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[Stewart]

 Hi,
 
I have recently acquired a nice-looking Zeiss Werra. Everything seems to work OK (I've yet to run a film through it). But the aperture control is really stiff and I was thinking of trying to get inside it to do a bit of a clean. The troubl

[Tony Duell]

 Hardly an expert, but the Werra is one of my favourite cameras, and I have taken them apart. You don't say which model you have (do you have a rangefinder, do you have a built-in meter, do you have interchangeable lenses), but they all come a

[Charlie]

 How do you know which shutter you have? My Werra I is an olive green, tessar lens, made between 1955 and 1958 with a 1/500 max speed but no shutter brand identification.

[Tony Duell]

 Ah, that sounds like a Compur version (which I know nothing about). The Prestor has a 1/750s maximum speed.

[Stewart]

 Thanks, you're pretty knowledgeable for a non-expert! Mine is olive green, scale focus, CZ Jena Tessar 2.8, maximum speed only 1/250. There seem to be only three leaves in the shutter.

[mike_j]

 My Werra Mat has a capping shutter which sticks, currently it is open but has also stuck shut. I am happy to dismantle the camera to the point of having the shutter/iris capule separate but want to go no further. I have cleaned with lighter fluid - is