How to determine a lens' sweet spot?

Started Jan 26, 2013 | Questions thread
corneaboy
Contributing MemberPosts: 565
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Re: Two stops down from maximum...
In reply to Barrie Davis, Feb 1, 2013

Not the whole story.

The sweet spot only applies when the subject you are photographing lies in a single plane.  When your subject has depth you may be more interested in  having a larger depth of field.  In that case you may want to use a smaller aperture than your sweet spot.  There is always a question of whether DOF is more or less effective than being at the sweet spot.  Otherwise, there woould be little reason to have all that range of f stops that is available on your camera.

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