Gosky Universal 1.25 Inch Collimation Eyepiece for Newtonian Telescopes with Cross Hair
Gosky universal 1.25 Inch collimation eyepiece with cross hair for Newtonian telescope alignment.
Price range: See on Amazon
What we liked
- + Cross hair helps center the secondary mirror accurately
- + Universal fit works in most Newtonian focusers
- + Simple tool with no batteries or calibration needed
Trade-offs
- - Collimation cap style tools are less precise than a full Cheshire for fine tuning
- - Instructions for beginners may be minimal
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