Astronomik UHC XT Filter - Canon EOS APS-C Clip Filter
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The Astronomik UHC filter stands out as the first choice for visual observation, offering enhanced contrast and detail in deep-sky objects that surpasses other filters on the market. With its Ultra High Contrast (UHC) design, the filter allows nearly 100% transmission of OIII and H-beta lines, effectively eliminating scattered light from various sources, including light pollution. This results in a significant enhancement of detail for gaseous and planetary nebulae against the sky background.
Designed for versatility, the Astronomik UHC filter is effective in both urban and dark sky conditions, improving contrast for emission nebulae and other celestial objects for medium to large telescopes. It dramatically increases the visibility and detail of objects that are otherwise faint or obscured.
The filter's application spans aperture ratios from 1:3 to 1:15, suitable for a wide range of telescopes. Compared to filters from other manufacturers, the Astronomik UHC filter excels in revealing more stars and finer details in celestial objects, maintaining the sharpness and optical quality expected from high-performance astronomical instruments.
The filter works by blocking emission lines from high- and low-pressure sodium (Na)- and mercury (Hg)-vapor lamps and all lines of natural airglow, while allowing H-beta and OIII lines to pass through. This selective transmission enhances the contrast between the sky background and observed objects.
Additionally, the Astronomik UHC filter is recommended for observation of Jupiter's clouds and offers improved separation of double stars.
In summary, the Astronomik UHC filter is indispensable for astronomers seeking to maximize visual clarity and contrast in deep-sky observation, making it an essential tool for all deep-sky observers alike.
Alternatives
- For telescopes smaller than 5" (125mm), the Astronomik UHC-E filter with its wider pass band is more suitable.
- Telescopes with apertures exceeding 10" (250mm) may benefit from an Astronomik OIII visual filter as first filter.
Suitability of the Astronomik UHC filters
- Visual observation (dark skies): Very good, for telescopes of all aperture ratios
- Visual observation (urban skies): Very good, for telescopes from 4" (100mm) aperture
Clip-Filter for Canon EOS APS-C DSLR cameras
Since 2007, we offer our extremely popular Astronomik Clip-Filters. The complete range of Astronomik filters is available as Clip-Filters for the Canon EOS DSLR cameras with APS-C sensors.
The Astronomik Clip-Filters offer a number of practical advantages that make them an ideal choice for astrophotographers:
- Installing and removing the Astronomik Clip-Filter is very quick and easy and requires no extra tools or modifications to the camera body. They can be changed at any time, even at night.
- All lens functions, such as focus, aperture, and image stabilization remain fully functional.
- The Astronomik Clip-Filters are held securely in place without stressing the high-quality glass.
- The Astronomik Clip-Filters are designed and optimized for use with both standard camera lenses and telescopes.
Through the Astronomik Clip-Filters, we were able to solve several common issues faced by astrophotographers:
- Large filters for large camera lenses are very expensive.
- Using a filter holder between the camera body and the lens prevents focusing to infinity.
- For very fast telescopes (low f-number) like the Vixen R200SS or the Takahashi "Epsilon" astrograph, a filter drawer or filter wheel cannot be used because the distance to the corrector lenses would be changed.
- Long exposure times lead to dust settling on the camera's sensor chip.
The Astronomik EOS APS-C Clip-Filters are made from black anodized aluminum.
Additionally, all Astronomik EOS APS-C Clip-Filters serve as an excellent dust shield, protecting the sensor during long exposures. If you only need a dust shield without filtering effects, the Astronomik MC-Clear EOS APS-C Clip-Filter is the right choice.
Use Astronomik filters for your Canon EOS APS-C DSLR camera and enjoy marvelous images with an ultra light equipment!
