The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 20-200mm F3.5-6.3 and the Sony FE 20-70mm F4 G 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 20-200mm F3.5-6.3 is the longer of the two lenses at 118mm. The Sony FE 20-70mm F4 G with a length of 99mm, is 19mm shorter. On the other hand, the Sony FE 20-70mm F4 G has a larger diameter of 79mm compared to the Sigma 20-200mm F3.5-6.3's 77mm diameter.
Below you can find a scaled side-by-side image of Sigma 20-200mm F3.5-6.3 and Sony FE 20-70mm F4 G to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 20-200mm F3.5-6.3 and the Sony FE 20-70mm F4 G 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 FE 20-70mm F4 G weighs 488g, 9% (52g) lighter than the Sigma 20-200mm F3.5-6.3's weight of 540g.
Filter Threads
Both the Sigma 20-200mm F3.5-6.3 and the Sony FE 20-70mm F4 G have the same Filter thread size of 72mm .
Below are links to the 72mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Sigma 20-200mm F3.5-6.3 and the Sony FE 20-70mm F4 G 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 20-200mm F3.5-6.3 has a focal range of 20-200mm and
10.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
30 - 300mm .
On the other hand, the Sony FE 20-70mm F4 G has a focal range of 20-70mm and 3.5X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 30 - 105mm .
