Contax III
Contax III
I know, it's almost irreverent to say such a thing about such a classic RF, but the Contax III that I used to own was my most irritating camera ever.
What was especially frustrating was that 99.9% of it worked quite well for me. But the remaining 0.1% was literally a pain! It was that dratted little screw head that sticks out near the self-timer lever; this tiny but infuriating protrusion never failed to dig into the tender ball of my pinkie finger severely enough to cause me to lose my concentration within seconds!
If you're a guitarist or violinist with heavily-callused fingertips, it might well be the ideal camera for you, but I just couldn't deal with it. Even the foul-smelling Fed 5c I briefly owned wasn't as annoying -- there was plenty of bad stuff on the Fed (not the least the weird stench it had picked up from its leather case, and which never completely dissipated) but at least it was distributed around the camera to achieve an overall level of moderate irritation, rather than the Contax system of concentrating all its evil-ness into one tiny, supremely annoying point!