35mm SLR with built-in CdS cell
light meter was introduced in 1964. The camera was a little alike the Minolta SR-7
of 1962 but of course it differed in some details, especially the lens mount. Both cameras had a battery powered meter coupled to the shutter speed setting, with CdS photo resistor which looked through a separate bull's eye and didn't measure thru the lens
The camera has a focal plane shutter that supports speeds up to 1/1000 of second. It has an M42 screw mount. Original list price in 1964 with a Yashinon f/1.8 lens was $175 and with a DX f/1.4 lens was $225.