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Review on Alstar Parfocal Telescope Eyepiece Rings by Mark Toth

Revainrating 5 out of 5

Works well in eyepiece recesses and narrower eyepieces

Used had to be placed in the recess of my Meade UWA 20mm and on the cone of my Explore Scientific 30mm. Rings are tight. Very good product and price.

Pros
  • Telescope eyepieces equipped with a parfocal ring allow you to change magnification quickly and easily.
Cons
  • Not the best