These extension tubes fixed my problem with using Lomo objective lens on a vintage Zeiss microscope. The Lomo lens were about 13mm too short and the extension tubes fixed the problem. I do think that the extension tubes were priced way too high, but I didn't find any that were cheaper.
Verified purchase: Yes | Condition: New
The internal thread size is NOT the standard RMS. It is a bit smaller. My RMS objective would only thread 1 or 2 turns into this adapter. That was enough to use it, but that made the overall length a bit too long because of that. At least the external thread size was correct and threaded into the microscope nose piece correctly.
Verified purchase: Yes | Condition: New
Aluminium so fairly soft but does the job well enough. Complies with the RMS specification so not a large reserve of material to trim away and difficult to cut a lead in without the equipment and skills needed to make one in the first place! But as I said accurate and well finished - just don't rely on customising it afterwards. Good company to deal with too.
Verified purchase: Yes | Condition: New
Fit, finish and overall design is outstanding. Perfect parts!
Verified purchase: Yes | Condition: New
The threads on the tube I received were a little rough and sharply-cut, and initially a very tight fit. But a little working, and they have eased up to an excellent smooth and rigid fit. I particularly value the available choice of lengths.
Verified purchase: Yes | Condition: New
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