The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 16-35mm F4 ZA OSS and the Sigma 18-35mm F1.8 DC HSM 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 18-35mm F1.8 DC HSM is the longer of the two lenses at 121mm. The Sony FE 16-35mm F4 ZA OSS with a length of 99mm, is 22mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 78mm.
Below you can find a scaled side-by-side image of Sony FE 16-35mm F4 ZA OSS and Sigma 18-35mm F1.8 DC HSM to get a better idea of how their sizes compare in real life.
Comparison image of the Sony FE 16-35mm F4 ZA OSS and the Sigma 18-35mm F1.8 DC HSM 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. Sony FE 16-35mm F4 ZA OSS weighs 518g, which means it is 292g (36%) lighter than the Sigma 18-35mm F1.8 DC HSM which has a weight of 810g.
Filter Threads
Both the Sony FE 16-35mm F4 ZA OSS and the Sigma 18-35mm F1.8 DC HSM have the same Filter thread size of 72mm .
Below are links to the 72mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Sony FE 16-35mm F4 ZA OSS has the Sony E lens mount whereas the Sigma 18-35mm F1.8 DC HSM 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 Canon T8i , Canon 90D and Canon SL3 for the Canon EF Mount.
Sigma 18-35mm F1.8 DC HSM is also available in Pentax KAF , Sony Alpha , Sigma SA and Nikon F (DX) mounts.
Focal Range
Sony FE 16-35mm F4 ZA OSS has a focal range of 16-35mm and
2.2X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
24 - 52.5mm .
On the other hand, the Sigma 18-35mm F1.8 DC HSM has a focal range of 18-35mm and 1.9X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 28.8-56mm when used on a APS-C / DX format camera.