Quote:
Originally Posted by ray
My set of Orion 2" LRGB filters were made in Korea and definitely are not the standard M48 x 0.75 thread, they screw about half way in and then jam. I am thinking that they have an M48 x 0.5 thread.............
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Hi Ray,
The reason they don't screw all the way in is because of slight differences in machining tolerances and specs and the thickness of the anodising. On some (not many) female threaded accessories they will screw all the way in.
Cheers,
John B