Review
This ultra wide lens is a wonderful lens to have, but it needs to be used wisely to obtain the best from it. The Canon EF-S 10-22mm f/3.5-4.5 USM Lens can create impressive and dramatic photos or very dull and flat ones. The main issue is the difficulty in composition, using this range creates a lot of background. Care must be taken in understanding what works with this lens. Close up shots can have great depth with this lens.

I’d recommend the Canon EF-S 10-22mm f/3.5-4.5 USM Lens to suit anyone looking for an addition to their every day zoom lens as you can get very creative with it. A little feature I like about this kit is that even though its a zoom lens the actual length of the lens remains the same. The front of the lens moves within the lens casing. Build quality is solid throughout and the USM is a welcomed feature.

Image quality is generally very good. One minor issue is the distortion and sharpness at the edges. A common application I use this lens for is photographing scenic roads, I’ve notice the quality of the image at the road edges sometimes needs a little work or cropping.

Accessories

To avoid vignetting when at 10mm with a filter attached I would advise a slim profile filter Hoya 77mm Pro1 Digital UV Filter. Also the Hoya 77mm PRO1 Digital Circular PL Filter polarising low profile filter is a good investment as the filter size of the EF-S 10-22mm Lens is the same as some popular canon lenses “24-105″, 28-300, 70-200, 100-400.

The Canon EW-83E Lens Hood can reduce lens flare – but the main advantage I found with it is to protect the lens and filter. When taking photos behind glass (ie in buildings or in transit) its a nice barrier to rest on to minimise reflection and damage. A note of caution in fitting the hood – make sure it is attached correctly, because if its not 100% on the thread the hood will show in your photos and you may not spot the hood in your view finder due to the 95% view on EF-S fitting range of Canon cameras.

Pros:

• Great for creativity.
• Common filter sized lens.
• Affordable price.
• Zoom does not extend the lens length.

Cons:

• Only compatible with APS-C sized bodies.
• Greater care required for composition.