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2
votes
2answers
1k views
Why does depth of field occur?
I wonder why depth of field occur in the first place. This is not a question about what changes the effect/size of field. We all know that.
Aperture, Focal Length, Focus Length (distance to subject), ...
5
votes
4answers
293 views
What's the difference between vignetting and pinhole?
Sometimes people say that a lens has bad vignetting but it looks very similar to the effect of pinhole (darkened edges).
What's the difference?
If someone asked to have a vignetting effect (in PP) ...
