The apeture works well
The focusing ring is smooth
It appears to have some minor fungus which I have photographed
According to similar listings, I believe this may be a minolta md mount
Please view all of the photos to see more details on the signs of age this lens may have
I have not tested it on a camera
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This is from a lifetime camera collection, from which we got about 1000+ cameras. Therefore, I am no expert, and I have been looking online how to work and test these