Hey everyone, first post here. I got all gung ho about buying a new camera but then I started thinking that maybe I should just upgrade some of my lenses. I'm using an EOS Rebel XT circa '95 and a couple of kit lenses including the EF 75-300mm 1:4-5.6 III USM. Pretty much everyone says that it's a pretty bad lens. Would the EF-S 55-250mm F 4.0-5.6 IS STM be a good replacement or should I be looking at a much better, and much more expensive lens to make the swap more worthwhile? I don't want to replace one mediocre lens with an equally mediocre one. Thanks in advance for any advice.