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 Sirui 85mm F1.4 X 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. Sirui 85mm F1.4 X is the longer of the two lenses at 102mm. The Kase 85mm F1.4 with a length of 99mm, is 3mm shorter. On the other hand, the Kase 85mm F1.4 has a larger diameter of 82mm compared to the Sirui 85mm F1.4 X's 80mm 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. Sirui 85mm F1.4 X weighs 540g, 6% (40g) lighter than the Kase 85mm F1.4's weight of 580g.
Filter Threads
The Kase 85mm F1.4 has a filter size of 72mm whereas the Sirui 85mm F1.4 X 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 72mm filters that we recommend you to consider for the Kase 85mm F1.4:
And these are the 67mm filters that we recommend for the Sirui 85mm F1.4 X:
Lens Mounts
The Kase 85mm F1.4 has the Nikon Z lens mount whereas the Sirui 85mm F1.4 X has the Fujifilm X lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon ZR, Nikon Z5 II and RED Komodo-X 6K Z for the Nikon Z Mount and Fujifilm X-T30 III, Fujifilm X-E5 and Fujifilm X-M5 for the Fujifilm X Mount.
Kase 85mm F1.4 is also available in the Sony E , Fujifilm X and Leica L mounts.
Focal Range
Both lenses have the same focal range of
85mm and the fastest aperture of
F1.4.
