The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 14-24mm F2.8 DG DN Art and the Canon 16-35mm F2.8L III for their suitability to various photography scenarios:
Size and Weight Comparison The size of a lens is a crucial factor to consider when comparing two lenses. Sigma 14-24mm F2.8 DG DN Art is the longer of the two lenses at 131mm. The Canon 16-35mm F2.8L III with a length of 128mm, is 3mm shorter. On the other hand, the Canon 16-35mm F2.8L III has a larger diameter of 89mm compared to the Sigma 14-24mm F2.8 DG DN Art's 85mm diameter.
Below you can find a scaled side-by-side image of Sigma 14-24mm F2.8 DG DN Art and Canon 16-35mm F2.8L III to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 14-24mm F2.8 DG DN Art and the Canon 16-35mm F2.8L III Size and Weight The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Canon 16-35mm F2.8L III weighs 790g, 0% (5g) lighter than the Sigma 14-24mm F2.8 DG DN Art's weight of 795g.
Lens Mounts
The Sigma 14-24mm F2.8 DG DN Art has the Leica L lens mount whereas the Canon 16-35mm F2.8L III has the Canon EF lens mount . Some of the latest released cameras that are compatible with these mounts are Leica SL3-P , Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and Blackmagic URSA 12K LF , Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Sigma 14-24mm F2.8 DG DN Art is also available in the Sony E mount.
Focal Range
Sigma 14-24mm F2.8 DG DN Art has a focal range of 14-24mm and
1.7X zoom ratio .
On the other hand, the Canon 16-35mm F2.8L III has a focal range of 16-35mm and 2.2X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 25.6 - 56mm .