The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Zeiss Batis 85mm F1.8 and the Sigma 50mm 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. Zeiss Batis 85mm F1.8 is the longer of the two lenses at 92mm. The Sigma 50mm F1.4 EX DG HSM with a length of 68mm, is 24mm shorter. Besides being longer, the Zeiss Batis 85mm F1.8 also has a larger diameter of 92mm compared to the Sigma 50mm F1.4 EX DG HSM's 85mm 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. Zeiss Batis 85mm F1.8 weighs 475g, which means it is 30g (5%) lighter than the Sigma 50mm F1.4 EX DG HSM which has a weight of 505g.
Filter Threads
The Zeiss Batis 85mm F1.8 has a filter size of 67mm whereas the Sigma 50mm 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 Zeiss Batis 85mm F1.8:
And these are the 77mm filters that we recommend for the Sigma 50mm F1.4 EX DG HSM:
Lens Mounts
The Zeiss Batis 85mm F1.8 has the Sony E lens mount whereas the Sigma 50mm F1.4 EX DG HSM has the Canon EF lens mount. Some of the latest released cameras that are compatible with these mounts are Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount and Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Sigma 50mm F1.4 EX DG HSM is also available in Pentax KAF3 , Sony Alpha, Sigma SA, Nikon F (FX) and Four Thirds mounts.
Focal Range
Zeiss Batis 85mm F1.8 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.
On the other hand, the Sigma 50mm F1.4 EX DG HSM is a prime lens with fixed focal lenght of 50mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 80mm.
