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laveller

35mm equalivalent question?

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laveller

Here's a quick (and maybe stupid) question ... If for some reason I decide that I need a 75mm (in 35mm terms) for my XP1 and I mount a Zeiss Lence Planar 1,4/50mm on the front, is it still a 1.4, or something else?

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FinePixCamera

It's still f/1.4 for exposure purposes. The effective depth of field aperture is something like f/2.2 though.

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