glazer,
I've had a couple Leupo 6x42 and like them for several reasons. They are generally "bright" compared to scopes of similar price range as JB has noted in his low light scope evals. But even so, it pales in comparison to even low to midrange binos. In many situations such as dusk, or in dark timber with lowlight the 6x42 is still lacking, even if better than average.
One of the "brightest" scopes I've used was a Kahles 2-7x. It was literally like night vision compared to anything else. Exit pupil is a factor, number of lenses, quality of lenses. I think we sometimes get wrapped up in objective size, magnification, and brand but I suspect that lenses can also be tailored to wavelengths so that some scopes actually do better than others in low light even if the "numbers" don't say its so.
Based on Stick's review, it seems like the 4x SWFA has similar low light performance PLUS the lit reticle which allows for aiming w/o ruining night vision.
J
Last edited by 4th_point; 10/09/15.
