Focusing in Landscapes
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28-12-11, 04:09 PM
Join Date: Sep 2010
Location: Hove, actually
I've looked at the Cambridge site but haven't read the article in Outdoor Photography. I assume that it's pointing out that if the hyperfocal distance is H, then if you focus on a distance (H/n) away (where n is any integer) then the depth of field extends from (H/(n+1)) to (H/(n-1)).
Depth of field depends on the degree of enlargement, and also on the amount of sharpening you apply to the image. Excruciating detail on application.
When the lens is focused one focal length away, depth of field is symmetrical about the plane of focus.
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