10/18/2008 18:45
Vlad,
My database actually developed from trying to understand the history of Industar 22 and 50 collapsible lenses and to this I added post war FEDs/Industar 10s. To this got added additional info, particularly for models I own.
eg like everyone, I knew that there were 2 types of FED-1g, one with numbering on the top plate and one with it on the back plus the commemorative series. I now know that: around 455849, the eyepieces on the back changed from what I call a wide rim to a narrow rim. They changed back to wide for what seems to be 2 very limited commemorative series with numbers commencing 4656 and 4684 (there may be other series that I have not identified) and cameras in between (I have 466708) before returning to the new narrow rim. The first number I have seen on the back is 510636 yet 511970 still has it on top. Somewhere after 547624 and before 641973 the shutter crate changed to what looks like a Zorki-1c type ie flat spring, big screw with normal slot and integral retaining lip. The only visible difference appears to be that the locking nuts on the tension setting screws remain traditional FED two sided rather than Zorki 4 sided. The sample size of 3 cameras is small but they are consistent and I have no contrary examples.
I need to do a fair amount of tidying up before I can post anything. Until Christmas, I will be flat out with pre during and post arrangements for a school band tour to the Hong Kong Jazz Festival but after that I will take it on board.
Cheers,
Paul