I'm looking at hyperfocal distances for a wide angle lens on 10x8 at a fairly small aperture. A 'normal' CoC for 10x8 is (I think) 0.2, whereas a CoC for 5x7 is 0.15.
Would I get a better result (in real life rather than just theoretically) using the smaller CoC of 0.15 (or even smaller)? Would it even be noticeable in contact prints?
By my calculations the difference between a 0.2 and 0.15 CoC would move the hyperfocal distance only about 3ft further away from the film plane.
(I think I understand a little of what the Circle of Confusion is about - but seldom has a technical term been so aptly named )
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