35mm movie film frames are 12 x18. They run horizontal and you get two frames for every frame of still camera film. The lens won't cover an APS sensor. Paul
> humm, isn't an APS sensor 16x24mm? A single frame 35mm is 18x24, so it should > cover fine. The problem really is that such lenses are very expensive, multi > thousand dollars. I forget what the 16mm frame is (10x14mm maybe) but it > would > cover some of the smaller sensors. But the same applies they are expensive, > not > as expensive as the 35mm lenses. A 20:1 f/1.0 zoom would be nice on your $200 > digicam. But who is going to spend $2500-3000 for one? > > It may be posible to addapt some old 35mm fix focal length motion pictures > lenses to the istD. They would be fairly cheap (most of them, used), but I > think > it would take at least as much machining as on Cottys Pentax to EOS mod. > > BTW, many of those old motion picture lenses do cover double frame (135) > quite > well, but those particular lenses still tend to be quite expensive. > > graywolf > http://www.graywolfphoto.com > "Idiot Proof" <==> "Expert Proof" > ----------------------------------- > > > > > [EMAIL PROTECTED] wrote: > > Hi Shel, > > A 35mm movie camera lens has the widest coverage of those you mentioned, > > but > it still doesn't have a big enough image circle for an APS sized sensor. > Unless > the lens was designed to cover more than the 35mm movie frame, you would have > vignetting in the corners. > > Paul > > > > > > > >>I was watching the PBS show "Frontline" a couple of nights back, and during > >>the intro a video collage is played, in which a 9.8mm f/1.2 lens is shown. > >>Clearly it's a lens for a video camera or 16mm camera, or some such. That > >>got me thinking about the possibility of adapting such a focal length to a > >>DSLR that uses the small sensors. First question, of course, is how does > >>the size of the istD sensor compare to the frame of a video, 16mm, or 35mm > >>movie camera . I think a 35mm movie frame is about 1/2 the size of a 35mm > >>still camera frame. Anyway, what might the possibility be of adapting such > >>a lens to a digi SLR? Any thoughts on that? Looking at the Sony digicam, > >>it's 7.5mm or so at the wide end ... shouldn't some of these movie camera > >>lenses work pretty well for digi slr use? Cotty? > >> > >> > >>Shel > >> > >> > > > > > > >
