Some heavy metal from the good old days. 300mm telephoto lens made by Samigon with a Canon FD mount. HOWEVER.. there is an issue, the mount has been modified by someone and the aperture index lever is gone, so I don't think it will stop down. I don't have an FD mount body to test it, but it sure looks like this would be a wide open only deal if used as is. The good news is the glass is clean and clear, it has a generic UV filter on front. Could be fun, maybe a good project lens. 25.00 with shipping included. Make an offer, I have other items in the classifieds right now, just want them to go.