From: "Jens Bladt" <[EMAIL PROTECTED]> > For those of you who didn't read the very long thread about "*ist D sensor > and 35mm lens resolution", I have posted shots made made with a Pentax MZ-S > and different lenses compared to almost identical shots made with a Sony DSC > F717 - a 5MP camera with a Carl Zeiss Vario Sonnar lens and a 6x8mm chip. I > believe practical tests are equally informative as the facts of the figures > (according to which a 6x5mm chip should not be able to produce much > resulution). > The link is this: http://gallery50012.fotopic.net/c132825_1.html > > Nest time I'll use and a dedicated film scanner. J.C. O'Connell suggested > I'd use 50 or 100 ISO, but I guess the SONY (as well as the 'ist D) does not > feature less than 200 ASA. And f 1:8 is the upper limit of the Sonnar lens, > but not of the *ist D. (I believe that most lenses have their best > reslolution/performance at f. 1:8 - 1:11, though). This bring me to > suggset - again - that somone on this list will do similar tests, using the > *ist D....
Quite frankly, your comparison is incredibly flawed. The equivalencies you seem to have drawn between film and digital are off. The ISO's of a digital point & shoot are not comparable to film. The f stops are not comparable either. And that you scanned the film on an flatbed....For this test to be equal, you need to open up that Sony, bend the sensor at the corners, and cover it with with Vaseline <G> Mark
