On Dec 14, 2006, at 9:14 PM, Digital Image Studio wrote: > Does anyone want to have a stab at estimating the practical > diffraction limit for the K10D? My *ist D resolution seemed drop off > from about f16, so I assume for a Bayer filtered sensor the practical > limit would be something like twice the airy disc diameter plus a bit > to account for the AA filter? > > The *ist D sensor has 7.8µm square photosites so the aperture to > produce an airy disc of twice that is f11 plus one stop fudge. Given > that the K10D sensor has 6.05µm square photosites applying the similar > factors would yield a drop in resolution after about f13. > > I haven't done any serious comparisons as yet but I'll be keen to see > if the theory fits the practical. > > If you think it's all a crock then you are quite entitled to your > opinion :-) > > -- > Rob Studdert > HURSTVILLE AUSTRALIA > Tel +61-2-9554-4110 > UTC(GMT) +10 Hours > [EMAIL PROTECTED] > http://home.swiftdsl.com.au/~distudio//publications/ > Pentax user since 1986, PDMLer since 1998 > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net
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