Accurately comparing FF vs APS-C sensor performance? An open discussion.

Started Apr 8, 2013 | Discussions thread
Klipsen Veteran Member • Posts: 6,155
Re: You misunderstand

VirtualMirage wrote:

If pixel density affected DoF, wouldn't you think that all the current DoF calculators would have an option to factor that?

Possibly because the circle of confusion isn't a fixed value anyway.

At least the ones I have seen don't.

It could be that you haven't seen all - or that it's not worth the trouble since ... see above.

What plays a factor is sensor size, focal length, equivalent focal length, and aperture.

Not distance? Let me answer that for you: Yes, also distance.

And guess what: Focal length and distance combine to make one factor, namely magnification. So, forget about 'equivalent focal length' and accept that there are different size circles of confusion according to sensor size.

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