It might be worth checking, but I thought that this family of filters was designed only for the crop bodies and not the full frame bodies like the 5D series?
You are both correct. These filters are not compatible with EF-S lenses, cameras pre-2003 and all 1D/5D body varieties according to the Astronomik website:
If you're using it with a scope you can get a 2" CLS filter. That's what I got when I realized the CLS clip wouldn't fit my 5DmkII. Not sure about the CLS-CCD version though.
If you're using it with a scope you can get a 2" CLS filter. That's what I got when I realized the CLS clip wouldn't fit my 5DmkII. Not sure about the CLS-CCD version though.
Unfortunately I wasn't intending on shooting through my scope. I was after something for my Canon L lenses (17-40 and 70-200).