The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 17-28mm F2.8 Di III and the Sony 16-35mm F2.8 ZA SSM 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. Sony 16-35mm F2.8 ZA SSM is the longer of the two lenses at 114mm. The Tamron 17-28mm F2.8 Di III with a length of 99mm, is 15mm shorter. Besides being longer, the Sony 16-35mm F2.8 ZA SSM also has a larger diameter of 83mm compared to the Tamron 17-28mm F2.8 Di III's 73mm 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. Tamron 17-28mm F2.8 Di III weighs 420g, which means it is 480g (53%) lighter than the Sony 16-35mm F2.8 ZA SSM which has a weight of 900g.
Filter Threads
The Tamron 17-28mm F2.8 Di III has a filter size of 67mm whereas the Sony 16-35mm F2.8 ZA SSM 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 67mm filters that we recommend you to consider for the Tamron 17-28mm F2.8 Di III:
And these are the 77mm filters that we recommend for the Sony 16-35mm F2.8 ZA SSM:
Lens Mounts
The Tamron 17-28mm F2.8 Di III has the Sony E lens mount whereas the Sony 16-35mm F2.8 ZA SSM has the Sony Alpha 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 Sony A99 II, Sony A68 and Sony A77 II for the Sony Alpha Mount.
Focal Range
Tamron 17-28mm F2.8 Di III has a focal range of 17-28mm and
1.7X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
25.5 - 42mm.
On the other hand, the Sony 16-35mm F2.8 ZA SSM 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.
