Check this out if you are looking to buy a new or used scope. I currently have 4 scopes that I have compared at low light conditions, low and high power, close and far. They are a used Bushnell 3.5-10x42 scopechief, a used Pentax Lightseeker 30 4-16x50, a new Weaver Super Slam 3-15x42, and a new Burris Signature Select 4-16x44. Here is the rankings as the above tests warranted according to light gathering, clarity, overall picture when looking through the scopes....in 4th place is the Weaver, good light gathering, great build quality, not as crispy clear as others, overall picture is smallish and like looking through a tube. In 3rd place is the used Bushnell, nice large picture, clear and bright, good quality build, best buy for bucks. In 2nd place is the new Burris, only superior to the Pentax in build quality, is the new style body, very bright, big picture, very clear at higher powers, nice, nice, nice. That leads us to the 1st place Pentax with it's best overall impression when you look through it, these are the old Burris Signature bodies that were a fine scope, the build quality not as good as the new Burris design but the glass on these Lightseekers is awesome!!!! I also had a brand new Pentax Lightseeker 4-16x44 that I sent back because the power indicator dot did not line up with the power indicated. In other words, 4 power indicated 5 and 16 power indicated 17. That new Pentax was also compared to the Weaver and was also superior. The bottom line and the reason I posted this is to enlighten hunters and shooters as to what is available in quality optics. Not everyone has the opportunity to compare side by side top line scopes as I did. My findings are not disputable as these are real world comparisons done at my home as the sun is rising in the AM on many different occasions. Many variable power scopes at different price levels show well at low power, but when the power gets cranked up is the uh-oh moment where the clarity diminishes and the picture darkens significantly. Also eye relief can decrease as well...not so on the scopes I tested. I hope this post helps someone in their search for a good scope. I might add one last but important item...Warranty! Pentax and Burris have tremendous warrranties...check it out. By the way...I bought the Weaver with all intentions to mount it on my 300wby. I got a smoking deal on it and after I bought it I got a smoking deal on the above mentioned New Lighsteeker. That is when the comparisons began and the superiority of the Pentax/Burris were established. I have also owned Leupold vari-x 3 and the Pentax/burris is superior...Just the facts!!!!