Solid camera, very well-built. A workhorse.
minus - quite old now, original screen very dim, (but can change to a newer bright screen but costs a lot, like S$300?), no meter, prism costly and bulky.
Another potential problem: may get jammed if lens is removed w/o first turning the crank (common and costly mistake!)
while 500CM is not expensive now, the lenses, accessories are still costly. not for low budget minded.