I picked up a Canon F1 from the 70's awhile ago. Put new seals in it and have been shooting it with a 50mm f1.8 lens. I'm interested in a macro setup for this camera and was wandering about lenses and extentions. I would like to make 1:1 lifesize photographs. Sharpeness is also important to me. I would like the best setup possible. Thanks for all suggestions.