The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 15mm f1.4 DG DN Art and the Leica 16-35mm F3.5-4.5 ASPH 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. Leica 16-35mm F3.5-4.5 ASPH is the longer of the two lenses at 238mm. The Sigma 15mm f1.4 DG DN Art with a length of 158mm, is 80mm shorter. On the other hand, the Sigma 15mm f1.4 DG DN Art has a larger diameter of 104mm compared to the Leica 16-35mm F3.5-4.5 ASPH's 88mm 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. Leica 16-35mm F3.5-4.5 ASPH weighs 990g, 27% (370g) lighter than the Sigma 15mm f1.4 DG DN Art's weight of 1360g.
Lens Mounts
Both the Sigma 15mm f1.4 DG DN Art and the Leica 16-35mm F3.5-4.5 ASPH 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.
Sigma 15mm f1.4 DG DN Art is also available in the Sony E mount.
Focal Range
Sigma 15mm f1.4 DG DN Art is a prime lens with fixed focal lenght of 15mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
22.5mm.
On the other hand, the Leica 16-35mm F3.5-4.5 ASPH has a focal range of 16-35mm and 2.2X zoom ratio .