Nikon FF v APS-C image comparison

Started Apr 11, 2013 | Discussions thread
Rod McD
Senior MemberPosts: 2,200Gear list
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Re: It has less DOF for the same FOV, aperture and distance to subject
In reply to moving_comfort, Apr 12, 2013

Hi,

Agree - the lens on FF has less DOF.  The same lens doesn't change - it doesn't know what size sensor is behind it.  But the calculators don't use the same formula for the two formats.  Quite apart from the FOV and distance changing for a given composition, the tables and calculators change their circle of confusion used in the calculation for FF and APSC.  (For a given print or screen image, the enlargement ratio is different for the two formats - APSC is blown up further so what is OOF appears OOF earlier to the viewer.)

Rod

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