The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 100-400mm F5-6.3 OS 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 Sigma 100-400mm F5-6.3 OS with a length of 197mm, is 8mm shorter. Besides being longer, the Sony FE 100-400mm F4.5-5.6 also has a larger diameter of 94mm compared to the Sigma 100-400mm F5-6.3 OS's 86mm diameter.
Below you can find a scaled side-by-side image of Sigma 100-400mm F5-6.3 OS 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 Sigma 100-400mm F5-6.3 OS 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. Sigma 100-400mm F5-6.3 OS weighs 1135g, which means it is 260g (18%) lighter than the Sony FE 100-400mm F4.5-5.6 which has a weight of 1395g.
Filter Threads
The Sigma 100-400mm F5-6.3 OS has a filter size of 67mm 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 67mm filters that we recommend you to consider for the Sigma 100-400mm F5-6.3 OS:
And these are the 77mm filters that we recommend for the Sony FE 100-400mm F4.5-5.6:
Lens Mounts
The Sigma 100-400mm F5-6.3 OS has the Fujifilm X lens mount whereas the Sony FE 100-400mm F4.5-5.6 has the Sony E lens mount . Some of the latest released cameras that are compatible with these mounts are Fujifilm X-T30 III , Fujifilm X-E5 and Fujifilm X-M5 for the Fujifilm X Mount and Sony FX5 , Sony A7R VI and Sony A7 V for the Sony E Mount.
Leica L and Sony E mounts.
Focal Range
Both lenses have the same focal range of
100-400mm but while Sigma 100-400mm F5-6.3 OS has the fastest aperture of
F5-6.3 , the Sony FE 100-400mm F4.5-5.6's widest aperture value is
F4.5-5.6 .
