On Thu, 27 Feb 2003 00:21:28 -0600, you wrote: >So, yes, the 50mm lens on an APS sized sensor would have the same angle of >view, d.o.f. at same aperture, perspective, and "flattening" effect as a >piece of 35mm film cropped. But so would a 75mm lens on a full-sized piece >of 35mm film. > >Hope this is clear. This is one of those perennial questions in >photography--it just always comes up again and again and again. > >--Mike
I support Mike's observation. The DSLR's smaller sensor acts like a 1.5x teleconverter. Your lenses just get longer with the smaller sensor, no matter what. My 300/f4mm lens becomes a 450/f4mm lens, and my formerly wide angle 24-135mm zoom becomes a very different animal of 36-202mm. So break out those good old long Pentax and K-mount lenses, those who have been yearning for Big Glass. I personally am jumping with glee - my Tokina AT-X 300/2.8 and Pentax 1.7x AF Adapter will make a very fine 765mm/f5 lens. Even the little K 200/2.5 is looking pretty good at 300/2.5. And the 600/4 with 1.4XL teleconverter becomes an amazing 1260mm/f4 lens. Drool city for this telephoto aficionado. -- John Mustarde www.photolin.com
