Lumicon's LP1025 Step Ring has 52mm exterior/male threads and 48mm interior/female threads, both with thread-pitch of 0.75mm.
Jan 31, 2015
Exactly what I neededPros:
Accurate,Strong Construction,Easy to UseCons: Comments:
I bought 2 of these to turn my Xagyl USB 8 filter wheel's strange choice of connecting threads, M52, into something a bit more manageable.
Very nicely made, but if you decide to use them as I did with Xagyl, be sure to put the tiniest amount of oil on the thread to stop it jamming tight.
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