Advanced Telescope Collimation Cap
Description
Improved collimation cap for aligning Newtonian reflector telescopes - For 1.25" tube - Centered opening (1.5 mm) with cone-shaped tube to stay on axis (10 ° total opening angle) - Eyecup can be clipped or glued onto the cap (0.05 mm radial learance) - Two versions: 1.5 mm and 2.0 mm diameter opening Happy printing!
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