding washers supplied to securely cover the full length of the adjustment slots in the aluminum frame - for blocking sunlight from passing trough the filter cell beside the filter area • Three security straps included, to secure the position of the filter cell with Velcro-adhesive pads. A safety feature to absolutely ensure a secure fit in front of the telescope under any circumstances (gust of wind asf) • Warning text printed onto the front side of each filter cell: Read the Instructions before use • Cardboard gift box fit for safely shipping the filter ASTF (AstroSolar Telescope Filter) Baader Solar Filter for high-end Telescopes This family of solar filters is made in the most elaborate way. AstroSolar must not be put under stress, neither during mounting the film, nor during any temperature change. For this reason the ASTF-Filter features a temperature compensated cell. The film itself is repeatably cemented...

Where precision and safety in solar observation are paramount, the Baader 120mm AstroSolar Telescope Filter emerges as the pinnacle of solar filtration technology. This high-quality filter is meticulously crafted with Baader's AstroSolar Safety Film OD 5.0, ensuring that the true optical quality of the diffraction-limited film is preserved for the most discerning astronomers and astrophotographers.The innovative design of the Baader Solar Filters offers a professional and secure method to observe and image the Sun, free from the common pitfalls of ready-made filters that often compromise image quality by stretching the material. Unlike these inferior products, the AstroSolar film in this filter is mounted entirely stress-free, maintaining its high precision plane optical window characteristics. This results in an efficient and advanced viewing experience, where slight ripples in the film are not a defect but a feature indicating optimal performance.The filter boasts a clear white IR-rejecting front ring with reinforcing raised edges, designed to protect the delicate solar filter material from any contact with sharp metal edges. The durable construction includes non-rotating sliding fasteners made from aluminum, which are equipped with machined indicators for easy adjustment. The centering bolts, designed to fit a wide variety of mechanical tube diameters, can be adjusted without tools and secured firmly with integrated Phillips screws if desired.An index scale beside each adjustment slot ensures fast and repeatable mounting of the filter cell onto different telescope tubes. Black sliding washers are included to cover the full length of the adjustment slots in the aluminum frame, blocking any stray sunlight from passing through the filter cell beside the filter area.For added security, the filter comes with three safety straps that secure the position of the filter cell with Velcro-adhesive pads, ensuring a secure fit in front of the telescope under all circumstances, including gusts of wind. The front side of each filter cell features a printed warning text, urging users to read the instructions before use.The ASTF (AstroSolar Telescope Filter) Baader Solar Filter is designed to withstand temperature changes without putting stress on the film, thanks to its temperature compensated cell. The film is cemented onto an injection molded ring that matches the thermal expansion of the AstroSolar filter material, ensuring consistent optical quality from -30°C to +50°C.Safe for solar observation and photography with all high-end telescopes and extreme tele-lenses, this filter is suitable for the highest magnifications and detailed observation of individual sunspots. Each ASTF Filter includes two sets of centering bolts (38mm length, 10mm and 20mm diameter), three safety straps with glue-pads, three rubber plugs to cover unused holes, and mounting instructions, all packaged in a protective cardboard gift box fit for safe shipping. With the Baader 120mm...

