The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox AF 85mm f1.8 Z II and the Sigma 85mm F1.4 DG HSM 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. Sigma 85mm F1.4 DG HSM is the longer of the two lenses at 126mm. The Viltrox AF 85mm f1.8 Z II with a length of 92mm, is 34mm shorter. Besides being longer, the Sigma 85mm F1.4 DG HSM also has a larger diameter of 95mm compared to the Viltrox AF 85mm f1.8 Z II'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. Viltrox AF 85mm f1.8 Z II weighs 484g, which means it is 646g (57%) lighter than the Sigma 85mm F1.4 DG HSM which has a weight of 1130g.
Filter Threads
The Viltrox AF 85mm f1.8 Z II has a filter size of 72mm whereas the Sigma 85mm F1.4 DG HSM has a 86mm 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 Viltrox AF 85mm f1.8 Z II:
And these are the 86mm filters that we recommend for the Sigma 85mm F1.4 DG HSM:
Lens Mounts
The Viltrox AF 85mm f1.8 Z II has the Nikon Z lens mount whereas the Sigma 85mm F1.4 DG HSM has the Sigma SA 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 Sigma Quattro, Sigma Quattro H and Sigma SD1 Merrill for the Sigma SA Mount.
Sigma 85mm F1.4 DG HSM is also available in Nikon F (FX) and Canon EF mounts.
Focal Range
Both lenses have the same focal range of
85mm but while Viltrox AF 85mm f1.8 Z II has the fastest aperture of
F1.8, the Sigma 85mm F1.4 DG HSM's widest aperture value is
F1.4.