Sigma 135 mm-400 mm f/4.5-5.6 DG APO - any good?

[RichardC27]

Is this lens any good? It will be used mainly for taking motorsport shots, so fast AF and good optical quality at the more extreme end of the zoom range is a must. It would be used with a Canon EOS400D body. I'd love to stick some L series glass on the front of my camera, but that's a little outside my finances at the moment. Any experiences using the lens, or any alternatives you can suggest, would be greatly appreciated. I'm currently using a very old Canon 75-300mm f4-5.6 USM II.

 

[rusty]

Just sold mine today , felt it was a little soft at the extreme end , AF wasn"t as fast as an older Tokina 80-200 F2.8 that I have .
Going for the Sigma 100-300 F4 Lens.

 

[RichardC27]

Well the other lens on my list is the Canon 75-300mm f4-5.6 IS USM, which I've read conflicting reports of. Some have said it's a great lens for the money, some have said it's awful and avoid at all costs.

 

[rusty]

Some one told me buy the best possible lens that you can cos you will regret it if you dont and get frustrated with cheaper/lower quality glass and end up spending more anyway if you stick with the hobby.

 

[RichardC27]

That's a little out of my price range, very nice lens though! Ideally I'm looking for below £400, and I know at that price level I'm going to have to compromise on quality, but there's nothing I can do about that at the moment.