suggestion for wideangle lenses...

[wildcat]

I used to own the Sigma 10-20 f4-5.6. It is indeed really sharp. However, it is best used at 15mm onwards. Cos at 10mm, you can see some serious distortion esp at the corners.

Hmm.. buy a 10-20mm, use mostly from 15mm onwards?
If I wanted to do that, might as well carry kit lens around