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I have no problem getting consistently in-focus 50mm shots @ f/1.4 on both my Canon and Nikon bodies.
well , the AF sensitivity is F 2,8 (in reality 3,4 in some cameras) and if you not use live view and go by the AF assistance with Otus you have a minor variation of the sharpness plane in the depth of F 2,8
take 5 shots and use the AF assistance and go from infinity to the target distance 2m and do so for every shot and I promise you that you get different plane of sharpness in your shots at 1,4
And if you use a high resolution camera as d800 you se it more clearly
OR do a test with your AF 1,4 lens at 1,4 , take 5 pictures and let the camera re focus between the shots, put your hand in front of the lens or go to infinity and then let the AF focus, you have now a serie of different focus plane at 1,4 if you look closely
Edited on Feb 25, 2014 at 11:54 PM · View previous versions