Compatible Canon EOS APS-C DSLR cameras
| Model | Compatibility | |
|---|---|---|
| Canon EOS-1D (all variants) | No | |
| Canon EOS 5D (all variants) | No | |
| Canon EOS 7D | Yes | |
| Canon EOS 7D Mark II | Yes | |
| Canon EOS 20D | Yes | |
| Canon EOS 20Da | Yes | |
| Canon EOS 30D | Yes | |
| Canon EOS 40D | Yes | |
| Canon EOS 50D | Yes | |
| Canon EOS 60D | Yes | |
| Canon EOS 60Da | Yes | |
| Canon EOS 70D | Yes | |
| Canon EOS 77D | Yes | |
| Canon EOS 80D | Yes | |
| Canon EOS 90D | Yes | |
| Canon EOS 100D / Rebel SL1 / Kiss X7 | Yes | |
| Canon EOS 200D / Rebel SL2 / Kiss X9 | Yes | |
| Canon EOS 250D / Rebel SL3 / Kiss X10 | Yes | |
| Canon EOS 300D / Digital Rebel / Kiss Digital | Yes | |
| Canon EOS 350D / Digital Rebel XT / Kiss Digital N | Yes | |
| Canon EOS 400D / Digital Rebel XTi / Kiss Digital X | Yes | |
| Canon EOS 450D / Digital Rebel XSi / Kiss X2 | Yes | |
| Canon EOS 500D / Digital Rebel T1i / Kiss X3 | Yes | |
| Canon EOS 550D / Digital Rebel T2i / Kiss X4 | Yes | |
| Canon EOS 600D / Digital Rebel T3i / Kiss X5 | Yes | |
| Canon EOS 650D / Digital Rebel T4i / Kiss X6i | Yes | |
| Canon EOS 700D / Digital Rebel T5i / Kiss X7i | Yes | |
| Canon EOS 750D / Rebel T6i / Kiss X8i | Yes | |
| Canon EOS 760D / Rebel T6s / 8000D | Yes | |
| Canon EOS 800D / Rebel T7i / Kiss X9i | Yes | |
| Canon EOS 850D / Rebel T8i / Kiss X10i | Yes | |
| Canon EOS 1000D / Digital Rebel XS / Kiss F | Yes | |
| Canon EOS 1100D / Rebel T3 / Kiss X50 | Yes | |
| Canon EOS 1200D / Rebel T5 / Kiss X70 | Yes | |
| Canon EOS 1300D / Rebel T6 / Kiss X80 | Yes | |
| Canon EOS 1500D / 2000D / Rebel T7 / Kiss X90 | Yes | |
| Canon EOS 4000D / Rebel T100 / 3000D | Yes | |
| Canon cameras offered before 2003 | No |
The Astronomik EOS APS-C Clip-Filters fit into the original Canon EF to EF-M bayonet adapter and can be used with all variants of the Canon EOS M camera.
Compatible lenses and adapters
| Model | Compatibility |
|---|---|
| Original Canon EF-S series lenses | No |
| Lenses from third party manufacturers | Yes |
| M42 lens adapters | Yes |
| T2 lens adapters | Yes |
Astronomik XT-Filters
The new Astronomik XT-Filters are specifically designed for astrophotography with wide-angle lenses, delivering sharp and crisp star images all the way to the edges of the image.
Since many years, Astronomik Clip-Filters are a popular and well known tool among astrophotographers worldwide. However, when using very short focal length lenses to take widefield images, standard Clip-Filters could introduce aberrations, stretching stars in the outermost corners of the image. To solve this issue, the new Astronomik XT-Filters are coated on an extremely thin substrate of only 0.3mm or 0.5mm thickness, significantly reducing these aberrations.
Despite the reduced thickness, the Astronomik XT-Filters maintain the highest optical quality: they are finely polished, free of any striae, residual stresses, and bubbles, and are suitable for the most advanced imaging applications.
The Astronomik XT-Filters are manufactured using the same durable coating technology as all Astronomik filters. They are extremely scratch-resistant, unaffected by high humidity, and do not degrade over time. This ensures they retain their performance for years. As with all our filters, we underline this promise with a 10-year warranty.
Please note that not all Astronomik filters are available as XT-versions due to the complexity of manufacturing these ultra-thin filters. Currently, filters are produced that are predestined for photography with wide-angle lenses.
