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Hello All, I have had an eclair ACL for a few years, and recently discovered that my newly acquired lens projector uses the same TS mount as eclair, indexing pin and all. Interestingly I have also seen older century collimators use the same threads/mount system. I'm not certain if the back focus / FFD is exactly the same, but its not a huge issue for the projector as its flange is adjustable. I'm wondering if anyone knows the thread pitch/diameter of the eclair mount. I'm no machinist, but I can model something easy enough. Fair quality machining from China is getting cheaper and cheaper. Id like try and make a very simple L39 mount for both my ACL and projector. As a side note, if anyone knows of, or is hanging onto any old century collimator mounts, or CHROSZIEL TP4 projector mounts, they should work on the ACL, although some PL mounts I tested would require a bit of clearance work.

Does anybody happen to know where I might be able to find a working 400' magazine for an Eclair ACL II? I haven't been able to really find any on ebay recently. Thanks!