The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 16-25mm F2.8 and the Sigma 10-18mm F2.8 DC DN C 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 FE 16-25mm F2.8 is the longer of the two lenses at 91mm. The Sigma 10-18mm F2.8 DC DN C with a length of 64mm, is 27mm shorter. Besides being longer, the Sony FE 16-25mm F2.8 also has a larger diameter of 75mm compared to the Sigma 10-18mm F2.8 DC DN C's 72mm diameter.
Below you can find a scaled side-by-side image of Sony FE 16-25mm F2.8 and Sigma 10-18mm F2.8 DC DN C to get a better idea of how their sizes compare in real life.
Comparison image of the Sony FE 16-25mm F2.8 and the Sigma 10-18mm F2.8 DC DN C 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. Sigma 10-18mm F2.8 DC DN C weighs 255g, 37% (154g) lighter than the Sony FE 16-25mm F2.8's weight of 409g.
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
Both the Sony FE 16-25mm F2.8 and the Sigma 10-18mm F2.8 DC DN C 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 Sony FE 16-25mm F2.8 and the Sigma 10-18mm F2.8 DC DN C 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
Sony FE 16-25mm F2.8 has a focal range of 16-25mm and
1.6X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
24 - 37.5mm .
On the other hand, the Sigma 10-18mm F2.8 DC DN C 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.
