Compare lenses

Canon RF 10-20mm f/4L IS STM vs Canon RF 14-35mm f/4L IS USM

The Canon RF 10-20mm f/4L IS STM and the Canon RF 14-35mm f/4L IS USM side by side, computed from this guide's catalogue.

Which to pick

Pick the Canon RF 10-20mm f/4L IS STM if you want a wider view (from 10mm equivalent). Pick the Canon RF 14-35mm f/4L IS USM if you want more reach (to 35mm equivalent).

Still torn? Ask the guide about the Canon RF 10-20mm f/4L IS STM and the Canon RF 14-35mm f/4L IS 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 RF 10-20mm f/4L IS STM	Canon RF 14-35mm f/4L IS USM
Maker	Canon	Canon
Focal length	10-20mm (zoom)	14-35mm (zoom)
Full-frame equivalent	10-20mm	14-35mm
Maximum aperture	f/4	f/4
Made for	Full frame	Full frame
Mounts	Canon RF	Canon RF
Stabilised	yes	yes
Autofocus	yes	yes
Zoom range	2.0×	2.5×more range
Weight	570 g	540 glighter
Cameras it fits	18 in this guide	18 in this guide

Focal range, in full-frame terms

Canon RF 10-20mm f/4L IS STM: 10-20mm.

Canon RF 14-35mm f/4L IS USM: 14-35mm.

Aperture

Canon RF 10-20mm f/4L IS STM: f/4 wide open.

Canon RF 14-35mm f/4L IS 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

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