Just bought a nice looking, pre-WWII, CZJ 18CM 6.3 Tele Tessar K off Ebay for a good price. The problem is that there was minimal description from the seller so I erroneously assumed it was for a Contax RF body which I own. The mount appears to be for an Exakta body. I did a quick read on Exakta and it has a fascinating but sad history. I am looking for suggestions on the best body to buy for this lens.