Gentlemen, I have a 57980 VX3 4.5-14x50 Matte B&C which I am unable to use. I just got this scope 2 days ago and looked thru it for 30 minutes and returned it to the box. I discoverd that my right eye does not focus as good as it use too, my left eye is fine, but that doesn't do me any good. Beyond 350 yrds everything is to "blured" for me to see good, my 25 yr. old son said it looks fine to him. I just got e-mail today from Leupold, in which I asked them if they could put an AO on it for me and they said no, not after the scope has been assembled. So I had to order a different scope with a AO for my feeble eyes today. I would like to get what I have into it. $565 and I will pay the shipping in the Lower 48.