Hi All,
I was feeling brave last week so I done a little job that I have been putting off for weeks ! I removed the IR Blocking Filter in front of the CCD to improve the Red Spectral Response of my 20D.
All went well as the camera is still working and I am looking forward to giving it a feild trial on the next new moon, something like the Helix Nebula which I had a lot of trouble with last year due to the poor Red response of the camera.
This weekend I spent some time to document the process to remove the filter for the 20D. If anybody is considering doing this, you can access this document at the url below.
http://www.cwjames.info/astro/howto/ir_removal.htm
I will contact Mike later to see if this is something that he would like on this site as well.
I hope it helps someone in the future.
Thanks
Chris