The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sirui 85mm F1.4 X and the Nikon Z 85mm F1.8 S 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 Nikon Z 85mm F1.8 S with a length of 99mm, is 3mm shorter. Besides being longer, the Sirui 85mm F1.4 X also has a larger diameter of 80mm compared to the Nikon Z 85mm F1.8 S's 75mm 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. Nikon Z 85mm F1.8 S weighs 470g, 12% (70g) lighter than the Sirui 85mm F1.4 X's weight of 540g.
Filter Threads
Both the Sirui 85mm F1.4 X and the Nikon Z 85mm F1.8 S have the same Filter thread size of 67mm.
Below are links to the 67mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Sirui 85mm F1.4 X has the Fujifilm X lens mount whereas the Nikon Z 85mm F1.8 S has the Nikon Z 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 Nikon ZR, Nikon Z5 II and RED Komodo-X 6K Z for the Nikon Z Mount.
Focal Range
Both lenses have the same focal range of
85mm but while Sirui 85mm F1.4 X has the fastest aperture of
F1.4, the Nikon Z 85mm F1.8 S's widest aperture value is
F1.8.
