The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 20mm F1.4 DG DN A and the Sony FE 16-35mm F2.8 GM 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 16-35mm F2.8 GM is the longer of the two lenses at 122mm. The Sigma 20mm F1.4 DG DN A with a length of 111mm, is 11mm shorter. Besides being longer, the Sony FE 16-35mm F2.8 GM also has a larger diameter of 89mm compared to the Sigma 20mm F1.4 DG DN A's 88mm diameter.
Below you can find a scaled side-by-side image of Sigma 20mm F1.4 DG DN A and Sony FE 16-35mm F2.8 GM to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 20mm F1.4 DG DN A and the Sony FE 16-35mm F2.8 GM 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 20mm F1.4 DG DN A weighs 635g, which means it is 45g (6%) lighter than the Sony FE 16-35mm F2.8 GM which has a weight of 680g.
Filter Threads
Both the Sigma 20mm F1.4 DG DN A and the Sony FE 16-35mm F2.8 GM have the same Filter thread size of 82mm .
Below are links to the 82mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Sigma 20mm F1.4 DG DN A and the Sony FE 16-35mm F2.8 GM 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
Sigma 20mm F1.4 DG DN A is a prime lens with fixed focal lenght of 20mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
36mm .
On the other hand, the Sony FE 16-35mm F2.8 GM 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 .
