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 E 10-18mm F4 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. Tamron 17-28mm F2.8 Di III is the longer of the two lenses at 99mm. The Sony E 10-18mm F4 OSS with a length of 64mm, is 35mm shorter. Besides being longer, the Tamron 17-28mm F2.8 Di III also has a larger diameter of 73mm compared to the Sony E 10-18mm F4 OSS's 70mm diameter.
Below you can find a scaled side-by-side image of Tamron 17-28mm F2.8 Di III and Sony E 10-18mm F4 OSS to get a better idea of how their sizes compare in real life.
Comparison image of the Tamron 17-28mm F2.8 Di III and the Sony E 10-18mm F4 OSS 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 E 10-18mm F4 OSS weighs 225g, 46% (195g) lighter than the Tamron 17-28mm F2.8 Di III's weight of 420g.
Below you can find the dimension and weight table of the Wideangle Zoom Lenses in Sony E Mount for size comparison purposes.
Ultra-Wideangle Sony E Mount
Filter Threads
The Tamron 17-28mm F2.8 Di III has a filter size of 67mm whereas the Sony E 10-18mm F4 OSS has a 62mm 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 62mm filters that we recommend for the Sony E 10-18mm F4 OSS:
Lens Mounts
Both the Tamron 17-28mm F2.8 Di III and the Sony E 10-18mm F4 OSS has the same Sony E lens mount . Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5 , Sony A7R VI and Sony A7 V .
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 E 10-18mm F4 OSS has a focal range of 10-18mm and 1.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 15-27mm when used on a APS-C / DX format camera.
