The type of photography that you are planning to use is an important decision factor. Here we have evaluated the 7Artisans 10mm f2.8 AF and the Viltrox 9mm F2.8 X 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 10mm f2.8 AF is the longer of the two lenses at 72mm. The Viltrox 9mm F2.8 X with a length of 56mm, is 16mm shorter. Besides being longer, the 7Artisans 10mm f2.8 AF also has a larger diameter of 69mm compared to the Viltrox 9mm F2.8 X's 65mm 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 9mm F2.8 X weighs 175g, 24% (57g) lighter than the 7Artisans 10mm f2.8 AF's weight of 232g.
Filter Threads
The 7Artisans 10mm f2.8 AF has a filter size of 62mm whereas the Viltrox 9mm F2.8 X has a 58mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 62mm filters that we recommend you to consider for the 7Artisans 10mm f2.8 AF:
And these are the 58mm filters that we recommend for the Viltrox 9mm F2.8 X:
Lens Mounts
The 7Artisans 10mm f2.8 AF has the Fujifilm X lens mount whereas the Viltrox 9mm F2.8 X has the Fujiflm X lens mount. Some of the latest released cameras that are compatible with these mounts are Fujifilm X-T30 III, Fujifilm X-E5 and Fujifilm X-M5 for the Fujifilm X Mount and Fujifilm X-T30 III, Fujifilm X-E5 and Fujifilm X-M5 for the Fujiflm X Mount.
7Artisans 10mm f2.8 AF is also available in the Sony E and Nikon Z mounts.
Focal Range
7Artisans 10mm f2.8 AF is a prime lens with fixed focal lenght of 10mm which has an effective (full-frame 35mm equivalent) focal range of
15mm when used on a APS-C / DX format camera.
On the other hand, the Viltrox 9mm F2.8 X is a prime lens with fixed focal lenght of 9mm which has an effective (full-frame 35mm equivalent) focal range of 13.5mm when used on a APS-C / DX format camera.