Astronomik ProPlanet 642 BP XT IR-Pass Filter - Sony Alpha 7 Clip Filter
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The Astronomik ProPlanet 642 BP filter is the latest addition to the Astronomik ProPlanet infrared (IR)-pass filter series. This filter stands out for its versatility in daylight IR-photography, high-resolution lunar and planetary imaging, and deep-sky astrophotography of H-alpha nebulae.
"BP" stands for "Bandpass", indicating that the filter operates within a 200nm spectral window from 642nm to 842nm. In contrast to the other two Astronomik ProPlanet filters, it blocks the longer IR wavelengths. Together with the Astronomik ProPlanet 742 and ProPlanet 807 filters, you now have three choices to suit your IR imaging needs.
Highlight of the Astronomik ProPlanet 642 BP filter: Three filter in one!
The highlight of the Astronomik ProPlanet 642 BP filter is its three-in-one functionality. Depending on the camera used, it serves as an excellent tool for daylight IR-photography, reducing seeing effects and enhancing contrast for lunar and planetary imaging. Additionally, it is an affordable H-alpha filter for those beginning deep-sky astrophotography of H-alpha regions. Extensive testing and development have ensured that this filter performs these tasks optimally, delivering stunning images.
1) Daylight IR-photography
- Contrast-rich images with great color rendition
- Clear "Wood-Effect" images
- No hot spots from longer IR
- Short exposure times, similar to normal VIS-imaging
- Perfect choice for IR-videos
2) High-resolution lunar and planetary imaging
- Short exposure times
- Effective reduction of seeing (air turbulence)
- Enhanced contrast in the red area
- No ghost images and best sharpness due to blocking longer IR
3) Deep-sky astrophotography of H-alpha nebulae
- Maximal transmission of the H-alpha line at 656nm
- About 40nm Full-Width-Half Maximum (FWHM) with astro-modified DSLRs
- Amazing contrast under light-polluted skies or moonlight
- Low-priced filter for getting started in H-alpha imaging
- Easy focusing using the camera display plus LiveView
Guiding for Astrophotography
Installing the Astronomik ProPlanet 642 BP filter in front of your autoguider camera dramatically improves guiding quality by minimizing image motion from one frame to the next.
Clip-Filters for Sony Alpha 7 and Alpha 9 cameras
Since 2007, we have offered our extremely popular Astronomik Clip-Filters. The complete range of Astronomik filters is available as Clip-Filters for the Sony Alpha 7 and Alpha 9 cameras.
- 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.
Due to the very tight Sony bayonet and the limited space inside the camera, the Astronomik Sony Alpha 7 Clip-Filters cause a minimal obstruction in the corners. But this can be easily corrected by flatfielding.
Additionally, all Astronomik Sony Alpha 7 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 Sony Alpha 7 Clip-Filter is the right choice.
Use Astronomik filters for your Sony Alpha 7 or Alpha 9 camera and enjoy marvelous images with ultra-light equipment!
Compatible Sony Alpha Cameras
| Model | Compatibility |
|---|---|
| Sony Alpha 7 | Yes |
| Sony Alpha 7 Mk II | Yes |
| Sony Alpha 7 Mk III | Yes |
| Sony Alpha 7 Mk IV | Yes |
| Sony Alpha 7C | Yes |
| Sony Alpha 7C Mk II | Yes |
| Sony Alpha 7CR | Yes |
| Sony Alpha 7R | Yes |
| Sony Alpha 7R Mk II | Yes |
| Sony Alpha 7R Mk III | Yes |
| Sony Alpha 7R Mk IV | Yes |
| Sony Alpha 7R Mk V | Yes |
| Sony Alpha 7S | Yes |
| Sony Alpha 7S Mk II | Yes |
| Sony Alpha 7S Mk III | Yes |
| Sony Alpha 9 | Yes |
| Sony Alpha 9 Mk II | Yes |
| Sony Alpha 9 Mk III | Yes |
| Sony Alpha 58 | No |
| Sony Alpha 68 | No |
| Sony Alpha 77 (all variants) | No |
| Sony Alpha 99 (all variants) | No |
| Sony Alpha 6000 | No |
| Sony DSLR cameras with A-bayonet | No |
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
- More than 95% transmission for wavelengths between 642nm and 840nm
- Blocking of wavelengths between 350nm and 630nm
- 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. The Astronomik MFR coating is designed for optimal performance across a wide range of focal ratios of the optics used.