Technical Data
- Typical transmission of 95% at 486nm (H-beta)
- Typical transmission of 95% at 496nm and 501nm (OIII)
- Typical transmission of 95% at 656nm (H alpha)
- Transmission range: 480nm to 505nm and above 645nm
- Full-Width-Half Maximum (FWHM): 25nm
- Glass thickness: 1mm (except Astronomik OWB Type 3 and XT filters)
- Finely polished optical glass, free of any striae, residual stresses, and bubbles
- Extremely scratch-resistant and durable coating
- Completely resistant against high humidity and aging effects
- Parfocal with other Astronomik filters
- Diffraction-limited
- Optimized spectral windows
- Delivered in a high-quality, long-lasting filter box
Due to the high-precision machining of the carrier substrate, all Astronomik filters are parfocal with wedge errors far below all common tolerances. Astronomik filters are diffraction-limited, ensuring that the optical performance (resolution and contrast) of your telescope is not compromised. Issues concerning focal distances and the exact alignment of images from each color channel are therefore effectively eliminated.
All Astronomik filters are ideal for modern cameras, including both CMOS- and CCD-based models, ensuring you capture the best possible images with your equipment. Sharpness, contrast, and the absence of any reflections and halos are guaranteed. Even with bright stars in the field of view, nebulae and galaxies will be captured with the finest structures.
Every Astronomik filter undergoes a rigorous quality control process before delivery. Additionally, each Astronomik Narrowband-Emissionline filter is measured using a high-end PerkinElmer Spectrophotometer to ensure it meets the specifications published on our website. On the back of each Narrowband-Emissionline filter box, you will find a label detailing the precise spectral data for that specific filter, including the maximum transmission and the recommended range of focal ratios.
Other Information
- Country of Manufacture: Germany
The Astronomik UHC filter stands out as the first choice for visual observation, offering enhanced contrast and detail in deep-sky objects that surpasses other filters on the market. With its Ultra High Contrast (UHC) design, the filter allows nearly 100% transmission of OIII and H-beta lines, effectively eliminating scattered light from various sources, including light pollution. This results in a significant enhancement of detail for gaseous and planetary nebulae against the sky background.
Designed for versatility, the Astronomik UHC filter is effective in both urban and dark sky conditions, improving contrast for emission nebulae and other celestial objects for medium to large telescopes. It dramatically increases the visibility and detail of objects that are otherwise faint or obscured.
The filter's application spans aperture ratios from 1:3 to 1:15, suitable for a wide range of telescopes. Compared to filters from other manufacturers, the Astronomik UHC filter excels in revealing more stars and finer details in celestial objects, maintaining the sharpness and optical quality expected from high-performance astronomical instruments.
The filter works by blocking emission lines from high- and low-pressure sodium (Na)- and mercury (Hg)-vapor lamps and all lines of natural airglow, while allowing H-beta and OIII lines to pass through. This selective transmission enhances the contrast between the sky background and observed objects.
Additionally, the Astronomik UHC filter is recommended for observation of Jupiter's clouds and offers improved separation of double stars.
In summary, the Astronomik UHC filter is indispensable for astronomers seeking to maximize visual clarity and contrast in deep-sky observation, making it an essential tool for all deep-sky observers alike.
Alternatives
- For telescopes smaller than 5" (125mm), the Astronomik UHC-E filter with its wider pass band is more suitable.
- Telescopes with apertures exceeding 10" (250mm) may benefit from an Astronomik OIII visual filter as first filter.
Suitability of the Astronomik UHC filters
- Visual observation (dark skies): Very good, for telescopes of all aperture ratios
- Visual observation (urban skies): Very good, for telescopes from 4" (100mm) aperture
Clip-Filter for Canon EOS APS-C DSLR cameras
Since 2007, we offer our extremely popular Astronomik Clip-Filters. The complete range of Astronomik filters is available as Clip-Filters for the Canon EOS DSLR cameras with APS-C sensors.
The Astronomik Clip-Filters offer a number of practical advantages that make them an ideal choice for astrophotographers:
- Installing and removing the Astronomik Clip-Filter is very quick and easy and requires no extra tools or modifications to the camera body. They can be changed at any time, even at night.
- All lens functions, such as focus, aperture, and image stabilization remain fully functional.
- The Astronomik Clip-Filters are held securely in place without stressing the high-quality glass.
- The Astronomik Clip-Filters are designed and optimized for use with both standard camera lenses and telescopes.
Through the Astronomik Clip-Filters, we were able to solve several common issues faced by astrophotographers:
- Large filters for large camera lenses are very expensive.
