The type of photography that you are planning to use is an important decision factor. Here we have evaluated the 7Artisans 135mm f1.8 Z and the Viltrox AF 56mm F1.2 Pro 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. 7Artisans 135mm f1.8 Z is the longer of the two lenses at 136mm. The Viltrox AF 56mm F1.2 Pro with a length of 92mm, is 44mm shorter. Besides being longer, the 7Artisans 135mm f1.8 Z also has a larger diameter of 91mm compared to the Viltrox AF 56mm F1.2 Pro's 78mm 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. Viltrox AF 56mm F1.2 Pro weighs 570g, 43% (444g) lighter than the 7Artisans 135mm f1.8 Z's weight of 1014g.
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 7Artisans 135mm f1.8 Z has a filter size of 82mm whereas the Viltrox AF 56mm F1.2 Pro has a 67mm 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 7Artisans 135mm f1.8 Z:
And these are the 67mm filters that we recommend for the Viltrox AF 56mm F1.2 Pro:
Lens Mounts
Both the 7Artisans 135mm f1.8 Z and the Viltrox AF 56mm F1.2 Pro 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.
Viltrox AF 56mm F1.2 Pro is also available in Sony E and Fujifilm X mounts.
Focal Range
7Artisans 135mm f1.8 Z 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 Viltrox AF 56mm F1.2 Pro 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.