Mounted Filters with Baader AstroSolar Safety Film OD 5.0 After 15 years of offering AstroSolar film sheets as DIY-product, this system of Baader Solar Filters is designed to retain the true optical quality of the diffraction limited AstroSolar Safety Film. Baader Solar Filters provide a professional and secure solution to observe and image the Sun using AstroSolar Safety Film OD 5.0. Many ready made filters do stretch the filter material like a drumhead in order to make it look like a piece of glass - this absolutely does destroy the image quality, rendering the film useless for high magnification work. AstroSolar must be mounted entirely stress free in order to perform like a high precision plane optical window. It sounds like a contradiction with traditional perception of quality, but AstroSolar must show slight ripples! Only when the film is being put under stress by an improper cell mount it performs just like any single side coated glass-filter made of untreated float glass. • Original Baader AstroSolar Safety Film (OD 5.0), cell mounted and quality inspected by skilled members of their staff • Clear white IR-rejecting front ring with reinforcing raised edges along the outer and inner circumference, designed to protect the solar filter material from contact with any sharp metal edge • No tool mounting and adjustment of the centering bolts to fit a wide variety of mechanical tube diameters. Bolts made to contact the outside or optional (if appropriate) the inside of the optical instrument tube • Non-rotating sliding fasteners made from aluminum that hold the centering bolts. These metal sliders are equipped with a machined indicator to point towards the adjustment index • Additional Phillips screws are integrated into the sliding fasteners, so that the centering bolts can be firmly fastened with a screw driver if preferred by the user • Index scale provided beside each adjustment slot - adjacent to each sliding fastener, for fast and repeatable adjustment of the filter cell onto different telescope tubes • Black sliding washers supplied to securely cover the full length of the adjustment slots in the aluminum frame - for blocking sunlight from passing trough the filter cell beside the filter area • Three security straps included, to secure the position of the filter cell with Velcro-adhesive pads. A safety feature to absolutely ensure a secure fit in front of the telescope under any circumstances (gust of wind asf) • Warning text printed onto the front side of each filter cell: Read the Instructions before use • Cardboard gift box fit for safely shipping the filter ASSF (AstroSolar Spotting Scope Filter) Baader Solar Filter for Spotting Scopes, amateur telescopes and camera lenses This family of filters offers a stable and rigid solution for all spotting scopes, tele-lenses and amateur telescopes, with magnifications up to 120x. The AstroSolar filter material is likewise mounted onto a plastic ring whereas the plastic ring...

Make your solar imaging experience unparalleled with the Baader 140mm AstroSolar BDSF 3.8 White-Light Digital Solar Filter, specifically designed for telescopes. This advanced filter is the result of innovative developments following the release of the Baader Solar Filters OD 5.0 in spring 2015. It shares the same robust cell and mechanical specifications as the ASTF-Filter with Safety Film OD 5.0, but with a crucial difference: the inclusion of the AstroSolar PHOTO Film OD 3.8.The AstroSolar PHOTO Film OD 3.8 is a time-tested medium that significantly reduces exposure times, making it ideal for digital videography and the lucky imaging technique. By enabling such short exposure times, it effectively "freezes" atmospheric turbulences, providing you with crisp and clear images of solar phenomena. It's important to note that this filter is designed exclusively for digital imaging and is not suitable for direct solar observation.Unlike many ready-made filters that compromise image quality by stretching the material taut, the AstroSolar PHOTO Film OD 3.8 is meticulously mounted to remain entirely stress-free. This ensures that it performs like a high-precision plane optical window, maintaining its superior image quality even at high magnifications. The slight ripples in the AstroSolar film are a hallmark of its quality, indicating that it has not been subjected to damaging stress.The Baader ASTF/BDSF (AstroSolar Telescope Filter) series represents the pinnacle of solar filter technology. To prevent any stress on the AstroSolar material, the filter features a temperature-compensated cell. The film is securely cemented onto an injection-molded ring that matches the thermal expansion of the AstroSolar filter material, ensuring optimal performance across a wide temperature range, from -30°C to +50°C. This free-floating film-carrier ring is then secured to the aluminum frame with a fiber-reinforced plastic holding ring, providing maximum security against breakage.Invest in the Baader 140mm AstroSolar BDSF 3.8 White-Light Digital Solar Filter to capture the sun's most dynamic moments with your telescope, ensuring that every image is a testament to the wonders of our closest star.

