"Depth of field is insufficient"

Started Dec 17, 2011 | Discussions thread
rhlpetrus Forum Pro • Posts: 24,895
Just like any other IQ parameter

They all depend on how large you print or look at images. A 24MP (6000x4000 pixels) file (D3x's) seen on the typical 100PPI monitor will be 60x40", or 5x more in each direction compared to the standard of 12x8" used for classical DoF calculations (actually 10x8" translated into 3:2 aspect ratio).

That means the CoC used should be 5x smaller. Thus, for FF, whose classical CoC was 0.025-0.030mm, seen or printed that large would require a CoC of 0.005-0.006mm or 5-6 micra for proper DoF estimates. That's close to the pixel pitch of the D3x (5.94 micra), meaning those things are actually interacting.

Iliah Borg wrote:

Rick Knepper wrote:

Having trouble achieving enough DoF must have been a film era problem.

Good one

It is a problem with understanding; when printing large, cropping heavily, looking close, and generally having high resolution.

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