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| SM1A4 - Adapter with External RMS Threads and Internal SM1 Threads |
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| Product Summary: |
The SM1A4 thread-to-thread adapter contains an internal SM1 (1.035"-40) thread and an external RMS (0.800"-36) thread. Made of anodized aluminum, it is machined with both threads inline and may be positioned anywhere along a threaded tube. It is typically used to create an objective from an SM1 lens tube. The unpackaged weight of this adapter is 3.63 g.
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