I recently purchased an FD mount Vivitar Series 1 70-210 macro lens for $40. It seems to be in great shape. The problem is it seems to be missing the filter thread on the front.
Does anyone know how these lenses were put together and where I can find this missing piece?
I tried a 67mm female to female coupling ring but it was too small for the male threads on the lens, even though the lens itself says 67mm diameter on it.
It could be 72mm, but I wanted to make sure there isn't a proprietary Vivitar part that fits here before going off and spending more money trying to find a 72mm female to female coupling ring.
Also, did I get a good price on it or was I a chump?