Lens review

Canon EF-S 10-22 mm f/3.5-4.5 USM

11. Summary

Pos:

• great image sharpness in the center of the frame,
• very well corrected astigmatism,
• very well controlled distortion (as far as straight line breaking is concerned)
• solid functioning and quiet autofocus,
• sturdy build,

Cons:

• large vignetting in the whole focal length range and even after stopping down the lens.
• chromatic aberration specially visible for 10 mm focal length
• slightly too large coma

The Canon EF-S 10-22 mm is a specific lens targeted for wide angle lovers and for those not wanting the fish-eye class of lens distortion. APS-C detector digital camera owners had to wait long for the opportunity of photographing at a wide angle of 100deg or more. Thanks to the Canon 10-22 mm this became a possibility and, it seems, was worth waiting since the picture quality is very high. If we add Canon's famous good quality build and USM motor we are looking at a lens worth taking into consideration.

Sample shots:

Camera: Canon 20D Parameters: 22 mm, f/4.5, exp. 1/1600 sec, ISO 200 File: JPG, 3504x2336 pix, 2.1 MB	Camera: Canon 20D Parameters: 10 mm, f/8, exp. 1/200 sec, ISO 200 File: JPG, 3504x2336 pix, 5.6 MB	Camera: Canon 20D Parameters: 10 mm, f/10.0, exp. 1/250 sec, ISO 200 File: JPG, 3504x2336 pix, 3.7 MB
Camera: Canon 20D Parameters: 10 mm, f/3.5, exp. 1/1600 sec, ISO 200 File: JPG, 3504x2336 pix, 3.6 MB	Camera: Canon 20D Parameters: 22 mm, f/4.5, exp. 1/50 sec, ISO 400 File: JPG, 3504x2336 pix, 3.0 MB	Camera: Canon 20D Parameters: 10 mm, f/4.0, exp. 1/60 sec, ISO 400 File: JPG, 3504x2336 pix, 2.7 MB
Camera: Canon 20D Parameters: 10 mm, f/8.0, exp. 1/400 sec, ISO 100 File: JPG, 3504x2336 pix, 2.4 MB	Camera: Canon 20D Parameters: 14 mm, f/5.6, exp. 1/1000 sec, ISO 100 File: JPG, 3504x2336 pix, 2.7 MB	Camera: Canon 300D Parameters: 10 mm, f/8.0, exp. 1/640 sec, ISO 100 File: JPG, 3072x2048 pix, 2.2 MB
Camera: Canon 300D Parameters: 10 mm, f/8.0, exp. 1/400 sec, ISO 200 File: JPG, 3072x2048 pix, 2.3 MB	Camera: Canon 20D Parameters: 10 mm, f/9.0, exp. 1/800 sec, ISO 200 File: JPG, 3504x2336 pix, 3.0 MB	Camera: Canon 20D Parameters: 10 mm, f/8.0, exp. 1/160 sec, ISO 800 File: JPG, 3504x2336 pix, 2.8 MB