The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Fujifilm XF 500mm f5.6 and the Sigma 100-400mm F5-6.3 OS 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. Fujifilm XF 500mm f5.6 is the longer of the two lenses at 256mm. The Sigma 100-400mm F5-6.3 OS with a length of 197mm, is 59mm shorter. Besides being longer, the Fujifilm XF 500mm f5.6 also has a larger diameter of 105mm compared to the Sigma 100-400mm F5-6.3 OS's 86mm diameter.
Below you can find a scaled side-by-side image of Fujifilm XF 500mm f5.6 and Sigma 100-400mm F5-6.3 OS to get a better idea of how their sizes compare in real life.
Comparison image of the Fujifilm XF 500mm f5.6 and the Sigma 100-400mm F5-6.3 OS 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, 14% (200g) lighter than the Fujifilm XF 500mm f5.6's weight of 1335g.
Filter Threads
The Fujifilm XF 500mm f5.6 has a filter size of 95mm whereas the Sigma 100-400mm F5-6.3 OS has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 95mm filters that we recommend you to consider for the Fujifilm XF 500mm f5.6:
And these are the 67mm filters that we recommend for the Sigma 100-400mm F5-6.3 OS:
Lens Mounts
Both the Fujifilm XF 500mm f5.6 and the Sigma 100-400mm F5-6.3 OS has the same Fujifilm X lens mount . Some of the latest released cameras that are compatible with the Fujifilm X lenses are Fujifilm X-T30 III , Fujifilm X-E5 and Fujifilm X-M5 .
Leica L and Sony E mounts.
Focal Range
Fujifilm XF 500mm f5.6 is a prime lens with fixed focal lenght of 500mm which has an effective (full-frame 35mm equivalent) focal range of
750mm when used on a APS-C / DX format camera.
On the other hand, the Sigma 100-400mm F5-6.3 OS 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 .
