Canon EF-M 11-22mm f/4-5.6 IS STM Review

Name: Canon EF-M 11-22mm f/4-5.6 IS STM
Brand: canon

August 22, 2013 | Mark Goldstein |

Introduction

The Canon EF-M 11-22mm f/4-5.6 IS STM is a new ultra wide-angle lens for Canon compact system cameras (currently just the EOS M model). Featuring an equivalent focal length of 18-35mm, the Canon EF-M 11-22mm offers a retractable design for greater portability, stepping motor for smooth and quiet continuous AF while capturing video and in live view mode, 3-stop optical Image Stabilizer and Dynamic IS for movies, short minimum focusing distance of only 15cm, circular seven-blade aperture, and a non-rotating front element. The Canon EF-M 11-22mm f/4-5.6 IS STM is available now for £379.99 (surprisingly it's not currently on sale in the US).

Ease of Use

Weighing a mere 220g and measuring 58.2cm in length, the Canon EF-M 11-22mm f/4-5.6 IS STM is one of the smallest and lightest wide-angle lenses that Canon offers. Being an EF-M lens, you can only use it on a Canon compact system camera body like the EOS M that we tested it with, for an 18-35mm equivalent angle of view.

The Canon EF-M 11-22mm f/4-5.6 IS STM lens

Side of the Canon EF-M 11-22mm f/4-5.6 IS STM lens

Despite this being a relatively inexpensive, lightweight lens, build quality is very good. The Canon EF-M 11-22mm f/4-5.6 IS STM feels solid in your hand, thanks to the mostly metal construction, and the metal lens mount is good to see. The focusing ring is quite wide given the size of the lens, but only has a very narrow ridged grip to assist with finger-tip operation. The zoom ring is much wider and covered almost entirely in the same ridged coating.

Side of the Canon EF-M 11-22mm f/4-5.6 IS STM lens

Front of the Canon EF-M 11-22mm f/4-5.6 IS STM lens

Rear of the Canon EF-M 11-22mm f/4-5.6 IS STM lens

On the lens barrel is a lock switch that retracts the lens to its shortest length. You simply need to rotate the zoom barrel to the 11mm setting to extend the lens and start shooting, at which point it measures 74mm, rather than 58mm when it's closed.

The Canon EF-M 11-22mm f/4-5.6 IS STM boasts Image Stabilisation which Canon claims offers an advantage of up to 3 f-stops over lenses without a stabilizer. This is activated via the camera's menu system, rather than an On/Off switch on the side of the lens.

Front of the Canon EF-M 11-22mm f/4-5.6 IS STM lens

Rear of the Canon EF-M 11-22mm f/4-5.6 IS STM lens

The Canon EF-M 11-22mm f/4-5.6 IS STM lens in-hand

Despite being the most expensive lens in the EF-M range, the Canon EF-M 11-22mm f/4-5.6 IS STM disappointly doesn't ship with either a lens hood or a protective bag. It accepts 55mm filters.

Focal Range

At the 11mm focal length the angle of view is 102º 10'.

Canon EF-M 11-22mm f/4-5.6 IS STM Field of view at 11mm

At the 22mm focal length the angle of view is 63º 20'.

Canon EF-M 11-22mm f/4-5.6 IS STM Field of view at 22mm

Focusing

The Canon EF-M 11-22mm f/4-5.6 IS STM lens has quite a wide focusing ring but annoyingly only about 3mm of its width has a textured surface, making it trickier to locate and use in a hurry. There are no hard stops at either ends of the range, making it more difficult to set focus at infinity. Manual override of the autofocusing system is available at any time. Polariser users should be pleased that the 55mm filter thread doesn't rotate on focus.

When it comes to auto-focusing, the Canon EF-M 11-22mm f/4-5.6 IS STM zoom is a fairly quick performer on the EOS M with the latest firmware installed (version 2.02), taking about 0.5 seconds to lock onto the subject. We didn't experience too much "hunting", either in good or bad light, with the lens accurately focusing almost all of the time. It's also a virtually silent performer too, thanks to the built-in STM (Stepping Motor), which makes this lens well-suited to video recording and more candid photography.

Chromatic Aberrations

Chromatic aberrations, typically seen as purple or blue fringes along contrasty edges, are well controlled with this lens, appearing in only a few of our test shots. The examples below show the worst-case scenario.

Light Fall-off

With the lens wide open at f/4 at 11mm, you can see some significant light fall-off in the corners, although the Canon EOS M can automatically correct for it when shooting JPEGs. There's also some obvious barrel distortion too.

Canon EF-M 11-22mm f/4-5.6 IS STM Vignetting at 11mm

Canon EF-M 11-22mm f/4-5.6 IS STM Vignetting at 22mm

Macro

The Canon EF-M 11-22mm f/4-5.6 IS STM is not really a macro lens, but the close-focus point is a useful 15cm from the film/sensor plane, and Canon quotes a maximum reproduction ratio of 0.3x for the lens at the 22mm focal length. The following example illustrates how close you can get to the subject, in this case a CompactFlash card.

Canon EF-M 11-22mm f/4-5.6 IS STM Close-up performance

Bokeh

Bokeh is a word used for the out-of-focus areas of a photograph, and is usually described in qualitative terms, such as smooth / creamy / harsh etc. The Canon EF-M 11-22mm f/4-5.6 IS STM has an iris diaphragm with 7 rounded blades for a pleasing rendering of the out-of-focus highlights. Below you'll find some examples, but you are also encouraged to check out our sample images.