removing a shutter from a folder

[manfromh]

I have this Agfa Billy Compur folder camera laying around. I removed the lens elements, to convert the camera into a pinhole, but I never got around to actualy making the pinhole.

Now I need to remove the shutter for another project. This is problematic, because I cant seem to figure out how to remove the shutter. I dont see any screws that might loosen it. I'm probably missing comething obvious though. This is a compur shutter by the way. The lens was a 10.5cm apotar f4.5 if it makes any difference.

Any help?
Thanks

Matis

 

[Ole]

It should be fastened with a retainer ring on the inside. Close the camera and open the back, and you should be able to see it. It's (probably) a black ring with two notches in it.

 

[manfromh]

Oh yes, i see it now.

thank you!