The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Fujifilm XF 100-400mm F4.5-5.6 and the Fujifilm 50-140mm F2.8 R OI 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 100-400mm F4.5-5.6 is the longer of the two lenses at 211mm. The Fujifilm 50-140mm F2.8 R OI with a length of 176mm, is 35mm shorter. Besides being longer, the Fujifilm XF 100-400mm F4.5-5.6 also has a larger diameter of 95mm compared to the Fujifilm 50-140mm F2.8 R OI's 83mm diameter.
Below you can find a scaled side-by-side image of Fujifilm XF 100-400mm F4.5-5.6 and Fujifilm 50-140mm F2.8 R OI to get a better idea of how their sizes compare in real life.
Comparison image of the Fujifilm XF 100-400mm F4.5-5.6 and the Fujifilm 50-140mm F2.8 R OI 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. Fujifilm 50-140mm F2.8 R OI weighs 995g, 27% (380g) lighter than the Fujifilm XF 100-400mm F4.5-5.6's weight of 1375g.
Filter Threads
The Fujifilm XF 100-400mm F4.5-5.6 has a filter size of 77mm whereas the Fujifilm 50-140mm F2.8 R OI has a 72mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 77mm filters that we recommend you to consider for the Fujifilm XF 100-400mm F4.5-5.6:
And these are the 72mm filters that we recommend for the Fujifilm 50-140mm F2.8 R OI:
Lens Mounts
Both the Fujifilm XF 100-400mm F4.5-5.6 and the Fujifilm 50-140mm F2.8 R OI 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 .
Focal Range
Fujifilm XF 100-400mm F4.5-5.6 has a focal range of 100-400mm and
4.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
150-600mm when used on a APS-C / DX format camera.
On the other hand, the Fujifilm 50-140mm F2.8 R OI has a focal range of 50-140mm and 2.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 75-210mm when used on a APS-C / DX format camera.