- Using a filter holder between the camera body and the lens prevents focusing to infinity.
- For very fast telescopes (low f-number) like the Vixen R200SS or the Takahashi "Epsilon" astrograph, a filter drawer or filter wheel cannot be used because the distance to the corrector lenses would be changed.
- Long exposure times lead to dust settling on the camera's sensor chip.
The Astronomik EOS APS-C Clip-Filters are made from black anodized aluminum.
Additionally, all Astronomik EOS APS-C Clip-Filters serve as an excellent dust shield, protecting the sensor during long exposures. If you only need a dust shield without filtering effects, the Astronomik MC-Clear EOS APS-C Clip-Filter is the right choice.
Use Astronomik filters for your Canon EOS APS-C DSLR camera and enjoy marvelous images with an ultra light equipment!
Compatible Canon EOS APS-C DSLR cameras
| Model | Compatibility | |
|---|---|---|
| Canon EOS-1D (all variants) | No | |
| Canon EOS 5D (all variants) | No | |
| Canon EOS 7D | Yes | |
| Canon EOS 7D Mark II | Yes | |
| Canon EOS 20D | Yes | |
| Canon EOS 20Da | Yes | |
| Canon EOS 30D | Yes | |
| Canon EOS 40D | Yes | |
| Canon EOS 50D | Yes | |
| Canon EOS 60D | Yes | |
| Canon EOS 60Da | Yes | |
| Canon EOS 70D | Yes | |
| Canon EOS 77D | Yes | |
| Canon EOS 80D | Yes | |
| Canon EOS 90D | Yes | |
| Canon EOS 100D / Rebel SL1 / Kiss X7 | Yes | |
| Canon EOS 200D / Rebel SL2 / Kiss X9 | Yes | |
| Canon EOS 250D / Rebel SL3 / Kiss X10 | Yes | |
| Canon EOS 300D / Digital Rebel / Kiss Digital | Yes | |
| Canon EOS 350D / Digital Rebel XT / Kiss Digital N | Yes | |
| Canon EOS 400D / Digital Rebel XTi / Kiss Digital X | Yes | |
| Canon EOS 450D / Digital Rebel XSi / Kiss X2 | Yes | |
| Canon EOS 500D / Digital Rebel T1i / Kiss X3 | Yes | |
| Canon EOS 550D / Digital Rebel T2i / Kiss X4 | Yes | |
| Canon EOS 600D / Digital Rebel T3i / Kiss X5 | Yes | |
| Canon EOS 650D / Digital Rebel T4i / Kiss X6i | Yes | |
| Canon EOS 700D / Digital Rebel T5i / Kiss X7i | Yes | |
| Canon EOS 750D / Rebel T6i / Kiss X8i | Yes | |
| Canon EOS 760D / Rebel T6s / 8000D | Yes | |
| Canon EOS 800D / Rebel T7i / Kiss X9i | Yes | |
| Canon EOS 850D / Rebel T8i / Kiss X10i | Yes | |
| Canon EOS 1000D / Digital Rebel XS / Kiss F | Yes | |
| Canon EOS 1100D / Rebel T3 / Kiss X50 | Yes | |
| Canon EOS 1200D / Rebel T5 / Kiss X70 | Yes | |
| Canon EOS 1300D / Rebel T6 / Kiss X80 | Yes | |
| Canon EOS 1500D / 2000D / Rebel T7 / Kiss X90 | Yes | |
| Canon EOS 4000D / Rebel T100 / 3000D | Yes | |
| Canon cameras offered before 2003 | No |
The Astronomik EOS APS-C Clip-Filters fit into the original Canon EF to EF-M bayonet adapter and can be used with all variants of the Canon EOS M camera.
Compatible lenses and adapters
| Model | Compatibility |
|---|---|
| Original Canon EF-S series lenses | No |
| Lenses from third party manufacturers | Yes |
| M42 lens adapters | Yes |
| T2 lens adapters | Yes |
Astronomik XT-Filters
The new Astronomik XT-Filters are specifically designed for astrophotography with wide-angle lenses, delivering sharp and crisp star images all the way to the edges of the image.
