Recent content by Jack Russell

Thanks Guys, I will have a look at the Sigma's

Hi Guys, I have just purchased a Cannon 400D with a Cannon 18-55 lens. I would like an additional 200 or 300mm telephoto lens, I have looked at the Cannon EF90-300mm non USM and the Cannon EF75-300 USM.......What is the advantage of the USM over the non-USM lens and can anyone recommend...