Astronomik CLS Clip-Filter EOS M APS-C (For Enhanced Spectrum Cameras)

$129.95
Unit price per

Delivery: Ships in 5 to 10 business days after the date of purchase.

Clip-Filter system for Canon EOS M APS-C Mirrorless cameras

Do you own a Canon EOS digital camera for astro-imaging? Then you have surely encountered the following problems:

Large filters for large camera lens objectives are very expensive
If you are using an Off-Axis Guider stars will be dimmed on your autoguiding camera when a 2" round mounted filter is threaded to a corrector being ahead of the reflecting prism from the light path.
With long exposure times your camera’s sensor chip is exposed to more dust

With the Astronomik Clip-Filter System you can take care of all of these problems at once!

The patented Astronomik Clip-Filter System is black anodized aluminum and laser-cut on state-of-the-art modern machines. It can be inserted within seconds directly into the EOS M camera body. There are no changes necessary and all lens functions (focus, screen, image stabilization) remain functional!

The clip filters for Canon EOS M Mirrorless cameras can be used with all lenses known till today with the EF-M Bayonet. With the adapter EF-M to EF/EF-S all Canon lenses and all lenses from other manufacturers with Canon Bayonet can be used. Of course, you may use the filters when the camera is attached to your scope too.

The filters are optimized to be used with normal lenses and with a telescope.

Use Astronomik filters for your EOS M and enjoy marvelous images with an ultra light equipment!

Description
Specifications
Compatibility
Reviews

Description

Astronomik CLS Clip-Filter EOS M APS-C (For Enhanced Spectrum Modified Cameras)

The Astronomik CLS is also a budget filter for visual observation, Black & White photography and CCD photographs of nebulae, galaxies and star clusters with astronomical instruments of any size.

The Astronomik CLS blocks the light of the spectral lines of mercury and sodium-vapor lamps and lets the largest part of the visible light and H-alpha emissions pass. All the important emission lines, as well as the spectral region that the very well dark adapted eye can see, can pass through the filter.

Main use

The filters are optimized for use with aperture ratios from 1:3 to 1:15. Transmission losses and chromatic distortions, which are problems with other filters, only appear with Astronomik filters when extremely bright aperture ratios of 1:2 and more are used. The CLS filter is suitable for use with telescopes of all aperture sizes.

Important: Full Spectrum modified cameras will need an additional IR-block-filter.

Hint for a very usefull accessory:

The EOS M, M10 and M3 are a little bit difficult to use for deep Astrophotography because any exposure time longer than 30sec can be done via pressing the exposure-button only, or via Infrared. (Up to 30sec can be set in the camera, but USB control for longer times does NOT work.) However all IR-Intervalometers we tried, do not work properly: When set to Bulb-Mode there are two IR-commands required, the first to open the shutter, the second one for closing it at the end of the exposure. All normal IR-Intervalometers do not handle that correct and a break of the length of the exposure time is the result. Good news: There is a device that handles it correct, the "SteveMRI MultiCam LEI Intervalometer" (http://stevemri.no-ip.co.uk/) changes the signal from a normal programmable intervallometer to proper IR-commands! At the beginning of the exposure a signal is sent to the camera, a second one when the exposure time has ended. With this device all features of a normal programmable timer (Time-to-start, length of exposure, break between exposures, number of exposures) can be fully used. If you have a advenced device for exposure-ramping even this will work: Simply plug the cable into the LEI Intervalometer and it will convert all signal to proper IR-Commands. (Direct Link to the MultiCam LEI Intervalometer)

Watch the following video to see how easy the clip filters can be used:

California Residents: Please check Proposition 65 Warning Website about significant exposures to chemicals that cause cancer, birth defects or other reproductive harm. https://www.p65warnings.ca.gov/

Specifications

Technical Data

92% transmission at 486nm (H-beta)
92% transmission at 496nm (OIII)
92% transmission at 501nm (OIII)
97% transmission at 656nm (H alpha)
pass from 450 to 540nm and beyond 650nm
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
Since 2008 we do ship filters with a completely new design. Any kind of halo or strange reflection is a matter of past

Compatibility

The filters can be used with Canon EOS M1, M10, M3, M5, M6, M6 MkII, M50, M50 MkII, M100 and M200 bodies. (We never got a M2 in Europe.)
The filters can be used with all EF-M lenses
The Clip filter may be used with all other Canon lenses. (Using the Canon adapter from EF-M to EF)
The Clip filter for Canon APS-C fit into the Original Canon Adapter from EF to EF-M bayonet

Reviews