Since many years, Astronomik Clip-Filters are a popular and well known tool among astrophotographers worldwide. However, when using very short focal length lenses to take widefield images, standard Clip-Filters could introduce aberrations, stretching stars in the outermost corners of the image. To solve this issue, the new Astronomik XT-Filters are coated on an extremely thin substrate of only 0.3mm or 0.5mm thickness, significantly reducing these aberrations.
Despite the reduced thickness, the Astronomik XT-Filters maintain the highest optical quality: they are finely polished, free of any striae, residual stresses, and bubbles, and are suitable for the most advanced imaging applications.
The Astronomik XT-Filters are manufactured using the same durable coating technology as all Astronomik filters. They are extremely scratch-resistant, unaffected by high humidity, and do not degrade over time. This ensures they retain their performance for years. As with all our filters, we underline this promise with a 10-year warranty.
Please note that not all Astronomik filters are available as XT-versions due to the complexity of manufacturing these ultra-thin filters. Currently, filters are produced that are predestined for photography with wide-angle lenses.
Technical Data
- Typical transmission of 95% at 486nm (H-beta)
- Typical transmission of 95% at 496nm and 501nm (OIII)
- Typical transmission of 95% at 656nm (H alpha)
- Transmission range: 480nm to 505nm and above 645nm
- Full-Width-Half Maximum (FWHM): 25nm
- Glass thickness: 1mm (except Astronomik OWB Type 3 and XT filters)
- Finely polished optical glass, free of any striae, residual stresses, and bubbles
- Extremely scratch-resistant and durable coating
- Completely resistant against high humidity and aging effects
- Parfocal with other Astronomik filters
- Diffraction-limited
- Optimized spectral windows
- Delivered in a high-quality, long-lasting filter box
Due to the high-precision machining of the carrier substrate, all Astronomik filters are parfocal with wedge errors far below all common tolerances. Astronomik filters are diffraction-limited, ensuring that the optical performance (resolution and contrast) of your telescope is not compromised. Issues concerning focal distances and the exact alignment of images from each color channel are therefore effectively eliminated.
All Astronomik filters are ideal for modern cameras, including both CMOS- and CCD-based models, ensuring you capture the best possible images with your equipment. Sharpness, contrast, and the absence of any reflections and halos are guaranteed. Even with bright stars in the field of view, nebulae and galaxies will be captured with the finest structures.
Every Astronomik filter undergoes a rigorous quality control process before delivery. Additionally, each Astronomik Narrowband-Emissionline filter is measured using a high-end PerkinElmer Spectrophotometer to ensure it meets the specifications published on our website. On the back of each Narrowband-Emissionline filter box, you will find a label detailing the precise spectral data for that specific filter, including the maximum transmission and the recommended range of focal ratios.
The Astronomik UHC filter stands out as the first choice for visual observation, offering enhanced contrast and detail in deep-sky objects that surpasses other filters on the market. With its Ultra High Contrast (UHC) design, the filter allows nearly 100% transmission of OIII and H-beta lines, effectively eliminating scattered light from various sources, including light pollution. This results in a significant enhancement of detail for gaseous and planetary nebulae against the sky background.
Designed for versatility, the Astronomik UHC filter is effective in both urban and dark sky conditions, improving contrast for emission nebulae and other celestial objects for medium to large telescopes. It dramatically increases the visibility and detail of objects that are otherwise faint or obscured.
The filter's application spans aperture ratios from 1:3 to 1:15, suitable for a wide range of telescopes. Compared to filters from other manufacturers, the Astronomik UHC filter excels in revealing more stars and finer details in celestial objects, maintaining the sharpness and optical quality expected from high-performance astronomical instruments.
The filter works by blocking emission lines from high- and low-pressure sodium (Na)- and mercury (Hg)-vapor lamps and all lines of natural airglow, while allowing H-beta and OIII lines to pass through. This selective transmission enhances the contrast between the sky background and observed objects.
Additionally, the Astronomik UHC filter is recommended for observation of Jupiter's clouds and offers improved separation of double stars.
In summary, the Astronomik UHC filter is indispensable for astronomers seeking to maximize visual clarity and contrast in deep-sky observation, making it an essential tool for all deep-sky observers alike.
Alternatives
- For telescopes smaller than 5" (125mm), the Astronomik UHC-E filter with its wider pass band is more suitable.
