The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Zeiss Otus 85mm f1.4 and the TTArtisan AF 56mm F1.8 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 128mm. The TTArtisan AF 56mm F1.8 with a length of 65mm, is 63mm shorter. Besides being longer, the Zeiss Otus 85mm f1.4 also has a larger diameter of 88mm compared to the TTArtisan AF 56mm F1.8's 62mm 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. TTArtisan AF 56mm F1.8 weighs 233g, 77% (807g) lighter than the Zeiss Otus 85mm f1.4's weight of 1040g.
Below you can find the dimension and weight table of the Telephoto Prime Lenses in Nikon Z Mount for size comparison purposes.
Telephoto Lenses in Nikon Z Mount for Size Comparison
Filter Threads
The Zeiss Otus 85mm f1.4 has a filter size of 77mm whereas the TTArtisan AF 56mm F1.8 has a 52mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 77mm filters that we recommend you to consider for the Zeiss Otus 85mm f1.4:
And these are the 52mm filters that we recommend for the TTArtisan AF 56mm F1.8:
Lens Mounts
Both the Zeiss Otus 85mm f1.4 and the TTArtisan AF 56mm F1.8 has the same Nikon Z lens mount. Some of the latest released cameras that are compatible with the Nikon Z lenses are Nikon ZR, Nikon Z5 II and RED Komodo-X 6K Z.
Zeiss Otus 85mm f1.4 is also available in the Canon EF , Nikon F (FX), Sony E and Canon RF mounts.
TTArtisan AF 56mm F1.8 is also available in Sony E and Fujifilm X mounts.
Focal Range
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.
On the other hand, the TTArtisan AF 56mm F1.8 is a prime lens with fixed focal lenght of 56mm which has an effective (full-frame 35mm equivalent) focal range of 84mm when used on a APS-C / DX format camera.
