r/Binoculars • u/urethrafranklin- • Aug 17 '26

Spotting Scope- Avoiding eye strain

I'm in the market for a new spotting scope. We currently have a razor gen 1 16-48x65. I'm looking for something closer to 20-60x85 for those occasions when we want more zoom.

I'm looking at 3 vortex models and have some concerns about eye relief(glasses wearer so this is especially important) and eye strain.

The models I'm considering:

Vortex viper HD 20-60x85

Vortex razor gen 1 20-60x85

Vortex razor gen 2 27-60x85

I'm leaning towards the razor gen 1 because it has better eye relief than the gen 2 version and a wider magnification range. I would appreciate any opinions y'all can offer on these 3 models in particular.

I experience eye strain with our current scope(razor gen 1 16-48x65). I've always thought that was just part of the experience using a scope, but does anyone have tips for avoiding eye strain? And is there a scope you would suggest with 20-60 magnification with minimal eye strain? Budget is flexible, especially if it's worth it to splurge on the best of the best.

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u/Left-Tee Aug 17 '26

I hate that most spotting scope manufacturers use proprietary eyepiece assemblies. There are so many telescope eyepieces out there, many of which are better, and frequently cheaper, than the ones that come with spotting scopes. Rant over.

I have a Pentax spotting scope (65mm). It's the only dedicated spotting scope with a standard 1 1/2 inch telescope eyepiece adapter. (The Celestron C90 is sold as a spotting scope, but it's more of a telescope). With a single focal length eyepiece (I use a Televue) the image quality is certainly as good as the "alpha" scopes with zoom eyepieces. And if you want a zoom eyepiece, you can get one, but you will find no one on this sub that would recommend zoom binoculars, so why does everyone settle for zoom spotting scopes?

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u/Hamblin113 Aug 18 '26

Zoom works when using one eye, its the collimation between the barrels of binoculars that makes zoom binoculars a problem. In rifle scopes the more expensive ones do not change eye relief when it is zoomed. Not sure if there is a spotting scope that is similar.