Review on 📷 Sigma 10-20mm f/4-5.6 EX DC HSM Lens for Canon DSLR Cameras: A Powerful Photographic Tool for Expansive Perspectives by Dave Sidhu

I was looking for an ultra wide angle lens for my D90, it was somewhere between this and the more expensive Tamaron. Focal Length: The 10-20mm range is the perfect complement to kit lenses and standard zoom lenses. Aperture: f/4-5.6 is on par with the competition in this price range, meaning it's not a big deal for landscape photography. However, it's nice to have overhead space if you need to use it handheld or in low light. Autofocus: The autofocus mechanism is very fast and almost silent. Great lens for the price, in fact it usually stays with my camera. makes a really nice and interesting picture when not used for landscapes.