I have a CVA wolf with a T/C scope from waly world, I know scope is cheap , but all i can get for now. gruops are greaat . 3 shots touching at 100 yds. problem is I wear glasses, with my other scopes i havve a clear picture with the glasses on. T/C scope picture is a little fuzzy with the glasses on, lift them and sight picture is clear as a bell. Am i not adjusting the back focus right or is cheap is cheap. other than that scope is fine.