Assuming money is not an issue, which ultra wide-angle lens would be the best choice for a Canon 350D, the Canon EF-S 10-22mm f/3.5-4.5 USM or the Sigma 10-20mm f/4-5.6 EX DC HSM?
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Links to some interesting user reviews and opinions below.
- Read through this very extensive comparison test, where it’s concluded that the Sigma gives the best bang for the buck and comes with accessories (such as the petal lens hood) that are optional extras with the Canon. Note also that the Canon 10-22mm, being an EF-S mount, is not compatible with the older Canon 10D / D60 / D30 digital SLR cameras; EF-S also means that the Canon 10-22mm will not physically fit full-frame Canon SLRs. Optically, the Canon has a slight edge, although this difference is not apparent in prints, and certainly not after shooting and postprocessing RAW images from either lens
- Imatest results of the Canon 10-22 and Sigma 10-20
- A short list of pros and cons of both lenses
- You might fear the risk of getting bad copies of the Sigma lens, but buying from big stores mitigates this factor by giving you the advantage of a return policy.
- The Canon 10-22 appears to have a darker / richer colour than the Sigma 10-20
- Autofocus performance afforded by the HSM technology on the Sigma is equivalent to the Canon’s USM
- A bit difficult to justify the extra USD200 for the Canon 10-22
- Be sure to test the Sigma lens for edge sharpness and other issues before purchase. Also, the Canon 10-22 lens should hold its resale value relatively better than the Sigma
- For some reason, photos taken with flash come out brighter with the Sigma 10-20mm than with the EF-S 10-22mm lens — read this thread started by PeterY for details.