Usability of Zone Focusing

Started Oct 22, 2020 | Questions thread
Autonerd Senior Member • Posts: 2,982
Re: Usability of Zone Focusing

Gerry Winterbourne wrote:

Gurusathiy wrote:

You have marked this reply as answering your question but it doesn't really do that satisfactorily.

As I said in another post, DOF depends (among other things) on the size of sensor. The markings on old lenses are calculated for 35mm film - full frame on digital - so unless you are using a FF camera (and you aren't) the scales give wrong answers.

Yes, good point -- I only zone-focus with 35mm. If the numbers don't work for APS-C, then I apologize ! The principles should be the same.

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