I'd completely forgotten about that half-frame Hexar RF, and come to think of it that might be the first picture of it I've ever seen.
This is a small thing, but it's a totally cool thing that Konica did: If you look at a strip of negatives taken with the RF, you'll see a little notch on the side of the frame, that's intended to denote the exact camera that took the picture. You'll see the actual notch on the film gate. This is something that camera makers used to do routinely, or photographers added on themselves so as to make for a unique "signature" for the camera. Konica did this right up to the end, I think.