G'day Simon
Its for Trevs GSO RC and I am not sure which standard they will be using. pitch will be 1.0mm @60 degrees but after that I really have no idea. If you can give me some options when I measure it I should be able to work the rest out from there. Being a visual back the threads are going to have to be a very close match depth wise or to focuser will just flap around in the breeze.
Mark
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