The type of photography that you are planning to use is an important decision factor. Here we have evaluated the 7Artisans 14mm F2.8 and the Sigma 16-28mm F2.8 L 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. Sigma 16-28mm F2.8 L is the longer of the two lenses at 101mm. The 7Artisans 14mm F2.8 with a length of 87mm, is 14mm shorter. On the other hand, the 7Artisans 14mm F2.8 has a larger diameter of 89mm compared to the Sigma 16-28mm F2.8 L's 77mm 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. Sigma 16-28mm F2.8 L weighs 450g, 10% (54g) lighter than the 7Artisans 14mm F2.8's weight of 504g.
Filter Threads
The 7Artisans 14mm F2.8 has a filter size of 77mm whereas the Sigma 16-28mm F2.8 L has a 72mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 77mm filters that we recommend you to consider for the 7Artisans 14mm F2.8:
And these are the 72mm filters that we recommend for the Sigma 16-28mm F2.8 L:
Lens Mounts
Both the 7Artisans 14mm F2.8 and the Sigma 16-28mm F2.8 L has the same Leica L lens mount. Some of the latest released cameras that are compatible with the Leica L lenses are Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE.
7Artisans 14mm F2.8 is also available in the Sony E , Canon RF and Nikon Z mounts.
Focal Range
7Artisans 14mm F2.8 is a prime lens with fixed focal lenght of 14mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
21mm.
On the other hand, the Sigma 16-28mm F2.8 L has a focal range of 16-28mm and 1.8X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 24 - 42mm.