Contessamtic E rangefinder callibration

After some searching, I found a post that stated there is a hole in this model behind the film door, below the viewfinder. There is a screw that reveals a service hatch that allows access to adjust the rangefinder calibration.


I opened the service hatch and revealed a screw, and a larger screw with notches underneath it. I loosened the top screw. However I can't figure out what to do to adjust the rangefinder calibration. I seem to only have made it worse.


See pictures. What do I do with these screws to adjust the rangefinder image left/right?

Is the screw with the slots eccentric? Does the edge of the outer screw seem to be thicker on one edge than the other?
If it is, I believe you may have found the culprit. It's not going to take much movement to fix it or create more of a challenge.

John Koehrer said:

Is the screw with the slots eccentric? Does the edge of the outer screw seem to be thicker on one edge than the other?
If it is, I believe you may have found the culprit. It's not going to take much movement to fix it or create more of a challenge.

Click to expand...

Slot is not eccentric on outer screw with slot...turning it doesn't seem to do anything. I tightened the main screw back up and it fixed callibration back to how it was, which was just slightly off. Apparently I need to move the whole rangefinder mechanism to achieve the same effect. Unfortunately one of the screws is stuck....I will give it a few hours sitting with some wd-40 dripped on it and take a break.

Careful with the WD40. I don't use it anywhere a camera. Clock or watch oil is the better solution
I didn't know about using it as a penetrant I'm too biased about keeping it away from the camera bits.