Also the rarer camera called 'Start' A bit like a cross between an Exacta and a Zenith, so long as it has the M39 adapter because otherwise the fitting is a unique bayonet. Another Krasnagorsk model. I had one a few years ago, well many years ago and I shall make no other comment except to say it was an 'experience'. I have actually seen a few of them on E Bay recently and seem to mostly come from French sellers. Better built or should I say more refined, that is if you can refine a house brick! F2 58mm lens and a full range of shutter speeds, plus auto diaphragm on the lens