The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 70-200mm F4 G OSS II and the Sony FE 100-400mm F4.5-5.6 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 F4 G OSS II with a length of 149mm, is 56mm 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 F4 G OSS II's 82mm diameter.
Below you can find a scaled side-by-side image of Sony FE 70-200mm F4 G OSS II and Sony FE 100-400mm F4.5-5.6 to get a better idea of how their sizes compare in real life.
Comparison image of the Sony FE 70-200mm F4 G OSS II and the Sony FE 100-400mm F4.5-5.6 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 70-200mm F4 G OSS II weighs 794g, which means it is 601g (43%) lighter than the Sony FE 100-400mm F4.5-5.6 which has a weight of 1395g.
Filter Threads
The Sony FE 70-200mm F4 G OSS II has a filter size of 72mm whereas the Sony FE 100-400mm F4.5-5.6 has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 72mm filters that we recommend you to consider for the Sony FE 70-200mm F4 G OSS II:
And these are the 77mm filters that we recommend for the Sony FE 100-400mm F4.5-5.6:
Lens Mounts
Both the Sony FE 70-200mm F4 G OSS II and the Sony FE 100-400mm F4.5-5.6 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 70-200mm F4 G OSS II 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 .
On the other hand, the 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 .