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 Zeiss Otus 85mm F1.4 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. Zeiss Otus 85mm F1.4 is the longer of the two lenses at 138mm. The Sigma 135mm F1.8 DG HSM with a length of 115mm, is 23mm shorter. Besides being longer, the Zeiss Otus 85mm F1.4 also has a larger diameter of 101mm 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 Zeiss Otus 85mm F1.4 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 Zeiss Otus 85mm F1.4 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. Sigma 135mm F1.8 DG HSM weighs 1130g, which means it is 10g (0%) lighter than the Zeiss Otus 85mm F1.4 which has a weight of 1140g.
Below you can find the dimension and weight table of the Telephoto Prime Lenses in Nikon F (FX) Mount for size comparison purposes.
Telephoto Lenses in Nikon F (FX) Mount for Size Comparison
Filter Threads
The Sigma 135mm F1.8 DG HSM has a filter size of 82mm whereas the Zeiss Otus 85mm F1.4 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 Zeiss Otus 85mm F1.4:
Lens Mounts
Both the Sigma 135mm F1.8 DG HSM and the Zeiss Otus 85mm F1.4 has the same Nikon F (FX) lens mount . Some of the latest released cameras that are compatible with the Nikon F (FX) lenses are Nikon D6 , Nikon D780 and Nikon D3500 .
Sigma 135mm F1.8 DG HSM is also available in the Sigma SA , Canon EF and Sony E mounts.
Zeiss Otus 85mm F1.4 is also available in Canon EF , Sony E , Canon RF and Nikon Z mounts.
Focal Range
Sigma 135mm F1.8 DG HSM is a prime lens with fixed focal lenght of 135mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
202.5mm .
On the other hand, the Zeiss Otus 85mm F1.4 is a prime lens with fixed focal lenght of 85mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 127.5mm .