The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 14mm F1.8 DG HSM Art and the Sigma 28mm F1.4 DG HSM A 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 14mm F1.8 DG HSM Art is the longer of the two lenses at 126mm. The Sigma 28mm F1.4 DG HSM A with a length of 108mm, is 18mm shorter. Besides being longer, the Sigma 14mm F1.8 DG HSM Art also has a larger diameter of 95mm compared to the Sigma 28mm F1.4 DG HSM A's 83mm 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 28mm F1.4 DG HSM A weighs 960g, 17% (210g) lighter than the Sigma 14mm F1.8 DG HSM Art's weight of 1170g.
Lens Mounts
Both the Sigma 14mm F1.8 DG HSM Art and the Sigma 28mm F1.4 DG HSM A has the same Leica L lens mount. Some of the latest released cameras that are compatible with the Leica L lenses are Leica SL3, Panasonic S5 II and Panasonic S5 II X.
Sigma 28mm F1.4 DG HSM A is also available in Canon EF , Nikon F (FX), Sigma SA and Sony E mounts.
Focal Range
Sigma 14mm F1.8 DG HSM Art is a prime lens with fixed focal lenght of 14mm.
On the other hand, the Sigma 28mm F1.4 DG HSM A is a prime lens with fixed focal lenght of 28mm.