My Sony 70-200 2.8 g was acting kinda funny ever since I bumped it into a hard surface awhile ago. This resulted in back focusing almost on all of my images. I sent it to Laredo, Texas Sony repair shop, and I just got it back today. They said there was no issue of back focus, but they did replace some parts and adjusted some areas. When I tested the lens today, I found everything to be tack sharp in all focal lengths. No more back focus! Anyways just wanted to share my positive experience with this repair.. My warranty is almost up, and I am considering buying an extended warranty, just in case.![]()