The type of photography that you are planning to use is an important decision factor. Here we have evaluated the 7Artisans 75mm f1.4 and the Viltrox AF 56mm f1.7 XF 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 75mm f1.4 is the longer of the two lenses at 77mm. The Viltrox AF 56mm f1.7 XF with a length of 55mm, is 22mm shorter. On the other hand, the Viltrox AF 56mm f1.7 XF has a larger diameter of 65mm compared to the 7Artisans 75mm f1.4'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. Viltrox AF 56mm f1.7 XF weighs 171g, 58% (237g) lighter than the 7Artisans 75mm f1.4's weight of 408g.
Filter Threads
The 7Artisans 75mm f1.4 has a filter size of 58mm whereas the Viltrox AF 56mm f1.7 XF 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 58mm filters that we recommend you to consider for the 7Artisans 75mm f1.4:
And these are the 52mm filters that we recommend for the Viltrox AF 56mm f1.7 XF:
Lens Mounts
The 7Artisans 75mm f1.4 has the Leica L lens mount whereas the Viltrox AF 56mm f1.7 XF has the Fujifilm X lens mount. Some of the latest released cameras that are compatible with these mounts are Leica TL2, Leica TL and Leica T Typ 701 for the Leica L Mount and Fujifilm X-T30 III, Fujifilm X-E5 and Fujifilm X-M5 for the Fujifilm X Mount.
7Artisans 75mm f1.4 is also available in the Sony E , Canon RF and Nikon Z mounts.
Focal Range
7Artisans 75mm f1.4 is a prime lens with fixed focal lenght of 75mm which has an effective (full-frame 35mm equivalent) focal range of
112.5mm when used on a 35mm FF format camera.
On the other hand, the Viltrox AF 56mm f1.7 XF 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.