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2 votes
9 answers
862 views

Is deep depth of field AND bright exposure possible?

I know that a larger aperture corresponds to a brighter exposure and shallower depth of field for a given focal length. Is it optically possible for a custom-built camera to form an image with both a ...
Ben Hershey's user avatar
3 votes
6 answers
4k views

Why do we need a DOF preview button?

Why not just show the effective depth of field, by default? What's the point of having it display a picture that's different to how the image will actually turn out? My first thought was, it must be ...
voices's user avatar
  • 615