sebboh wrote: uhoh7 wrote: sebboh wrote:
such tests are interesting academically, but not worth much if you are never going to use the lens to take a shot that has distant edge details in focus
Edge performance does have to be distant to matter. What the distance gives you is the detail to see very easily what happens as you approach the edge. Now, I suppose what I should try is to split a face on the edge, since all those little pores and hairs have so much more detail than a bookcase.
infinity edge tests are unlikely to be relevant to edge performance at portrait distance. often times shooting at infinity will show edge degradation due to field curvature that is not field relevant at short distances because you are focusing on the subject near the edge (also, field curvature characteristics often change depending on the focus distance).
Well I need to shoot my test with at least two people then, one in the center, which I\'ll focus on, and then my half face on the edge
Going to be tough with the DOF of a 75 or 85 around 1.4 at .7 m : Close Focus by unoh7, M9 75 Lux
Dec 17, 2015 at 03:55 PM
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