|Posted: Fri Sep 29, 2023 3:20 pm Post subject:
|Nice to meet you.
I am astonished by all the very interesting content.
I recently found and purchased a HELIOS-44-2 that was being sold cheaply because it was out of focus.
From the external features it looks very similar to the "44-2 model 2.a.v1" and from the serial number I can guess that it was manufactured in 1969.
However, the 44-2 is generally considered to be an M42, but this one is an M39 (the clerk said it was an L39). (The clerk thought it was an L39, and this was the reason why he thought it was out of focus.)
I did a lot of research on my own, but could not conclude whether this lens is a 44-2 as described or a 44.
I would appreciate it if you could tell me the reality of this lens and how to identify it.
The last photo shows a comparison of the mount shape with that of the Industar-61 53/2.8.