- Telescopes with apertures exceeding 10" (250mm) may benefit from an Astronomik OIII visual filter as first filter.
Suitability of the Astronomik UHC filters
- Visual observation (dark skies): Very good, for telescopes of all aperture ratios
- Visual observation (urban skies): Very good, for telescopes from 4" (100mm) aperture
Clip-Filter for Canon EOS APS-C DSLR cameras
Since 2007, we offer our extremely popular Astronomik Clip-Filters. The complete range of Astronomik filters is available as Clip-Filters for the Canon EOS DSLR cameras with APS-C sensors.
The Astronomik Clip-Filters offer a number of practical advantages that make them an ideal choice for astrophotographers:
- Installing and removing the Astronomik Clip-Filter is very quick and easy and requires no extra tools or modifications to the camera body. They can be changed at any time, even at night.
- All lens functions, such as focus, aperture, and image stabilization remain fully functional.
- The Astronomik Clip-Filters are held securely in place without stressing the high-quality glass.
- The Astronomik Clip-Filters are designed and optimized for use with both standard camera lenses and telescopes.
Through the Astronomik Clip-Filters, we were able to solve several common issues faced by astrophotographers:
- Large filters for large camera lenses are very expensive.
- Using a filter holder between the camera body and the lens prevents focusing to infinity.
- For very fast telescopes (low f-number) like the Vixen R200SS or the Takahashi "Epsilon" astrograph, a filter drawer or filter wheel cannot be used because the distance to the corrector lenses would be changed.
- Long exposure times lead to dust settling on the camera's sensor chip.
The Astronomik EOS APS-C Clip-Filters are made from black anodized aluminum.
Additionally, all Astronomik EOS APS-C Clip-Filters serve as an excellent dust shield, protecting the sensor during long exposures. If you only need a dust shield without filtering effects, the Astronomik MC-Clear EOS APS-C Clip-Filter is the right choice.
Use Astronomik filters for your Canon EOS APS-C DSLR camera and enjoy marvelous images with an ultra light equipment!
Compatible Canon EOS APS-C DSLR cameras
| Model | Compatibility | |
|---|---|---|
| Canon EOS-1D (all variants) | No | |
| Canon EOS 5D (all variants) | No | |
| Canon EOS 7D | Yes | |
| Canon EOS 7D Mark II | Yes | |
| Canon EOS 20D | Yes | |
| Canon EOS 20Da | Yes | |
| Canon EOS 30D | Yes | |
| Canon EOS 40D | Yes | |
| Canon EOS 50D | Yes | |
| Canon EOS 60D | Yes | |
| Canon EOS 60Da | Yes | |
| Canon EOS 70D | Yes | |
| Canon EOS 77D | Yes | |
| Canon EOS 80D | Yes | |
| Canon EOS 90D | Yes | |
| Canon EOS 100D / Rebel SL1 / Kiss X7 | Yes | |
| Canon EOS 200D / Rebel SL2 / Kiss X9 | Yes | |
| Canon EOS 250D / Rebel SL3 / Kiss X10 | Yes | |
| Canon EOS 300D / Digital Rebel / Kiss Digital | Yes | |
| Canon EOS 350D / Digital Rebel XT / Kiss Digital N | Yes | |
| Canon EOS 400D / Digital Rebel XTi / Kiss Digital X | Yes | |
| Canon EOS 450D / Digital Rebel XSi / Kiss X2 | Yes | |
| Canon EOS 500D / Digital Rebel T1i / Kiss X3 | Yes | |
| Canon EOS 550D / Digital Rebel T2i / Kiss X4 | Yes | |
| Canon EOS 600D / Digital Rebel T3i / Kiss X5 | Yes | |
| Canon EOS 650D / Digital Rebel T4i / Kiss X6i | Yes | |
| Canon EOS 700D / Digital Rebel T5i / Kiss X7i | Yes | |
| Canon EOS 750D / Rebel T6i / Kiss X8i | Yes | |
| Canon EOS 760D / Rebel T6s / 8000D | Yes | |
| Canon EOS 800D / Rebel T7i / Kiss X9i | Yes | |
| Canon EOS 850D / Rebel T8i / Kiss X10i | Yes | |
| Canon EOS 1000D / Digital Rebel XS / Kiss F | Yes | |
| Canon EOS 1100D / Rebel T3 / Kiss X50 | Yes | |
| Canon EOS 1200D / Rebel T5 / Kiss X70 | Yes | |
| Canon EOS 1300D / Rebel T6 / Kiss X80 | Yes | |
| Canon EOS 1500D / 2000D / Rebel T7 / Kiss X90 | Yes | |
| Canon EOS 4000D / Rebel T100 / 3000D | Yes | |
| Canon cameras offered before 2003 | No |
The Astronomik EOS APS-C Clip-Filters fit into the original Canon EF to EF-M bayonet adapter and can be used with all variants of the Canon EOS M camera.
