Compare lenses

Canon EF 11-24mm f/4L USM vs Canon EF 17-40mm f/4L USM

The Canon EF 11-24mm f/4L USM and the Canon EF 17-40mm f/4L USM side by side, computed from this guide's catalogue.

Which to pick

Pick the Canon EF 11-24mm f/4L USM if you want a wider view (from 11mm equivalent). Pick the Canon EF 17-40mm f/4L USM if you want more reach (to 40mm equivalent).

Still torn? Ask the guide about the Canon EF 11-24mm f/4L USM and the Canon EF 17-40mm f/4L USM

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 11-24mm f/4L USM	Canon EF 17-40mm f/4L USM
Maker	Canon	Canon
Focal length	11-24mm (zoom)	17-40mm (zoom)
Full-frame equivalent	11-24mm	17-40mm
Maximum aperture	f/4	f/4
Made for	Full frame	Full frame
Mounts	Canon EF	Canon EF
Stabilised	no	no
Autofocus	yes	yes
Zoom range	2.2×	2.4×
Cameras it fits	22 in this guide	22 in this guide

Focal range, in full-frame terms

Canon EF 11-24mm f/4L USM: 11-24mm.

Canon EF 17-40mm f/4L USM: 17-40mm.

Aperture

Canon EF 11-24mm f/4L USM: f/4 wide open.

Canon EF 17-40mm f/4L USM: f/4 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

22 cameras in this guide take both, so either works on the same body.