The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 85mm F1.4 EX DG HSM and the Carl Zeiss Apo Sonnar T2/135 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. Carl Zeiss Apo Sonnar T2/135 is the longer of the two lenses at 128mm. The Sigma 85mm F1.4 EX DG HSM with a length of 88mm, is 40mm shorter. On the other hand, the Sigma 85mm F1.4 EX DG HSM has a larger diameter of 86mm compared to the Carl Zeiss Apo Sonnar T2/135's 84mm 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, which means it is 195g (21%) lighter than the Carl Zeiss Apo Sonnar T2/135 which has a weight of 920g.
Below you can find the dimension and weight table of the Telephoto Prime Lenses in Canon EF Mount for size comparison purposes.
Telephoto Lenses in Canon EF Mount for Size Comparison
Filter Threads
Both the Sigma 85mm F1.4 EX DG HSM and the Carl Zeiss Apo Sonnar T2/135 have the same Filter thread size of 77mm.
Below are links to the 77mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Sigma 85mm F1.4 EX DG HSM and the Carl Zeiss Apo Sonnar T2/135 has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K.
Sigma 85mm F1.4 EX DG HSM is also available in the Nikon F (FX) , Pentax KAF3, Sony Alpha and Sigma SA mounts.
Carl Zeiss Apo Sonnar T2/135 is also available in Nikon F (FX) mount.
Focal Range
Sigma 85mm F1.4 EX DG HSM is a prime lens with fixed focal lenght of 85mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
136mm.
On the other hand, the Carl Zeiss Apo Sonnar T2/135 is a prime lens with fixed focal lenght of 135mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 216mm.
