frankie_frank1 Posted January 17, 2005 Share Posted January 17, 2005 Because of the small APS-C senor used on D-SLR, we use 1.5X or 1.6Xfor the focal lenght. Does it also apply to f-number? Link to comment Share on other sites More sharing options...
hkbmac Posted January 17, 2005 Share Posted January 17, 2005 no Link to comment Share on other sites More sharing options...
phil vaughan - yorkshire u Posted January 17, 2005 Share Posted January 17, 2005 Not to the actual size of the aperture or amount of light, however it does affect the depth of field. Link to comment Share on other sites More sharing options...
mark u Posted January 18, 2005 Share Posted January 18, 2005 See the next thread down (question about lenses) for some more details on how f-numbers and DOF are related to crop factor/sensor/film size. Link to comment Share on other sites More sharing options...
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