Hello Will.
I use a Leica M3 (1959) with a 50mm f/2.0 collapsable Summicron (1953). I also have a Kiev 4a with a 50mm f/2.0 Jupiter 8M (both 1969). I bought the Kiev out of pure curiosity, and I was pleasantly surprised at what it can do.
The Kiev 4a is heavy and tough. Its fit and finish are not refined like the Leica's, but it consistently delivers very good images. The Jupiter's pictures are somewhat more contrasty than my old Summicron's, even after having Sherry Krauter at Golden Touch clean and service the Summicron.
After about two years' use, my K4a broke a shutter ribbon. I ordered some replacement "Arsenal" ribbon from Oleg Khalyavin at
www.okvintagecamera.com in Russia. With Contax ribbon replacement instructions I found on Rick Oleson's website, I fixed it. It has been working splendidly ever since. Rick says that those ribbons are about all that ever goes wrong with a good sample, unmetered Kiev RF.
For me, the wee little viewfinder on the Kiev 4a is a pain to use with glasses. I use the viewfinder mainly for its rangefinder, which is long and accurate. I view the image with a Voigtlander Kontur framing device mounted in the K4a's flash shoe. That took a bit of getting used to. With the Kontur one shoots with both eyes open. One eye sees only the scene while the other one sees only the framelines. The mind brings them together.
The M3 is easier to use. The viewfinder window is far more generous and brighter. The shutter is smoother in its release. The hold is less awkward. The setting of shutter speeds and aperture is easier. But at ten times the price of the Kiev 4a, one might look at the images from these two cameras and reasonably ask "Whyever so much difference in the prices paid?"
If I were buying a Kiev 4a or any FSU camera today, I would just be sure to get it from a dealer who would stand behind it. I suspect that anything one would pay others to fix such a camera might exceed the initial price paid for it.
I don't have an LTM camera, but I am thinking about it.
🙂
P.S. Does anyone know what the "M" in "Jupiter 8M" means?