The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Brightin 11mm F2.8 and the 7Artisans FF 18mm f5.6 Z 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. Brightin 11mm F2.8 is the longer of the two lenses at 61mm. The 7Artisans FF 18mm f5.6 Z with a length of 32mm, is 29mm shorter. Besides being longer, the Brightin 11mm F2.8 also has a larger diameter of 65mm compared to the 7Artisans FF 18mm f5.6 Z's 61mm 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. 7Artisans FF 18mm f5.6 Z weighs 146g, 57% (194g) lighter than the Brightin 11mm F2.8's weight of 340g.
Below you can find the dimension and weight table of the Wideangle Fisheye Prime Lenses in Nikon Z Mount for size comparison purposes.
Ultra-Wideangle Lenses in Nikon Z Mount for Size Comparison
Lens Mounts
Both the Brightin 11mm F2.8 and the 7Artisans FF 18mm f5.6 Z 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.
Brightin 11mm F2.8 is also available in the Sony E , Canon RF and Leica L mounts.
Focal Range
Brightin 11mm F2.8 is a prime lens with fixed focal lenght of 11mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
16.5mm.
On the other hand, the 7Artisans FF 18mm f5.6 Z is a prime lens with fixed focal lenght of 18mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 27mm.