The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox AF 56mm F1.2 Pro and the Fujifilm Fujinon MKX 50-135mm T2.9 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. Fujifilm Fujinon MKX 50-135mm T2.9 is the longer of the two lenses at 207mm. The Viltrox AF 56mm F1.2 Pro with a length of 92mm, is 115mm shorter. Besides being longer, the Fujifilm Fujinon MKX 50-135mm T2.9 also has a larger diameter of 87mm 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, which means it is 510g (47%) lighter than the Fujifilm Fujinon MKX 50-135mm T2.9 which has a weight of 1080g.
Filter Threads
The Viltrox AF 56mm F1.2 Pro has a filter size of 67mm whereas the Fujifilm Fujinon MKX 50-135mm T2.9 has a 82mm 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 Viltrox AF 56mm F1.2 Pro:
And these are the 82mm filters that we recommend for the Fujifilm Fujinon MKX 50-135mm T2.9:
Lens Mounts
Both the Viltrox AF 56mm F1.2 Pro and the Fujifilm Fujinon MKX 50-135mm T2.9 has the same Fujifilm X lens mount. Some of the latest released cameras that are compatible with the Fujifilm X lenses are Fujifilm X-T30 III, Fujifilm X-E5 and Fujifilm X-M5.
Viltrox AF 56mm F1.2 Pro is also available in the Sony E and Nikon Z mounts.
Focal Range
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.
On the other hand, the Fujifilm Fujinon MKX 50-135mm T2.9 has a focal range of 50-135mm and 2.7X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 75-202.5mm when used on a 35mm FF format camera.
