The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Panasonic S 85mm F1.8 and the Sigma 85mm F1.4 EX 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 EX DG HSM is the longer of the two lenses at 88mm. The Panasonic S 85mm F1.8 with a length of 82mm, is 6mm shorter. Besides being longer, the Sigma 85mm F1.4 EX DG HSM also has a larger diameter of 86mm compared to the Panasonic S 85mm F1.8's 74mm 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. Panasonic S 85mm F1.8 weighs 355g, which means it is 370g (51%) lighter than the Sigma 85mm F1.4 EX DG HSM which has a weight of 725g.
Filter Threads
The Panasonic S 85mm F1.8 has a filter size of 67mm whereas the Sigma 85mm F1.4 EX DG HSM has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 67mm filters that we recommend you to consider for the Panasonic S 85mm F1.8:
And these are the 77mm filters that we recommend for the Sigma 85mm F1.4 EX DG HSM:
Lens Mounts
The Panasonic S 85mm F1.8 has the Leica L lens mount whereas the Sigma 85mm F1.4 EX DG HSM has the Pentax KAF3 lens mount. Some of the latest released cameras that are compatible with these mounts are Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and Pentax K-3 III Mono, Pentax KF and Pentax K-3 III for the Pentax KAF3 Mount.
Sigma 85mm F1.4 EX DG HSM is also available in Canon EF , Nikon F (FX), Sony Alpha and Sigma SA mounts.
Focal Range
Both lenses have the same focal range of
85mm but while Panasonic S 85mm F1.8 has the fastest aperture of
F1.8, the Sigma 85mm F1.4 EX DG HSM's widest aperture value is
F1.4.
