The main ancestor of our Jup 8 is of course the Sonnar 2/5cm. It was produced in bayonet and LTM mount, and different versions were made, as it seems, during and after WW2. I am very interested by these lenses...
Here are some of them:
http://www.ussrphoto.com/UserContent2/1512023_IMG_0874.JPG
From left to right (and up to down):
- Sonnar #2683810, collapsible, M engraved,
- Sonnar #2709453, bought without mount,
- Sonnar #2709900, collapsible, m engraved,
- Sonnar #2711193, collapsible, M engraved,
- Sonnar #2854538, rigid, M engraved,
- ZK #4903651, collapsible, of course with M,
- Jupiter 8 early, #5005810, with ears.
I will try to write some words about each of them... but for sure I won't exhaust the subject!
Jacques.