Every Astronomik filter undergoes a rigorous quality control process before delivery.
| Product Banner Type | new |
|---|---|
| Free Shipping Graphic | Free US Shipping |
| Hide Found a better Shipped Price on Frontend? | No |
The Astronomik ProPlanet 642 BP filter is the latest addition to the Astronomik ProPlanet infrared (IR)-pass filter series. This filter stands out for its versatility in daylight IR-photography, high-resolution lunar and planetary imaging, and deep-sky astrophotography of H-alpha nebulae.
"BP" stands for "Bandpass", indicating that the filter operates within a 200nm spectral window from 642nm to 842nm. In contrast to the other two Astronomik ProPlanet filters, it blocks the longer IR wavelengths. Together with the Astronomik ProPlanet 742 and ProPlanet 807 filters, you now have three choices to suit your IR imaging needs.
Highlight of the Astronomik ProPlanet 642 BP filter: Three filter in one!
The highlight of the Astronomik ProPlanet 642 BP filter is its three-in-one functionality. Depending on the camera used, it serves as an excellent tool for daylight IR-photography, reducing seeing effects and enhancing contrast for lunar and planetary imaging. Additionally, it is an affordable H-alpha filter for those beginning deep-sky astrophotography of H-alpha regions. Extensive testing and development have ensured that this filter performs these tasks optimally, delivering stunning images.
1) Daylight IR-photography
- Contrast-rich images with great color rendition
- Clear "Wood-Effect" images
- No hot spots from longer IR
- Short exposure times, similar to normal VIS-imaging
- Perfect choice for IR-videos
2) High-resolution lunar and planetary imaging
- Short exposure times
- Effective reduction of seeing (air turbulence)
- Enhanced contrast in the red area
- No ghost images and best sharpness due to blocking longer IR
3) Deep-sky astrophotography of H-alpha nebulae
- Maximal transmission of the H-alpha line at 656nm
- About 40nm Full-Width-Half Maximum (FWHM) with astro-modified DSLRs
- Amazing contrast under light-polluted skies or moonlight
- Low-priced filter for getting started in H-alpha imaging
- Easy focusing using the camera display plus LiveView
Guiding for Astrophotography
Installing the Astronomik ProPlanet 642 BP filter in front of your autoguider camera dramatically improves guiding quality by minimizing image motion from one frame to the next.
Clip-Filters for Sony Alpha 7 and Alpha 9 cameras
Since 2007, we have offered our extremely popular Astronomik Clip-Filters. The complete range of Astronomik filters is available as Clip-Filters for the Sony Alpha 7 and Alpha 9 cameras.
- 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.
Due to the very tight Sony bayonet and the limited space inside the camera, the Astronomik Sony Alpha 7 Clip-Filters cause a minimal obstruction in the corners. But this can be easily corrected by flatfielding.
Additionally, all Astronomik Sony Alpha 7 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 Sony Alpha 7 Clip-Filter is the right choice.
Use Astronomik filters for your Sony Alpha 7 or Alpha 9 camera and enjoy marvelous images with ultra-light equipment!
Compatible Sony Alpha Cameras
| Model | Compatibility |
|---|---|
| Sony Alpha 7 | Yes |
| Sony Alpha 7 Mk II | Yes |
| Sony Alpha 7 Mk III | Yes |
| Sony Alpha 7 Mk IV | Yes |
| Sony Alpha 7C | Yes |
| Sony Alpha 7C Mk II | Yes |
| Sony Alpha 7CR | Yes |
| Sony Alpha 7R | Yes |
| Sony Alpha 7R Mk II | Yes |
| Sony Alpha 7R Mk III | Yes |
| Sony Alpha 7R Mk IV | Yes |
| Sony Alpha 7R Mk V | Yes |
| Sony Alpha 7S | Yes |
| Sony Alpha 7S Mk II | Yes |
| Sony Alpha 7S Mk III | Yes |
| Sony Alpha 9 | Yes |
| Sony Alpha 9 Mk II | Yes |
| Sony Alpha 9 Mk III | Yes |
| Sony Alpha 58 | No |
| Sony Alpha 68 | No |
| Sony Alpha 77 (all variants) | No |
| Sony Alpha 99 (all variants) | No |
| Sony Alpha 6000 | No |
| Sony DSLR cameras with A-bayonet | No |
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
- More than 95% transmission for wavelengths between 642nm and 840nm
- Blocking of wavelengths between 350nm and 630nm
- 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. The Astronomik MFR coating is designed for optimal performance across a wide range of focal ratios of the optics used.
Every Astronomik filter undergoes a rigorous quality control process before delivery.
| Product Banner Type | new |
|---|---|
| Free Shipping Graphic | Free US Shipping |
| Hide Found a better Shipped Price on Frontend? | No |
Astronomik ProPlanet 642 BP XT IR-Pass Filter - Sony Alpha 7 Clip Filter