The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Rokinon 85mm F1.8 and the Fujifilm XF 80mm F2.8 OIS WR Macro for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is an important deciding factor when comparing two lenses. Fujifilm XF 80mm F2.8 OIS WR Macro is the longer of the two lenses at 130mm. The Rokinon 85mm F1.8 with a length of 81mm, is 49mm shorter. Besides being longer, the Fujifilm XF 80mm F2.8 OIS WR Macro also has a larger diameter of 80mm compared to the Rokinon 85mm F1.8's 68mm diameter.
The weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Rokinon 85mm F1.8 weighs 344g, which means it is 406g (54%) lighter than the Fujifilm XF 80mm F2.8 OIS WR Macro which has a weight of 750g.
Lens Mounts
Both the Rokinon 85mm F1.8 and the Fujifilm XF 80mm F2.8 OIS WR Macro has the same Fujifilm X lens mount. Some of the latest released cameras that are compatible with the Fujifilm X lenses are Fujifilm X-S20, Fujifilm X-T5 and Fujifilm X-H2.
Rokinon 85mm F1.8 is also available in Canon EF-M and Sony E mounts.
Focal Range
Rokinon 85mm F1.8 is a prime lens with fixed focal lenght of 85mm which has an effective (full-frame 35mm equivalent) focal range of 127.5mm when used on a APS-C / DX format camera. Fujifilm XF 80mm F2.8 OIS WR Macro is a prime lens with fixed focal lenght of 80mm which has an effective (full-frame 35mm equivalent) focal range of 120mm when used on a APS-C / DX format camera.