Re: USO vs Optolyth spotting scope?
Doug C,
If I understand you correctly you want an evaluation of two spotting scopes that have really vastly different functions and capabilities.
Yes, they are both spotters, but the USO has:
Reticle for ranging
60MM Objective
Weight 32 oz.
Eye relief of 63.7MM
The Optolyth has:
No reticle with the 20-60 eye piece
(Note: Optolyth does have an an optional 30x ranging reticle eye piece available in the $500. range)
80MM Objective (and HD glass available)
Weight 49 oz.
Eye relief of 20MM
Now, Optolyth is a great spotter for looking at game, and bullets holes, or for birding and you have a choice of either straight or angled eye pieces.
It is large and heavy. It has no ranging capability at all (w/the 20-60 eye piece). And the eye relief is on the short side if you are wearing glasses of any kind. And it costs around $600. more than the USO.
The USO is smaller, lighter, has full ranging capability, and is cheaper. It will be dimmer than the Optolyth, it's resolution in resolving bullet holes, game and birds will be inferior.
In short. If you need ranging capability at all, then the USO wins by default.
However, if you can live with the size, then the Optolyth 80mm w/HD glass and get the optional 30x fixed ranging eye piece as well as the 20-60 eyepiece, then the Optoplyth @ near $3K will be a superior spotter to the USO for all activities. But understand we are talking 3x the price, so it should be a better spotter.
These two are really apples and oranges, IMHO
Bob