xayraa33
rangefinder user and fancier
I highly recommend getting the version with the Italian made mount. Historical and very likely proper calibration. Plus, LTM gives you more flexibility.
The first one is mounted in an Industsr 26/61. I have one of those.....by far the cheapest lens I own, and I'm not talking about purchase price. That one looks a bit beat up and then attached to a cheap mount..... maybe if the price was much lower I'd consider it. The last is mounted in an LTM summicron mount. Probably fine, but not historical or flexible as the Italian mount. Plus, it's from kevincameras, which isn't a bad thing, but he/they are typically much higher priced than market. However, I have never bought from them, maybe worth the much (sometimes way much) higher cost?
Anyway, I like the Italian mount. I'm thinking I would like one too 😉
The M mount one from Hong Kong on * Epray looks to be mounted on a collapsible 5cm Summicron in M mount body, with a shiny machined and knurled mid section of the right size.