Canon problem: help me figure out what’s wrong!
Taken at 1/200s f3.5 with 70-200/2.8 II lens (actual focal length 105mm) on 50MP 5DS R body. Images stabilization on in handheld mode. Same problem shows up with 1/640s exposure or with studio flash.
I have no idea what’s wrong. All other lenses work fine on 5DS R body. The lens in question works fine on 5Dmk2 and Sony A7R bodies. But the two aren’t working on combination. Camera firmware is up to date. Canon Professional Services have no guesses. The combination as it is now is useless for any purpose.
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