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Astronomik OWB CCD Typ 3 Clip-Filter Canon EOS XL

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in In stock (2)
0.30 kg
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including VAT 20.00 % ( £26.00 )

Astronomik OWB-CCD TYP 3 Clip Filter for Modified Canon EOS FULL FRAME Cameras for Terrestrial Photography
Mounted filter in EOS XL Clip-cell

The OWB filter would usually not be designated as an "astronomical" filter. The intention is to enable converted DSLR cameras (without inbuilt IR-filter) in order to be used for 'terrestrial' photography.

Astronomik have re-designed all of their photographic filters. Since the end of 2008 they are shipping the new "Halo-Free" filters. 

The OWB (Original White Balance) filter shifts the complete spectrum of a converted DSLR in such a manner that the camera will not be exclusively usable for astro-photography. Therefore the decision, which in former times had to be made, whether to 'victimize' a DSLR in order to exclusively use it for astronomical tasks or accept the lower sensitivity on the red end of the spectrum it is now a thing of the past and disencumber your purse, too.

The OWB EOS Clip filter has been designed for FULL FRAME CANON EOS cameras.


Canon Full-Format Cameras 5D Mk II, 5D Mk III and 6D. 
5D Mk I will work without LiveView only.

6D MkII will not work with XL Clip-filters.
Please note that the XL-Clip filters will not work with the Canon 5DS, 5DSR, and the 5D Mk IV.

Main use

DSLR cameras which have been converted for astronomical use by removing the inbuilt IR-filter or by substituting it with a filter with greater range for H-alpha, have a white balance that made them unable for 'terrestrial' purpose. The spectral sensitivity of the DSLR will be changed by an OWB-Filter to the former range. In other words: The OWB pretend to be the conventional built-in filter!

Other uses

  • None


  • Visual observation (dark skies): Unsuitable
  • Visual observation (urban skies): Unsuitable
  • Film photography: Unsuitable
  • CCD photography: Unsuitable
  • DSLR photography (original): Unsuitable
  • DSLR photography (astro modified): Very good, achieves a standard white balance for 'terrestrial' photography
  • DSLR photography (MC modified): Very good, achieves a standard white balance for 'terrestrial' photography
  • Webcam / Video (Planets): Unsuitable
  • Webcam / Video (Deep Sky): Unsuitable

Technical Data

  • Special spectrum in order to adapt modified DSLR cameras (removed or substituted inbuilt IR-filter) to achieve standard colour space in digital imaging.
  • Glass thickness: 1 mm
  • Parfocal with other Astronomik filters
  • Completely resistant against high humidity, scratches and aging effects
  • Diffraction limited, the filter will not reduce the optical performance of your telescope (or camera in this case)!
  • Astronomik filters are delivered in a high-quality, long lasting, filter box

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