While observing the celestial wonders, the 240mm AstroSolar Telescope Filter from Baader Planetarium ensures you experience the highest quality images. This filter, designed for astrophotography, is crafted with the renowned AstroSolar Safety Film OD 5.0, which has been the choice of astronomy enthusiasts for over 15 years. Unlike many ready-made filters, the Baader AstroSolar Filter is designed to maintain the true optical quality of the diffraction-limited AstroSolar Safety Film. It is mounted stress-free, ensuring it performs like a high precision plane optical window, which is essential for high magnification work. The filter is housed in a clear white IR-rejecting front ring with reinforcing raised edges. This design protects the solar filter material from contact with any sharp metal edge, ensuring its durability. The filter can be easily mounted and adjusted to fit a wide variety of mechanical tube diameters, thanks to its non-rotating sliding fasteners made from aluminum. For user convenience, the filter features an index scale beside each adjustment slot, allowing for fast and repeatable adjustment of the filter cell onto different telescope tubes. It also includes three security straps to ensure a secure fit in front of the telescope under any circumstances, such as a gust of wind. The AstroSolar Telescope Filter is safe for solar observation and photography with all high-end telescopes and extreme tele-lenses. It is suitable for the highest magnifications and detailed observation of individual sunspots. The temperature-compensated cell enables the AstroSolar filter material to retain its excellent optical quality at any temperature, from -30Deg C to +50Deg C. In the box, you'll find the ASTF Filter with two sets of centering bolts in 38mm length, three safety straps with glue-pads, and three rubber plugs to cover the holes that are not used, along with mounting instructions. Experience the sun like never before with the 240mm AstroSolar Telescope Filter from Baader Planetarium.

Be captivated by the celestial wonders with the 140mm AstroSolar Telescope Filter, a high-quality product from the reputable Baader Planetarium. This innovative filter is designed to enhance your astronomical observation and imaging experience, providing a professional and secure solution for observing and imaging the Sun.The AstroSolar Telescope Filter is crafted with Baader AstroSolar Safety Film OD 5.0, a material renowned for its superior optical quality. Unlike many ready-made filters, this product does not stretch the filter material like a drumhead, which can compromise image quality. Instead, the AstroSolar film is mounted entirely stress-free, ensuring it performs like a high precision plane optical window. This durable filter features a clear white IR-rejecting front ring with reinforcing raised edges, designed to protect the solar filter material from contact with any sharp metal edge. The user-friendly design includes no-tool mounting and adjustment of the centering bolts to fit a wide variety of mechanical tube diameters. The filter also comes with non-rotating sliding fasteners made from aluminum that hold the centering bolts. These metal sliders are equipped with a machined indicator to point towards the adjustment index. Additional Phillips screws are integrated into the sliding fasteners, allowing the centering bolts to be firmly fastened with a screwdriver if preferred by the user.The AstroSolar Telescope Filter is designed with an index scale provided beside each adjustment slot, adjacent to each sliding fastener, for fast and repeatable adjustment of the filter cell onto different telescope tubes. Black sliding washers are supplied to securely cover the full length of the adjustment slots in the aluminum frame, blocking sunlight from passing through the filter cell beside the filter area.For added safety, the filter includes three security straps to secure the position of the filter cell with Velcro-adhesive pads. This ensures a secure fit in front of the telescope under any circumstances, such as a gust of wind. The AstroSolar Telescope Filter is safe for solar observation and photography with all high-end telescopes and extreme tele-lenses, making it suitable for the highest magnifications and detailed observation of individual sunspots. With its temperature compensated cell, the AstroSolar filter material retains its excellent optical quality at any temperature, be it -30Deg C or +50Deg C.In conclusion, the 140mm AstroSolar Telescope Filter from Baader Planetarium is an efficient and user-friendly tool for all your astronomical observation and imaging needs. It's not just a filter, it's a gateway to the cosmos.

