lawrence90
New Member
okay, will go with the 55-250mm one!Go for the 55-250. It's a newer lens, so it has a newer generation of IS that corrects more handshake, than the older 70-300 f/4-5.6 IS USM. The 70-300's USM is also not full ring USM, so while it's rather silent, it's not as fast as ring USM that you'll find on L lenses; personally I don't think the 70-300 is very worth it, compared to the 55-250, and since both produce very sharp images, why not go for the cheaper option any way.

Suggest you get the EFS 17-55 f2.8 IS. With 40D and this len, no need to change for years.
Why some says 18-55mm (kit1) (this has IS right?) while some says 17-55mm?
i know its mroe exp and has constant aperture and is wider...