The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Kase 85mm F1.4 and the Fujifilm XF 90mm F2 R LM WR 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 90mm F2 R LM WR is the longer of the two lenses at 105mm. The Kase 85mm F1.4 with a length of 99mm, is 6mm shorter. On the other hand, the Kase 85mm F1.4 has a larger diameter of 82mm compared to the Fujifilm XF 90mm F2 R LM WR's 75mm diameter.
Below you can find a scaled side-by-side image of Kase 85mm F1.4 and Fujifilm XF 90mm F2 R LM WR to get a better idea of how their sizes compare in real life.
Comparison image of the Kase 85mm F1.4 and the Fujifilm XF 90mm F2 R LM WR 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 XF 90mm F2 R LM WR weighs 540g, 6% (40g) lighter than the Kase 85mm F1.4's weight of 580g.
Below you can find the dimension and weight table of the Telephoto Prime Lenses in Fujifilm X Mount for size comparison purposes.
Telephoto Lenses in Fujifilm X Mount for Size Comparison
Filter Threads
The Kase 85mm F1.4 has a filter size of 72mm whereas the Fujifilm XF 90mm F2 R LM WR has a 62mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 72mm filters that we recommend you to consider for the Kase 85mm F1.4:
And these are the 62mm filters that we recommend for the Fujifilm XF 90mm F2 R LM WR:
Lens Mounts
Both the Kase 85mm F1.4 and the Fujifilm XF 90mm F2 R LM WR 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 .
Kase 85mm F1.4 is also available in the Sony E , Nikon Z and Leica L mounts.
Focal Range
Kase 85mm F1.4 is a prime lens with fixed focal lenght of 85mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
127.5mm .
On the other hand, the Fujifilm XF 90mm F2 R LM WR is a prime lens with fixed focal lenght of 90mm which has an effective (full-frame 35mm equivalent) focal range of 135mm when used on a APS-C / DX format camera.