Gender changer. Allows you to convert a female 1.25" filter thread into a male 1.25" filter thread (thread specification M28.5x0.6). Has a knurled grip in the center with a very short optical length of 1mm, and male 1.25" filter threads on either side. Made of black anodized aluminum. Maximum outside diameter = 31.7mm (1.25") so this will slide into 1.25" focusers. Total length is 6mm (0.24").Blue Fireball part number: G-1M
Jan 8, 2018
perfect fit for standard eyepiece barrelsPros: Cons: Comments:
this adapters fits perfectly in the barrel of a 1.25" eyepiece with M28.5x0.6mm filter thread.
it could use an extra mm of length (or two) of thread, to provide more strength to the assembly. but overall, it does the job, and it slides right through the holder tube, which is just what you need when you connect two barrels this way.
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