Compare lenses

Canon RF 14-35mm f/4L IS USM vs Canon RF 15-35mm f/2.8L IS USM

The Canon RF 14-35mm f/4L IS USM and the Canon RF 15-35mm f/2.8L IS USM side by side, computed from this guide's catalogue.

Which to pick

Pick the Canon RF 14-35mm f/4L IS USM if you want a lighter lens (540 g against 840 g). Pick the Canon RF 15-35mm f/2.8L IS USM if you want a brighter f/2.8 (1.0 stops more light), for dim light and softer backgrounds.

Still torn? Ask the guide about the Canon RF 14-35mm f/4L IS USM and the Canon RF 15-35mm f/2.8L 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 14-35mm f/4L IS USM	Canon RF 15-35mm f/2.8L IS USM
Maker	Canon	Canon
Focal length	14-35mm (zoom)	15-35mm (zoom)
Full-frame equivalent	14-35mm	15-35mm
Maximum aperture	f/4	f/2.8brighter
Made for	Full frame	Full frame
Mounts	Canon RF	Canon RF
Stabilised	yes	yes
Autofocus	yes	yes
Zoom range	2.5×	2.3×
Weight	540 glighter	840 g
Cameras it fits	18 in this guide	18 in this guide

Focal range, in full-frame terms

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

Canon RF 15-35mm f/2.8L IS USM: 15-35mm.

Aperture

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

Canon RF 15-35mm f/2.8L IS USM: f/2.8 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.