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April 24, 2024, 08:28:38 pm
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Aperture and Distortion
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Topic: Aperture and Distortion (Read 2292 times)
Kirk Gittings
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Posts: 1561
Aperture and Distortion
«
on:
April 27, 2007, 11:22:11 pm »
How does aperture size effect barrel distortion and chromatic aberration? Why?
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Kirk Gittings
pfigen
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Posts: 534
Aperture and Distortion
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Reply #1 on:
April 28, 2007, 01:31:33 am »
I'm pretty sure that aperture does not affect distortion, but it does affect vignetting, resolution, diffraction, and on some lenses, the degree of color fringing or c.a. Probably need an optical engineer to tell you why.
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jjlphoto
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Posts: 467
Aperture and Distortion
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Reply #2 on:
May 01, 2007, 03:25:04 pm »
If the lens has internal floating elements, then focus effects the degree of linear distrotion, IE, the lens focuses at infinity has some barreling, and focused up close would have more barreling.
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Thanks, John Luke
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Aperture and Distortion
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