One of the other ones I owned was called 'Start' which is a translation of the Russian Cyrillic letters of the name below the prism. It was a cross between a Zenith B but with a bayonet mount for the lens. and an early Exacta. It had the common Russian F2/58mm Zeiss Biotar copy and the same back to front wind on lever, There was a film cutting blade . An auto aperture plunger which was also the shutter release button plus a removable prism. It came with a bayonet to 39mm thread adapter to take 'T' mount lenses. If you think an F4 is heavy get hold of one of these beasts To call it crude and clunky is a kind description, but saying that it never let me down. I sold it to help me buy a Pentax SV.
after years using Spotmatic and a bit of Yashica my regular 35mm SLR for when I shoot that format, are the KMZ Start and the Zenit-V. In 35 RF a 1953 Zorki.
None of these three cameras have ever caused me problems.
I think I mentioned the Start in one or two thread. I have 3 of them, because I routinely spend my week-ends in Russia (pre covid times...) and when I see a good camera in the 2nd hand market I pick it, this was the case with my Starts and others.
"crude and clunky" is quite exaggerated. Rewind lever is very basic, crude and prone to bend and crack, that's all. The camera is otherwise well finished.
It's a Zenit derivative without Exakta influence excepted the film knife, receiving cartridge and removable prism/chimney.
Mechanically the shutter is the one of the Zorki-4 but with a different layout, due to the mirror cage and prism.
I have few Start-ZM39 adapters so I use it often with the Mir-1 in M39 and different incarnations of the Helios-44, and the portrait Jupiters. But I have also DIY Tamron Adaptall adapter and DIY M39 version of the Mir-20.
Here my main Start besides a Ricoh Singlex. These Ricoh were the bigger japaneses at the time Olympus and Yashica made very small compact ones. The Start is just a bit chunkier and of course a 50's look instead of the 70's Ricoh look, but well the look doesn't matter to me.
Here the Start has a Tamron SP 28-80mm zoom with my custom Adaptall converter, the Ricoh has a Zenitar-M.
I take the Start when I need slow speeds and the 1/1000s, otherwise I use the Zenit-V.
the beauty of the Start is indeed the film knife and receiving cartridge (but it can take just a regular receiving spool). I rarely shoot a whole 24x or 36x roll, but often 8 to 12 frames with some emulsion, cut , remove the cartridge, load another emulsion, etc. I also roll BW from bulk and some cine color film.
The viewfinder of the Start is also very good, over 90%, very clear and a big split circle, the split could better be 45 instead of horizontal, but as is already quite good:
this camera is an unknown gem.
Whatever, facts are that i picked these second hand directly from the seller or from a 2nd hand shop like the one in Novoya Basmannaya str in Moskow or Photolubitel in SPb, and they HAD NO ISSUES. Just a damn fact.
My other 35 SLR user is a slightly tweaked Zenit-V, I did a custom rewind lever from the one of the Zenit-3M, added strap lugs, put an iso reminder wheel instead of the color/bw metalic wheel. Very basic classical 5-speeds Zorki-Zenit shutter, can't go wrong:
I have also used extensively a Moskva-5, simple, reliable, 6x6 or 6x9, pocketable. Only drawback prone to some softness before f8.
My Zorki 1953 just keeps going and going. I was careful when buying it, take care of it, that's all.
Even my 1960's Salyuts ( I have two) shot roll after roll. Only maintenance: they need some curtain retensioning somewhere between the 50th and 100th roll (haven't kept excat count), but this is easy to do.
I have a Kiev-2 who did suffer from curtain stuck, which was easy to fix, with precaution.
the Kiev-10 is nice for the range of speeds (1/2 to 1/1000) but is chunky and heavy. I removed the worn selenium plate and the solenoid for automatic diaphgram setup, so use in pure manual mode. Have too a M39 adapter for it.
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back to OP question, soviet cameras with ergonomic lightmetering are not the cuttiest old-look ones, but the Zenit 12xp/sd and the Zenit-122. Alternatively a Kiev-15 (checked/serviced of course).
There's a simple, basic, automatic CdS metered RF, the Sokol, many of them nowadays have non-working circuitry and if it works it takes no more than 250 iso. I use mine in manual mode anyway as I do always external metering. 5-speeds, a parallalax corrected viewfinder with nice RF spot. They all suffer at some time from a RF glass loosening because weak glue, but it's an easy fix. Lens Industar-70 is ok and can be good.