The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 60-600mm F4.5-6.3 DG DN 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. Sigma 60-600mm F4.5-6.3 DG DN OS is the longer of the two lenses at 279mm. The Sony FE 100-400mm F4.5-5.6 with a length of 205mm, is 74mm shorter. Besides being longer, the Sigma 60-600mm F4.5-6.3 DG DN OS also has a larger diameter of 119mm compared to the Sony FE 100-400mm F4.5-5.6's 94mm diameter.
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Below you can find a scaled side-by-side image of Sigma 60-600mm F4.5-6.3 DG DN OS and Sony FE 100-400mm F4.5-5.6 to get a better idea of how their sizes compare in real life.
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, 44% (1100g) lighter than the Sigma 60-600mm F4.5-6.3 DG DN OS's weight of 2495g.
Below you can find the dimension and weight table of the Telephoto Zoom Lenses in Sony E Mount for size comparison purposes.
Super Telephoto Lenses in Sony E Mount for Size Comparison
Filter Threads
The Sigma 60-600mm F4.5-6.3 DG DN OS has a filter size of 105mm 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 105mm filters that we recommend you to consider for the Sigma 60-600mm F4.5-6.3 DG DN OS:
And these are the 77mm filters that we recommend for the Sony FE 100-400mm F4.5-5.6:
Lens Mounts
Both the Sigma 60-600mm F4.5-6.3 DG DN OS 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 A9 III, Sony A7C Mark II and Sony A7CR.
Sigma 60-600mm F4.5-6.3 DG DN OS is also available in Leica L mount.
Focal Range
Sigma 60-600mm F4.5-6.3 DG DN OS has a focal range of 60-600mm 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
90 - 900mm.
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.