I noticed just today a pawn shop that I must have passed hundreds of times over the last 15 years. Stopped in to see if they had any lenses, they had six. 3 - 28mm f2.8, Vivitar, Rokunar, and Makinon all at $8 each. 3 - 7-210mm Canon FD, Vivtar, and a no-name that I purchased for $15. (I sometimes suffer from GAS (Gear Acquisition Syndrome)). Now I'm trying to determine the mount. After searching the web for several hours, I think it's a Minolta knock-off that was made by Samyang (the lens is stamped "Made in Korea") probably for a third party like Sears or K-Mart plus it very much resembles the Minolta 70-210mm "beercan" lens. It has a red MC on the front, but, the aperature ring is marked "MD". MC stood for Meter Coupled and MD for Minolta Dual(?). Other Minolta details in the photos. Can anyone verify that this is a Minolta mount? I need to buy an adapter.