The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 16-28mm F2.8 E and the Canon 17-40mm f4.0L USM 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 16-28mm F2.8 E is the longer of the two lenses at 101mm. The Canon 17-40mm f4.0L USM with a length of 97mm, is 4mm shorter. On the other hand, the Canon 17-40mm f4.0L USM has a larger diameter of 84mm compared to the Sigma 16-28mm F2.8 E's 77mm diameter.
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. Sigma 16-28mm F2.8 E weighs 450g, which means it is 50g (9%) lighter than the Canon 17-40mm f4.0L USM which has a weight of 500g.
Filter Threads
The Sigma 16-28mm F2.8 E has a filter size of 72mm whereas the Canon 17-40mm f4.0L USM has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 72mm filters that we recommend you to consider for the Sigma 16-28mm F2.8 E:
And these are the 77mm filters that we recommend for the Canon 17-40mm f4.0L USM:
Lens Mounts
The Sigma 16-28mm F2.8 E has the Sony E lens mount whereas the Canon 17-40mm f4.0L USM has the Canon EF lens mount. Some of the latest released cameras that are compatible with these mounts are Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount and Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Focal Range
Sigma 16-28mm F2.8 E has a focal range of 16-28mm and
1.8X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
24 - 42mm.
On the other hand, the Canon 17-40mm f4.0L USM has a focal range of 17-40mm and 2.4X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 27.2 - 64mm.
