The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 100-400mm F4.5-5.6 and the Sony FE 70-200mm 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 100-400mm F4.5-5.6 is the longer of the two lenses at 205mm. The Sony FE 70-200mm F2.8 GM with a length of 200mm, is 5mm shorter. Besides being longer, the Sony FE 100-400mm F4.5-5.6 also has a larger diameter of 94mm compared to the Sony FE 70-200mm F2.8 GM's 88mm diameter.
Below you can find a scaled side-by-side image of Sony FE 100-400mm F4.5-5.6 and Sony FE 70-200mm F2.8 GM to get a better idea of how their sizes compare in real life.
Comparison image of the Sony FE 100-400mm F4.5-5.6 and the Sony FE 70-200mm 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. Sony FE 100-400mm F4.5-5.6 weighs 1395g, which means it is 85g (5%) lighter than the Sony FE 70-200mm F2.8 GM which has a weight of 1480g.
Filter Threads
Both the Sony FE 100-400mm F4.5-5.6 and the Sony FE 70-200mm F2.8 GM have the same Filter thread size of 77mm .
Below are links to the 77mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Sony FE 100-400mm F4.5-5.6 and the Sony FE 70-200mm 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
Sony FE 100-400mm F4.5-5.6 has a focal range of 100-400mm and
4.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
150 - 600mm .
On the other hand, the Sony FE 70-200mm F2.8 GM has a focal range of 70-200mm and 2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 105 - 300mm .
