My educated guess is that this lens is too slow to work well on the Letus Extreme. I have a Letus Extreme and I can't stop down past f4 without seeing the ground glass. I have an f4 200mm that does not work with the Extreme. How fast is your 70-200mm? You would probably be okay with a faster lens (or with a better lens adapter).
I think there should be a lens adapter forum on the cow! I suggested it to Ron once.
My 70-210 lens is at f4, it works great with my extreme but the first time i took it to the beach i got some GG in the images, think i set it up badly, never had a problem after that. That was strange cuz i've shot outdoors with it b4 in daylight and never had that problem. Yea that lens may very well be too slow. So where can i find a fast 200-400mm lens that wont cost me a zillion dollars that will work with our adapter ? LOL
I prefer nikon lenses but im even looking at canon to see what i can find
Anyways , do those ED lenses work at all on letus, well the ones with the stop control anyway?
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