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zmanphotog · Joined: 04 Jan 2003 Posts: 27 Location: Oklahoma

I am attempting to replace the beamsplitter in my Kalart Rangefinder. A few questions.
1. I have made a shim since the new splitter is thinner. Does the glass go to the front of the guide?
2. I realize the mirror surface needs to face the front. How can I tell which is the mirror surface on a beamsplitter? I did a test with a light, but it's hard for me to tell which surface is brighter.
I've attached a photo of the rangefinder.

Thanks,
Mark Z

45PSS · Posted: Tue Mar 19, 2013 6:09 am Post subject:

Frame-shim-mirror, the front edge of the mirror needs to be as close as possible to where the original was.

Hold the beam splitting mirror at a 45° angle, top rearward and side lit, the coated side will be shinier when to the front.
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