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Alstar Parfocal Telescope Eyepiece Rings Review

3

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Average

Revainrating 4 out of 5  
Rating 
3.8
📷 Camera & Photo Accessories

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Description of Alstar Parfocal Telescope Eyepiece Rings

With parfocal ring equipped telescope eyepieces you can change magnifications quickly and easily. Eliminate the need to make focus adjustments when changing telescope eyepieces. This set of 2 Alstar Parfocal Rings lets you make a set of non-parfocal 2" telescope eyepieces parfocal for more efficient observing. They are made of precision machined aluminium with black anodizing. Also useful for setting focus point of calibration eyepiece used for focusing an imaging or guide camera.

Reviews

Global ratings 3
  • 5
    2
  • 4
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  • 3
    0
  • 2
    1
  • 1
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Type of review

Revainrating 5 out of 5

Amazing Rings for Telescopes!

I recently picked up a set of universal telescope eyepiece rings from Alstar and I couldn't be happier with them! My analysis of this product showed that they are very high quality and fit snuggly on my eyepieces. I didn't need to fiddle with them at all once I had them in place .They are also quite durable and made from excellent materials that should last me for years to come. The only negative thing I can say about these RINGS is that they are a bit expensive, but considering how great they…

Pros
  • Easy to install and use
Cons
  • May require adjustment for some telescopes

Revainrating 2 out of 5

Disappointing Eyepiece Rings

These rings proved to be ineffective for my needs. Through trial and error, I found that they caused more frustration than enhancement to my photography. While the design was visually appealing, the poor electronics and lack of clear instruction made them difficult and impractical to use..

Pros
  • Visually appealing design.
Cons
  • Poor electronics, lack of clear instruction.

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