Compare lenses

Canon EF 16-35mm f/4L IS USM vs Tamron 17-35mm f/2.8-4 Di OSD

The Canon EF 16-35mm f/4L IS USM and the Tamron 17-35mm f/2.8-4 Di OSD 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 optical stabilisation, which helps most on bodies without it. Pick the Tamron 17-35mm f/2.8-4 Di OSD if you want a brighter f/2.8 (1.0 stops more light), for dim light and softer backgrounds and a fit on more cameras (39 against 22 in this guide).

Still torn? Ask the guide about the Canon EF 16-35mm f/4L IS USM and the Tamron 17-35mm f/2.8-4 Di OSD

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	Tamron 17-35mm f/2.8-4 Di OSD
Maker	Canon	Tamron
Focal length	16-35mm (zoom)	17-35mm (zoom)
Full-frame equivalent	16-35mm	17-35mm
Maximum aperture	f/4	f/2.8-4brighter
Made for	Full frame	Full frame
Mounts	Canon EF	Canon EF, Nikon F
Stabilised	yesstabilised	no
Autofocus	yes	yes
Zoom range	2.2×	2.1×
Weight	615 g	not listed
Cameras it fits	22 in this guide	39 in this guidefits more cameras

Focal range, in full-frame terms

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

Tamron 17-35mm f/2.8-4 Di OSD: 17-35mm.

Aperture

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

Tamron 17-35mm f/2.8-4 Di OSD: 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

22 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 Tamron 17-35mm f/2.8-4 Di OSD 39.