The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Fujifilm 50-140mm F2.8 R OI and the Olympus ED 40-150mm F2.8 Pro 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 50-140mm F2.8 R OI is the longer of the two lenses at 176mm. The Olympus ED 40-150mm F2.8 Pro with a length of 160mm, is 16mm shorter. Besides being longer, the Fujifilm 50-140mm F2.8 R OI also has a larger diameter of 83mm compared to the Olympus ED 40-150mm F2.8 Pro's 79mm diameter.
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. Olympus ED 40-150mm F2.8 Pro weighs 760g, 23% (235g) lighter than the Fujifilm 50-140mm F2.8 R OI's weight of 995g.
Filter Threads
Both the Fujifilm 50-140mm F2.8 R OI and the Olympus ED 40-150mm F2.8 Pro have the same Filter thread size of 72mm.
Below are links to the 72mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Fujifilm 50-140mm F2.8 R OI has the Fujifilm X lens mount whereas the Olympus ED 40-150mm F2.8 Pro has the Micro Four Thirds 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 OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Focal Range
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.
On the other hand, the Olympus ED 40-150mm F2.8 Pro has a focal range of 40-150mm and 3.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 80-300mm when used on a FourThirds format camera.
