Hellow !
1. Is there any sharpness difference between ID MARK IIN (1.3 crop) and IDS (FF) in case of using Canon 300mm f2.8 IS ?
2. same question between MARK IIN (1.3 crop) and 30D (1.6 crop).
I have no FF body, so I could not compare especailly question 1. And I am not sure about question 2 even though I have those two bodies.
any comments on those questions would be appreciated. Thanks

