Pardon me if this has been answered, but all I can find are specific answers to this lens with that DSLR body and so on. Feel free to redirect me to the post which may answer this. What are the basics for using Film Lenses on DSLR bodies? For specifics, I have been using a Nikon, Nikkormat with a Vivitar 70-210mm as well as a Nikon lens. I have been looking at the Canon Rebel XTi. Feel free to use these as examples. Any help would be very much appreciated. Thanks.