Up for sale is a Vivitar Series 1 70-210mm F/3.5 constant aperture Lens. It also has a Macro function on the 210mm end. The optics are made by Kiron and this lens is ultra sharp. This lens looks like it came out of a time capsule. It is absolutely pristine. It has one flaw, the front element has a small amount of haze or fungus on the outer edge but 99% of the front element is crystal clear. The rest of the elements are also crystal clear and there should be no loss of picture quality. It is FD mount, but if you already have a FD to EOS adapter you are all set to go for digital.
Make an offer. I have no use for this lens.
Pics coming soon, but seriously it looks like brand new.