I am looking to upgrade my kit lens on my 350D, and am considereing these two lenses...obviously the Sigma give me some wide angle, whereas the Canon has a zoom advantage. I am looking for the best quality, which will result in the better images. I will sacrafice wide angle or zoom for better photos.
Two quick questions, what is the difference between USM and HSM? Is HSM just Sigma's nomanclature for the autofocus motor which is USM in Canons? Also, I found this review:
But this review doesnt mention the OS or HSM on the lens I found here:
Are the the same lens? Is the one with OS and HSM an upgraded lens? If they are the same lens, I think that will push me towards the Canon.
Anyway, both lenses have IS, which is one feature I am looking for. The Sigma comes with a lense hood, the Canon does not. The Canon has a larger filter size, is this good (it means more expensive filters tho)? Both are $400 USD.
Has anyone had experience with either of these lenses? I saw some posts on the Canon, and it seems to be a rather solid lens to me...what are your thoughts? I am planing a trip to Denver next week and hopefully will have one of these two lenses with me and will be able to post pics and a review when I get back =] Thanks!!