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Originally Posted by Gidders
Don
Why is the defraction limit camera specific rather than lens specific  |
Clive it is more sensor size specific then camera specific, on film f22 was considered as small as you could go till diffraction adversley set in, now you have to take the sensor size into account eg on the Olympus E system its a doubling x2 of focal lengh which also means a doubling of DOF and dof is a cause of diffraction so f16 has the equivalent DOF as f32 on film and the same amount of diffraction, you just need to apply the x 1.5 factor for the D100 which would make it about f20. The very reason compact and prosumer cameras rarely have a aperture larger than f8 or f11.
crafty