How can you safely observe and capture the magnificence of the sun without compromising on image quality? The 130mm AstroSolar Spotting Scope Filter from Baader Planetarium is the professional-grade solution for solar enthusiasts and astrophotographers. This premium filter is meticulously crafted with Baader's original AstroSolar Safety Film (OD 5.0), ensuring that you experience the true optical quality of the diffraction-limited film, which is paramount for high-resolution solar observation and imaging.Unlike many ready-made filters that stretch the material taut, potentially degrading the image, the AstroSolar film in this filter is mounted entirely stress-free. This is essential for it to perform like a high-precision optical window. The slight ripples in the film are a hallmark of its superior design, allowing it to provide an uncompromised view of solar phenomena.The filter features a clear white IR-rejecting front ring with reinforced raised edges, expertly designed to prevent any contact between the delicate solar filter material and sharp metal edges. This thoughtful construction enhances the durability and longevity of the filter, making it a reliable choice for both amateur and professional astronomers.Installation is a breeze with no-tool mounting and easy adjustment of the centering bolts, which are designed to fit a wide range of mechanical tube diameters. The bolts can contact either the outside or, if appropriate, the inside of the optical instrument tube. Non-rotating aluminum sliding fasteners, equipped with machined indicators, ensure precise and repeatable alignment, while additional Phillips screws allow for a more permanent installation if desired.For added security, the filter includes three safety straps with Velcro-adhesive pads to ensure a secure fit in front of your telescope, even in windy conditions. The thoughtful inclusion of black sliding washers ensures that no stray sunlight passes through the filter cell outside the filtered area.Each filter is accompanied by a warning text printed on the front side, reminding users to read the instructions before use, emphasizing the commitment to safety. The filter comes packaged in a sturdy cardboard gift box, perfect for safe transportation or storage.The 130mm AstroSolar Spotting Scope Filter is part of a family of filters that offer a stable and rigid solution for all spotting scopes, tele-lenses, and amateur telescopes, supporting magnifications up to 120x. The filter material is mounted onto a plastic ring, which acts as a stabilizing element for the filter cell, and is then secured onto an aluminum front frame. The thermal expansion coefficients of the plastic and film are closely matched, ensuring the filter's performance remains consistent under varying temperatures.In summary, this filter provides safe solar observation and photography with all spotting scopes, amateur telescopes, and camera lenses. The package includes three centering bolts, safety straps, and...

An exceptional tool for astronomical observation, the 100mm AstroSolar Spotting Scope Filter is meticulously crafted by Baader Planetarium, a brand renowned for its high-quality astronomical equipment. This filter is designed with the AstroSolar Safety Film OD 5.0, a feature that has been perfected over 15 years to ensure the preservation of the true optical quality of the diffraction-limited AstroSolar Safety Film.Unlike many ready-made filters that stretch the filter material, compromising image quality, the AstroSolar Spotting Scope Filter is mounted stress-free, functioning like a high precision plane optical window. This unique design may show slight ripples, but it's a testament to the filter's superior performance and quality.The filter is cell mounted and quality inspected by skilled staff members, ensuring its durability and efficiency. It features a clear white IR-rejecting front ring with reinforcing raised edges, designed to protect the solar filter material from any sharp metal edges. The filter is designed for easy, no-tool mounting and adjustment of the centering bolts, making it compatible with a wide variety of mechanical tube diameters. The bolts are designed to contact the outside or, if appropriate, the inside of the optical instrument tube. The filter also includes non-rotating sliding fasteners made from aluminum that hold the centering bolts. These metal sliders are equipped with a machined indicator to point towards the adjustment index. Additional Phillips screws are integrated into the sliding fasteners, allowing the centering bolts to be firmly fastened with a screwdriver if preferred by the user. The filter comes with an index scale provided beside each adjustment slot, adjacent to each sliding fastener, for fast and repeatable adjustment of the filter cell onto different telescope tubes. Black sliding washers are supplied to securely cover the full length of the adjustment slots in the aluminum frame, blocking sunlight from passing through the filter cell beside the filter area. For added security, the filter includes three security straps to ensure a secure fit in front of the telescope under any circumstances, such as a gust of wind. The filter also comes with a warning text printed onto the front side of each filter cell, reminding users to read the instructions before use. The 100mm AstroSolar Spotting Scope Filter is perfect for safe solar observation and photography with all spotting scopes, amateur telescopes, and camera lenses. It offers a stable and rigid solution for all your astronomical needs, providing clear and high-quality images.