Quote Originally Posted by Jon Ruyle
even taking bellows factor into account, cropping gives no DOF advantage.

Am I calculating it wrong? Here is what I get:


78.9mm DOF for 28.8x36mm sensor size, 0.0287mmCoC, 1.36m focus distance,50mm lens, f/2.08 (effective), 1.038 bellows factor


38.6mm DOF for194x245mm sensor size (8x10 view camera),0.195mm CoC, 1.36m focus distance, 340mm lens, f/14.67 (effective), 1.333 bellows factor.






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