P8 digital focal length

P8 digital focal - Compacts digital compact cameras have lenses of short focal lengths to create a field of view on their smaller sensors that are

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Digital Photo I  PGY1800C Digital Focal Length SLR's: only a few dSLRs use full-frame image sensors, which require no  change in focal length. Most, however, use a smaller image sensor.  We usually talk about a focal length multiplier of 1.6 to be applied to  the focal length of the lens to obtain the true focal length for digital  SLR use. A "normal" focal length lens of 50mm translates to 50x1.6,  or 80mm on a digital SLR.
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Unformatted text preview: Compacts: digital compact cameras have lenses of short focal lengths to create a field of view on their smaller sensors that are equivalent to a 35mm field of view. The compact sensor diagonal is 4 times smaller than the diagonal of 35mm film. A 7mm lens on a digital compact camera will have the same field of view of a 28mm lens (7mm x 4) on a 35mm film camera....
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This note was uploaded on 12/11/2011 for the course PGY 1800c taught by Professor Hale during the Summer '11 term at Santa Fe College.

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