XF56 f1.2 released and specs

Started 8 months ago | Discussions thread
malcolml1
Regular MemberPosts: 122
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Re: XF56 f1.2 released and specs
In reply to Krich13, 8 months ago

Yes, I agree on the noise and detail argument.  I was just curious about the exposure bit.  Another way of posing the question is perhaps in terms of a given field of view of a scene.  The 56 mm Fuji lens has roughly the same FoV as an 85mm lens on a FF sensor.  If both lenses have their aperture open to give an f number of f1.2, would the exposure time be the same to get the same total exposure on the sensor?

One could even imagine that the light intensity per unit area on the smaller sensor would be greater on the smaller sensor because the incoming light is focused onto a smaller area.

Must admit to being a bit confused.....

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