Leica III camera focusing problem
Yes, if the vertical misalignment is small, say, about less than a tenth of the image size that is misaligned vertically, then try rotating the 'lens' that covers the front left (as viewed from front of camera body, in upright position) rangefinder window.That is, the front RF window near the slow speed setting dial. In order to do so, you will need to unscrew the decorative chrome bezel first. Unscrew in counterclockwise direction. Do not use pliers, etc. to remove bezel, or you will possibly distort and/or mar the chrome finish. Instead wrap bezel with two, or three layers of making tape, making certain masking tape is not contacting the body of the camera, but only the bezel. Usually, bezel can now be unscrewed by hand only; if not, use pliers gently with the masking tape acting to protect the bezel's finish.
Once the bezel is off, the lens (it's actually a glass wedge prism) can be rotated using the prongs of a tweezer inserted in the two notches of the brass ring encompassing the 'lens', or glass wedge. First, rotate in both directions, cw and ccw, in small angles to determine which direction and how much wedge rotation is required to bring the two rangefinder images into coincidence vertically.
Reassemle in the reverse order.
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