I've had to file down the mount of some J-9's to get them to fit on a Contax camera, and on adapters. I've also filed the bezel that fits over the mount before.
I use my J-9s, but on Digital these days. The best is a KMZ with an adapter, focuses across range on the M9.
I use my J-9s, but on Digital these days. The best is a KMZ with an adapter, focuses across range on the M9.