The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 16-30mm f2.8 and the Sigma 17-40mm f1.8 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 17-40mm f1.8 is the longer of the two lenses at 116mm. The Tamron 16-30mm f2.8 with a length of 102mm, is 14mm shorter. On the other hand, the Tamron 16-30mm f2.8 has a larger diameter of 75mm compared to the Sigma 17-40mm f1.8's 73mm diameter.
Below you can find a scaled side-by-side image of Tamron 16-30mm f2.8 and Sigma 17-40mm f1.8 to get a better idea of how their sizes compare in real life.
Comparison image of the Tamron 16-30mm f2.8 and the Sigma 17-40mm f1.8 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. Tamron 16-30mm f2.8 weighs 440g, which means it is 95g (17%) lighter than the Sigma 17-40mm f1.8 which has a weight of 535g.
Filter Threads
Both the Tamron 16-30mm f2.8 and the Sigma 17-40mm f1.8 have the same Filter thread size of 67mm .
Below are links to the 67mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Tamron 16-30mm f2.8 and the Sigma 17-40mm f1.8 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 .
Leica L , Fujifilm X and Canon RF mounts.
Focal Range
Tamron 16-30mm f2.8 has a focal range of 16-30mm and
1.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
24 - 45mm .
On the other hand, the Sigma 17-40mm f1.8 has a focal range of 17-40mm and 2.4X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 25.5-60mm when used on a APS-C / DX format camera.
