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DOF difference between DX & FX

monteverde_org

Monteverde Cloud Forest, CR
1283 posts

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"RE: DOF difference negligible?"

monteverde_org Silver Member Nikonian since 16th Nov 2007
Wed 09-Jul-08 05:08 AM

"the dof difference is negligible" - when shooting a bird from 50 ft for example, not being able to get closer because of the circle of fear, the difference is enough to make a difference in which parts of the bird will also be in focus.

As per the DOF calculator link in post #2, with the same frame:
- D3 (or D700) from 50 ft with a 600mm lens @ f/4 = 0.49 ft DOF
- D300 from 50 ft with a 400mm lens @ f/4 = 0.74 ft DOF

OTH with the extra ISO capability of the D700: from 50 ft with a 600mm lens @ f/5.6 = 0.69 ft DOF.

The real difference in this example is that according to B&H today, the D300 + 400mm combo is $10,150 while the D700 + 600mm is $12,500 & 1.3 lb heavier.

A general, generic topic DOF difference between DX & FX [View all] , BCinDC , Sun 06-Jul-08 11:17 PM
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