RAZKY
No longer a newbie, moving up!
- Joined
- Jun 14, 2021
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As unpopular notes, this can be baffling. I plugged the same information for each lens as you did into the macro calculator, and in both cases the results were identical - scale of reproduction is 1:128.6, total depth of field is 26.26 feet, at f/8.0. As near as I can tell, that depth of field agrees closely with the DOF scales on my lenses.This is incorrect. It's a common myth that you can factor out lens focal length. In some cases you can but in other cases you can't. Interesting that you provided a link to a macro DOF calculator. In closeup and macro work it is possible to factor out the lens focal length so that DOF will = magnification + f/stop. But that won't necessarily work if you're shooting landscapes. Consider the example below using DOFMaster's calculator. You're going to have a tough time making the argument that 127 feet = 28 feet.
View attachment 246114
I think that the macro calculator is useful for anything from, say, 1:10 to beyond 1:1000.
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