Contax RTS II and Contax RX bodies. Coupled with the f2.8 28mm distagon, f1.4 50mm, f2.5 135mm, and f2.8 180mm. Great systems!! I did get rid of them though as the main cameras I use now are medium and large format. I do occasionally use the 35mm panoramic back on my Mamiya 6 MF :-). The only other 35mm camera I own is a Yashica T4 I picked up from the cabelas bargain cave..... for $30!! Apparently one of the game camera companies modified them for use in some of the older game cams. My T4 has a small plug fitting JBWelded onto the front, that's likely to an IR trip switch. Now most game cams are digital :-)