I have had a couple of these but no more. The first one,a 3X9 was ok. The second one , a 6X24 was poor. Blurry edges and very tough to sight in. 1 click could be up to 3 " and sometimes 4 clicks gave no change. A friend also has a 3X9 with the adjustment problem and the adjustments move backwards to what is labelled. Seems they are of poor quality control but the price reflects this.