Compare lenses

Canon EF 16-35mm f/4L IS USM vs Canon EF-S 10-18mm f/4.5-5.6 IS STM

The Canon EF 16-35mm f/4L IS USM and the Canon EF-S 10-18mm f/4.5-5.6 IS STM side by side, computed from this guide's catalogue.

Which to pick

Pick the Canon EF 16-35mm f/4L IS USM if you want a brighter f/4 (0.3 stops more light), for dim light and softer backgrounds; more reach (to 35mm equivalent); coverage of full frame, so it suits the larger-sensor bodies too; and a fit on more cameras (22 against 14 in this guide). Pick the Canon EF-S 10-18mm f/4.5-5.6 IS STM if you want a design for APS-C, which usually means smaller and lighter.

Still torn? Ask the guide about the Canon EF 16-35mm f/4L IS USM and the Canon EF-S 10-18mm f/4.5-5.6 IS STM

Specs side by side

Rows that differ are in full colour; the better value is marked where one is better by any measure.
Spec	Canon EF 16-35mm f/4L IS USM	Canon EF-S 10-18mm f/4.5-5.6 IS STM
Maker	Canon	Canon
Focal length	16-35mm (zoom)	10-18mm (zoom)
Full-frame equivalent	16-35mm	15-27mm on APS-C
Maximum aperture	f/4brighter	f/4.5-5.6
Made for	Full frame	APS-C
Mounts	Canon EF	Canon EF
Stabilised	yes	yes
Autofocus	yes	yes
Zoom range	2.2×more range	1.8×
Weight	615 g	not listed
Cameras it fits	22 in this guidefits more cameras	14 in this guide

Focal range, in full-frame terms

Canon EF 16-35mm f/4L IS USM: 16-35mm.

Canon EF-S 10-18mm f/4.5-5.6 IS STM: 10-18mm on APS-C, like 15-27mm.

Aperture

Canon EF 16-35mm f/4L IS USM: f/4 wide open.

Canon EF-S 10-18mm f/4.5-5.6 IS STM: f/4.5 wide open.

Each opening drawn to scale against f/1.4: a smaller f-number lets in more light and blurs the background more.

Field of view

How wide each sees, at each end, on the sensor it was made for.

Cameras they fit

14 cameras in this guide take both, so either works on the same body. In all, the Canon EF 16-35mm f/4L IS USM fits 22 and the Canon EF-S 10-18mm f/4.5-5.6 IS STM 14.