The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Pentax-D FA 85mm F1.4 ED SDM AW 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. Pentax-D FA 85mm F1.4 ED SDM AW is the longer of the two lenses at 124mm. The Sigma 85mm F1.4 EX DG HSM with a length of 88mm, is 36mm shorter. Besides being longer, the Pentax-D FA 85mm F1.4 ED SDM AW also has a larger diameter of 95mm compared to the Sigma 85mm F1.4 EX DG HSM's 86mm 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. Sigma 85mm F1.4 EX DG HSM weighs 725g, 42% (530g) lighter than the Pentax-D FA 85mm F1.4 ED SDM AW's weight of 1255g.
Filter Threads
The Pentax-D FA 85mm F1.4 ED SDM AW has a filter size of 82mm 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 82mm filters that we recommend you to consider for the Pentax-D FA 85mm F1.4 ED SDM AW:
And these are the 77mm filters that we recommend for the Sigma 85mm F1.4 EX DG HSM:
Lens Mounts
The Pentax-D FA 85mm F1.4 ED SDM AW has the Pentax KAF4 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 , and for the Pentax KAF4 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 and the fastest aperture of
F1.4.
