Excerpt: With framing equivalent to a 16-35mm zoom on a full frame body, the Canon EF-S 10-22mm f/3.5-4.5 USM Lens provides EF-S compatible camera body owners with the ultra-wide angle focal lengths so often missed on this small-sensor format camera.
Conclusion: Canon's ultra-wide offering is very impressive, with excellent edge sharpness for this type of lens. There is a small amount of chromatic aberration at the edges, but this can be easily fixed in RAW editing software such as Adobe Lightroom. At just 385g this is a light lens in the wide-angle group by quite a margin, and that's a very important feature for landscape lenses.
Excerpt: The EF-S 10-22mm f/3.5-4.5 USM from Canon has a 35mm equivalent focal range of 16-35mm, offering a very wide, corrected field-of-view. The lens is relatively compact in design, with a zoom ring at the front and a small manual focus ring at the rear. The lens uses Canon's USM (Ultrasonic Motor) too, so expect near-silent autofocus, but a lens hood isn't supplied - it'll set you back another Â£25.
Conclusion: Kanon lækker vidvinkelobjektiv, som tager nogle virkelig flotte billeder og man får det hele med. Fokus-motoren virker ekstrem god, den er lynhurtig til at fokusere og nem at bruge med manuel fokus. Med manuel fokus er der ret kort fokus gang i dreje grebet, og det har frigang ved stop så man ikke vrider motoren i stykker.