Deer travel at different times on different days. Sometimes I see them well before and after legal shooting times. All I can say is that my scopes gather plenty of light for all legal shooting hours. What more do I need than PLENTY? After 49 years of hunting, I have never seen a time when I needed more scope than I was using. I will sure stay with the class of glass I am using and save the money for other things. Just as there is ENOUGH gun, There is also enough scope.Just never could see wasting anything.

Dan. I have also had good results with Swift scopes.Have not used many Sightron yet.