The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 24-105mm F4 DG OS HSM and the Sony E 16-70mm F4 ZA OSS 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 24-105mm F4 DG OS HSM is the longer of the two lenses at 109mm. The Sony E 16-70mm F4 ZA OSS with a length of 75mm, is 34mm shorter. Besides being longer, the Sigma 24-105mm F4 DG OS HSM also has a larger diameter of 89mm compared to the Sony E 16-70mm F4 ZA OSS's 67mm 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. Sony E 16-70mm F4 ZA OSS weighs 308g, 65% (577g) lighter than the Sigma 24-105mm F4 DG OS HSM's weight of 885g.
Filter Threads
The Sigma 24-105mm F4 DG OS HSM has a filter size of 82mm whereas the Sony E 16-70mm F4 ZA OSS has a 55mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 82mm filters that we recommend you to consider for the Sigma 24-105mm F4 DG OS HSM:
And these are the 55mm filters that we recommend for the Sony E 16-70mm F4 ZA OSS:
Lens Mounts
The Sigma 24-105mm F4 DG OS HSM has the Sony Alpha lens mount whereas the Sony E 16-70mm F4 ZA OSS has the Sony E lens mount. Some of the latest released cameras that are compatible with these mounts are Sony A99 II, Sony A68 and Sony A77 II for the Sony Alpha Mount and Sony ZV-E10 II, Sony A6700 and Sony FX30 for the Sony E Mount.
Sigma 24-105mm F4 DG OS HSM is also available in the Canon EF , Nikon F (FX) and Sigma SA mounts.
Focal Range
Sigma 24-105mm F4 DG OS HSM has a focal range of 24-105mm and
4.4X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
36 - 157.5mm.
On the other hand, the Sony E 16-70mm F4 ZA OSS has a focal range of 16-70mm and 4.4X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 24-105mm when used on a APS-C / DX format camera.