Compatible lenses and adapters
| Model | Compatibility |
|---|---|
| Original Canon EF-S series lenses | No |
| Lenses from third party manufacturers | Yes |
| M42 lens adapters | Yes |
| T2 lens adapters | Yes |
Astronomik XT-Filters
The new Astronomik XT-Filters are specifically designed for astrophotography with wide-angle lenses, delivering sharp and crisp star images all the way to the edges of the image.
Since many years, Astronomik Clip-Filters are a popular and well known tool among astrophotographers worldwide. However, when using very short focal length lenses to take widefield images, standard Clip-Filters could introduce aberrations, stretching stars in the outermost corners of the image. To solve this issue, the new Astronomik XT-Filters are coated on an extremely thin substrate of only 0.3mm or 0.5mm thickness, significantly reducing these aberrations.
Despite the reduced thickness, the Astronomik XT-Filters maintain the highest optical quality: they are finely polished, free of any striae, residual stresses, and bubbles, and are suitable for the most advanced imaging applications.
The Astronomik XT-Filters are manufactured using the same durable coating technology as all Astronomik filters. They are extremely scratch-resistant, unaffected by high humidity, and do not degrade over time. This ensures they retain their performance for years. As with all our filters, we underline this promise with a 10-year warranty.
Please note that not all Astronomik filters are available as XT-versions due to the complexity of manufacturing these ultra-thin filters. Currently, filters are produced that are predestined for photography with wide-angle lenses.
Technical Data
- Typical transmission of 95% at 486nm (H-beta)
- Typical transmission of 95% at 496nm and 501nm (OIII)
- Typical transmission of 95% at 656nm (H alpha)
- Transmission range: 480nm to 505nm and above 645nm
- Full-Width-Half Maximum (FWHM): 25nm
- Glass thickness: 1mm (except Astronomik OWB Type 3 and XT filters)
- Finely polished optical glass, free of any striae, residual stresses, and bubbles
- Extremely scratch-resistant and durable coating
- Completely resistant against high humidity and aging effects
- Parfocal with other Astronomik filters
- Diffraction-limited
- Optimized spectral windows
- Delivered in a high-quality, long-lasting filter box
Due to the high-precision machining of the carrier substrate, all Astronomik filters are parfocal with wedge errors far below all common tolerances. Astronomik filters are diffraction-limited, ensuring that the optical performance (resolution and contrast) of your telescope is not compromised. Issues concerning focal distances and the exact alignment of images from each color channel are therefore effectively eliminated.
All Astronomik filters are ideal for modern cameras, including both CMOS- and CCD-based models, ensuring you capture the best possible images with your equipment. Sharpness, contrast, and the absence of any reflections and halos are guaranteed. Even with bright stars in the field of view, nebulae and galaxies will be captured with the finest structures.
Every Astronomik filter undergoes a rigorous quality control process before delivery. Additionally, each Astronomik Narrowband-Emissionline filter is measured using a high-end PerkinElmer Spectrophotometer to ensure it meets the specifications published on our website. On the back of each Narrowband-Emissionline filter box, you will find a label detailing the precise spectral data for that specific filter, including the maximum transmission and the recommended range of focal ratios.
Other Information
- Country of Manufacture: Germany
| Product Status | new |
|---|---|
| Free Shipping Graphic | Free US Shipping |
| Hide Found a better Shipped Price on Frontend? | No |
Astronomik UHC XT Filter - Canon EOS APS-C Clip Filter