Hao Chun Liu , Feb 10, 2012; 05:05 p.m.
Hi everyone,
My Schneider xenar 150/4.5 has a broken shutter. The repair fee is simply not affordable.
Therefore I decide to see if I could find a new shutter for the lens after doing some research
and knowing that it might be achievable.
The original shutter comes with the lens says 'press compur'. I disassembled the unit and
discovered two groups of lens (front and rear). That's what I've got so far.
Any idea or suggestion? I am simply looking for a lens/shutter in a working condition and
my budget is around £100.
Thanks
Dave Sims 
, Feb 11, 2012; 01:38 a.m.
Hi. Possible solutions:
(i) Are you sure the current Press-Compur shutter is not repairable? If there is a chance it can be fixed, contact Carol Miller at Flutot's Camera Repair in southern California. They get a lot of work and may be backlogged several weeks, but they do excellent work at a very reasonable price. This is the best option and it's worth looking into.
(ii) If you are determined you want to replace the shutter, one option is to do it yourself. Look for a working Copal #1 or Compur #1 shutter on ebay. It may eat up most of your budget, and you may have to get it overhauled anyway to get it in spec. (Before you do this, confirm you need a #1 shutter. The front hole in your Press-Compur should measure exactly 4cm.)
(iii) The other option is to have someone put the lens in a reconditioned shutter for you. One outfit called LensN2Shutter does this at a reasonable price, but I have no experience with them. S K Grimes is well known here, and they do beautiful work but tend to be pretty expensive.
Hao Chun Liu , Feb 17, 2012; 07:13 a.m.
thank you Dave. I will follow your suggestions and hopefully things won't get too complicated.
Hao
Mike Parrish , Mar 11, 2012; 11:26 a.m.
Perhaps you can find a Polaroid Copal Press for just a few dollars. I'm "fairly" sure your lens cells will screw directly in and you can transfer your existing f/scale. However, I think I read somewhere that the spacing isn't exactly the same as the non-Polaroid shutters but I don't "think" performance will suffer. If you decide to try a Polaroid Copal Press... be careful which one you buy... some don't have apertures.
Michael Josefsson , Mar 17, 2012; 08:02 p.m.
What seems to be the matter with the Press-Compur? They are built like tanks! I recently cleaned mine, and while it took the better part of an afternoon it is doable.