SVBONY SV197 Collimating Cheshire Eyepiece 1.25 Inch for Newtonian Reflector Telescope
SVBONY SV197 collimating Cheshire eyepiece, 1.25 Inch, for aligning Newtonian reflector telescopes.
Price range: See on Amazon
What we liked
- + Passive Cheshire tool gives dependable, repeatable collimation results
- + Budget price makes it easy to keep alongside a laser collimator
- + Works day or night with no electronics to fail
Trade-offs
- - Interpreting rings and reflections takes a few tries to master
- - Check the sight tube length, since it affects centering the secondary
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