"I would strongly recommend the zoom telephoto AF70-300 mm Macro Autofocus Lens. I used it on the deer and wild turkeys in my backyard. It was easy for a person with arthritis to use. Loved the autofocus." bhphotovideo.com
"It's very likely the single most importat telephoto lens to have, it works wery well with 1.4x conventer." bhphotovideo.com
"Great zoom, excellent clarity!! It goes perfect on my canon T2i." bhphotovideo.com