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 Sony E 10-18mm F4 OSS 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 15mm f1.4 DG DN Art is the longer of the two lenses at 160mm. The Sony E 10-18mm F4 OSS with a length of 64mm, is 96mm shorter. Besides being longer, the Sigma 15mm f1.4 DG DN Art also has a larger diameter of 104mm compared to the Sony E 10-18mm F4 OSS's 70mm diameter.
Below you can find a scaled side-by-side image of Sigma 15mm f1.4 DG DN Art and Sony E 10-18mm F4 OSS to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 15mm f1.4 DG DN Art and the Sony E 10-18mm F4 OSS Size and Weight 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. Sony E 10-18mm F4 OSS weighs 225g, 83% (1135g) 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 Sony E 10-18mm F4 OSS has the same Sony E lens mount . Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5 , Sony A7R VI and Sony A7 V .
Sigma 15mm f1.4 DG DN Art is also available in the Leica L 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 Sony E 10-18mm F4 OSS has a focal range of 10-18mm and 1.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 15-27mm when used on a APS-C / DX format camera.