Potential dead horse: how bad is FF's deep DoF disadvantage?

Started Mar 5, 2014 | Discussions thread
OP sportyaccordy Veteran Member • Posts: 9,206
Re: Potential dead horse: how bad is FF's deep DoF disadvantage?

new boyz wrote:

"DoF is entirely a product of the aperture diameter. "

Technically yes, but consider this example - A 85mm f1.4 will has more DoF on DX camera than on FX camera for a headshot. Why? With DX, you have to step back few feet, thus increasing DoF. Same lens(aperture), different DoF(and prospective).

53 1.0 DX is equivalent to 85 1.4 FX. They make the same aperture diameter (53mm) and have the same perspective/field of view, so they are equivalent.

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