jefflantzimages wrote:
looking for information on getting an adapter for my 600 canon lens which uses FD and A1 cameras. heard many producers - Fotodiox, velour, hama, bower and tianya - but have no information on which is best or better. any assistance is appreciated. thanks jeff
Jeff, I also have a 600 FD. I use the Ed Mika glassless adapter. It is probably the only one that works w/o a glass element. The problem is that the Canon distance from sensor plane to lens body needs to be 44.5mm. As soon as you put anything between the camera body and the lens it essentially becomes an extension tube. You gain magnification but loose the infinity focus. The EdMika has no glass and the latest version is only .5mm thick(mine is .75mm and works well). This puts you within the tolerance inherent in the lens to keep infinity but sometimes still requires a small but simple tweak. But the Ed Mika is not cheap at about $150 + ship. I have never tried one of the adapters with glass. Rumor has it that you loose a lot of IQ. They are cheap enough though if you wanted to give one a go. Google Ed Mika. Let me know if I can give you further info.