I am trying to decide between the 20-60x60mm and 20-60x80mm. I have read a lot of reviews. Most are positive, but a few say above 40 power hard to focus. Hard to tell which glass they are talking about as it seems they are all bunched together. $500.00 is my max budget really above it, but I do not have spotting scope. I plan to use out West on mule deer and antelope. I hope I can reduce some travel distance by using glass instead of my feet. This purchase will be of no use to me hunting my home state. Might help at the range. So if you have experience with either of these please let me know.