Curly one word of advise about a Sightron scope. If you can, find a "local dealer to buy it from. If you buy it from them and the scope ever screws up you take it off put it back in the box, take it to the dealer that you bought it from and they hand you a new scope.
Sightrons have an "over the counter life time warranty". If you buy it off the internet you will have to send it back to Sightron for any warranty work.
Now that is out of the way the Sightrons that I have looked through are extremely clear. I have shot a coyote using one on my cousins 25-06 and it was fantastic in semi low light conditions. I sometimes wonder just how much better a Leupold can transmit light as there is only so much light that a human eye can use and I can not tell a difference in the two when they are side by side. Brightness and clarity are far more important.
And yes guys that means I am knocking the over priced Leupolds so you can flame away if you'd like, as you will not change my mind about them. I detest having to pay in advance for any warranty work that I might have to have on down the line.......>>>>>>>>>James L.