The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 135mm F1.8 DG HSM 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 Sigma 135mm F1.8 DG HSM with a length of 115mm, is 11mm shorter. Besides being longer, the Sigma 85mm F1.4 DG HSM also has a larger diameter of 95mm compared to the Sigma 135mm F1.8 DG HSM's 91mm diameter.
Below you can find a scaled side-by-side image of Sigma 135mm F1.8 DG HSM and Sigma 85mm F1.4 DG HSM to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 135mm F1.8 DG HSM and the Sigma 85mm F1.4 DG HSM Size and Weight 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.
Below you can find the dimension and weight table of the Telephoto Prime Lenses in Sigma SA Mount for size comparison purposes.
Telephoto Lenses in Sigma SA Mount for Size Comparison
Filter Threads
The Sigma 135mm F1.8 DG HSM has a filter size of 82mm 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 82mm filters that we recommend you to consider for the Sigma 135mm F1.8 DG HSM:
And these are the 86mm filters that we recommend for the Sigma 85mm F1.4 DG HSM:
Lens Mounts
Both the Sigma 135mm F1.8 DG HSM and the Sigma 85mm F1.4 DG HSM has the same Sigma SA lens mount . Some of the latest released cameras that are compatible with the Sigma SA lenses are Sigma Quattro , Sigma Quattro H and Sigma SD1 Merrill .
Sigma 135mm F1.8 DG HSM is also available in the Nikon F (FX) , Canon EF and Sony E mounts.
Sigma 85mm F1.4 DG HSM is also available in Nikon F (FX) and Canon EF mounts.
Focal Range
Sigma 135mm F1.8 DG HSM is a prime lens with fixed focal lenght of 135mm.
On the other hand, the Sigma 85mm F1.4 DG HSM is a prime lens with fixed focal lenght of 85mm.