Is there a difference between film and digital SLR lenses?

Answer 1

Yes. Most "digital-only" lenses project a smaller image circle, one that's only big enough to cover the APS-C sized sensors in some DSLRs. If you use such lenses on a film camera, or on a DSLR with a full-frame sensor, the outsides of the frame will go from very dark to black, because the lens wasn't designed to cover that wide of an area. Some manufacturer's digital-only lenses won't even fit a full-frame digital or film camera (like Canon's EF-S lenses), but many will.
That's really the only difference. You'll see lots of claims about "better multicoating on the rear elements to reduce reflections from the digital sensor," none of which have been proven to actually do anything good. Good quality lenses (for film SLRs) already had multicoatings on every air-glass surface anyway...:)

Answer 2

No.

Of course, if you want to interchange lenses, you need to have a lense compatible with both cameras. I have the Canon Rebel in both film and digital SLR. I can interchange any lense between them and also other lenses made for various cameras in the Canon family, like the Canon Digital 20D.

Answer 3

Yes they r diff lenses

first of all - their mount is different

BUT - right now in Honkong you get convertors specifically made for each camera mount - i found what i needed - i have variety of lenses for Minolta SLR and managed to get Canon Digi SLR mount for it and i can use my minolta SLR Lense on Canon digi

Results are NOT stunning - but in case of emergency you can somehow manage to get OK OK results

Answer 4

Well Traveled said it well enough that I needn't answer. But two points is two points.

Answer 5

yes there is a difference
thank you