The Minolta 7s Hi-Matic is a solid all metal camera weighing in at just over 700 grams. Very nice Rokkor 45mm f1.8 standard lens. Can be used in all manual mode without battery ( no metering of course). Semi auto and full auto are the available modes with battery power. The replacement for the PX 625 mercury cells are zinc-air 1.35v, or simply use a modern 1.5v alkaline. Our example here is fully operational in all respects.