Astronomik UHC Clip-Filter EOS R XL

Clip-Filters for mirrorless Canon Full-Format Cameras EOS R and RP

These Clip-Filters can be installed with your fingers only. Mounting and removing the Clip-Filter is quick and easy. It can be done at any time. No modifiations to the body are necessary to use the Clip-Filters.*

Compatible Canon EOS Bodies

Note: These Clip filters are NOT compatible with this lens: Canon RF 35mm f/1.8 IS MACRO

If you are new to astrophotography and looking for your first filter: We do recommend getting the Astronomik CLS!
The CLS gives you maximum contrast due to it effective surpression of artifical light pollution, but still gives you neutral and well balanced colors. With the Astronomik CLS you can do very deep images of amazing quality even form a urben/suburban observing site!
For the advanced Astrophotographer we do offer a wide selection of filters: Perfect accessories for all kinds of astrophotography. To compile a usefull selection of filters for your obeserving goals we would be happy to give you advise, either via phone or eMail.

The full range of Astronomik filters is available as Clip-Filters for EOS R and EOS RP bodies now.

* You might want to modify your camera to get a maximum sensetivity at H-alpha and SII for Astrophotography. But this has nothing to do with the Clip-Filters! You may use the Clip-Filters without any modifications to the body. (But some filters like H-alpha and SII-CCD might not make sense with an unmodified camera.)

Please note that Canons Astro-Version "Ra" of the R-body shows strong halos around brighter stars! (Even without any filter) We highly recommend NOT to get a Ra!

Mounting the Astronomik EOS R Clip-Filter:

Mounting the Astronomik EOS R Clip Filter is very easy: You don't need any tools and filters may be changed even at night without any problems.
Remove the lens and take the Clip Filter from it? box. Slide the Clip-Filter into the body and press it in with two fingers, until it rests flush. Re-install the lens. -Your camera is ready for imaging!

Removing the Astronomik EOS R Clip-Filter:

Removing the Astronomik EOS R Clip-Filter is very simple too: Pull the filter out with the supplied tool, get the filter with two fingers and put it into it´s storage box. -Done within seconds and the camera is working as before.

The Astronomik UHC is THE filter for visual observing.

You will enjoy using your Astronomik UHC filter because you will see more stars and more details in deep-sky-objects compared to using filters from all other manufacturers.

The Astronomik UHC (Ultra High Contrast) filter allows the transmission of nearly 100% of the radiation from both O-III and the H beta lines. Though the second window for the H-alpha-line is not intended for visual observing, it is important, if the filter is used with an electronic device. All annoying, scattered light from other wavelength sources, including local artificial light pollution, is reliably filtered out. With this strong blocking of the sky background an unexpected wealth of detail becomes visible for gas nebulae and planetary nebulae.

Main use

Astronomik UHC filters astounding high light transmission brings better views of deep-sky-objects even to small telescopes! The high transmission of our optical glass filters means that enough light is available to allow successful visual observations with telescopes beginning at 2" (50mm) aperture. Our Astronomik filters are optimized for use with telescope focal length f / ratios of f/4 to f/15. Transmission losses and chromatic distortions, which arise with other filters, only occur with Astronomik filters when extremely bright aperture ratios of 1:2 and more come into play. Another major advantage of our Astronomik UHC filter is the high optical quality of the filter glass. When using Astronomik UHC filters you will quickly notice the same needle-sharp stars which you are familiar with from your astronomical instrument without any filter!

Suitability

• Visual observation (dark skies): Very good, for telescopes of all apertures and high exit pupil
• Visual observation (urban skies): Very good, for telescops from 100 mm aperture
• Film photography: Reasonable, but very long exposure time
• CCD photography: Good, when used with an additional IR-block-filter
• DSLR photography (original): Good, colour balance shifted but contrast enhanced
• DSLR photography (astro modified): Very good, colour balance is near perfect
• DSLR photography (MC modified): Good, when used with an additional IR-block-filter
• Webcam / Video (Planets): Unsuitable
• Webcam / Video (Deep Sky): Good, if light pollution is a big problem

Technical Data

• typ. 97% transmission at 486nm (H-beta)
• typ. 97% transmission at 496nm (OIII)
• typ. 97% transmission at 501nm (OIII)
• typ. 97% transmission at 656nm (H alpha)
• optimum position of transmission for telescopes with focal ratios from f/10 to f/3,5
• Entire Blocking of annoying wavelengths
• Ideal All-round Deep Sky filter even for small telescopes
• Not sensitive to humidity or aging
• Scratch-resistant!
• Excellent carrier material. The optical performance of your telescope is not reduced by the filter in any way.
• Parfocal with other Astronomik filters
• Glass thickness: 1mm
• Completely resistant against high humidity, scratches and aging effects
• Diffraction limited, the filter will not reduce the optical performance of your telescope!
• Astronomik filters are delivered in a high-quality, long lasting, filter box