The Canon EF-M 11–22 f/4–5.6 IS STM Wide Angle Zoom Lens is an excellent companion for your EOS M series digital camera. Offering a wide angle of view, it's an excellent lens for taking group photos in tight spaces and landscapes. Built-in Image Stabilization helps enhance performance, even in low-light situations, and is especially effective when capturing HD movies thanks to the lens's Dynamic IS. Specialized Canon optics help ensure high-resolution, sharp photos and movies. A refined, quiet autofocus system helps maintain focus with extraordinary speed, helping to ensure sharp photographs and HD movies.
FEATURES:
18 - 35 mm comparable focal length on a APS-C Format Camera.
Wide-angle zoom lens for EOS M series digital cameras with Optical Image Stabilizer for up to three equivalent stops of shake correction.
Lens retraction mechanism shortens the length of the lens and a compact, lightweight design allows easy portability.
Rear focus system and built-in stepping motor (STM) help provide smooth and quiet continuous autofocus when shooting video with an EOS M series digital camera.
Dynamic IS (Movie Shooting Mode only) helps deliver a wide image stabilization correction range, making it ideal for shooting while walking.
Two aspheric lens elements and one UD lens element deliver superb image quality from the center to the periphery.
I have used this lens extensively for travel and street photography both with the EOS M3 and now the M5. I also own the EF 16-35 f2.8 lens for use with my EOS 5D MkII. These types of wide angle zooms are well suited for landscape and travel photography. The wide angle capability will allow you to capture images in tight quarters as well as getting spectacular landscapes. It would be nice if the lens was faster, but I suspect that this is difficult to achieve with a smaller sensor. I usually shoot 1 or 2 stops down from wide open. This seems to produce the sharpest image. Stopping down will not improve depth of field as this type of lens has a short hyper focal distance anyway. Higher stops will cause a loss of sharpness in the foreground. Perspective will need correction in some cases and I suggest framing shots in such a way as to allow room in the frame for making corrections without cropping the subject. As with any wide angle lens you can capture in a single frame something that is wider than the human eye's field of view. All in all a great creative tool.