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July 13th, 2009, 04:12 PM
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#1 |
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Trustee
Join Date: Mar 2009
Location: Santa Clara, CA
Posts: 1,104
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Auto focus at higher f-stops
Does a camcorder autofocus as well at more closed aperture positions? (assuming correct exposure)
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July 13th, 2009, 04:20 PM
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#2 |
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Warden
Join Date: Mar 2002
Location: Clearwater, FL
Posts: 8,287
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Most AF lenses use contrast as a means of determining correct focus. Various things can affect contrast, including filters, lighting, subject, and to some degree the lens opening. But given your assumption of enough light for proper exposure, then the higher f/number should not have an affect on proper AF.
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