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 Sigma 15mm F2.8 EX DG Fisheye 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 Sigma 15mm F2.8 EX DG Fisheye with a length of 65mm, is 95mm shorter. Besides being longer, the Sigma 15mm f1.4 DG DN Art also has a larger diameter of 104mm compared to the Sigma 15mm F2.8 EX DG Fisheye's 74mm 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 15mm F2.8 EX DG Fisheye weighs 370g, 72% (990g) lighter than the Sigma 15mm f1.4 DG DN Art's weight of 1360g.
Lens Mounts
The Sigma 15mm f1.4 DG DN Art has the Sony E lens mount whereas the Sigma 15mm F2.8 EX DG Fisheye has the Canon EF lens mount. Some of the latest released cameras that are compatible with these mounts are Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount and Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Sigma 15mm f1.4 DG DN Art is also available in the Leica L mount.
Sigma 15mm F2.8 EX DG Fisheye is also available in Nikon F (FX) , Pentax KAF, Sony Alpha and Sigma SA mounts.
Focal Range
Both lenses have the same focal range of
15mm but while Sigma 15mm f1.4 DG DN Art has the fastest aperture of
F1.4, the Sigma 15mm F2.8 EX DG Fisheye's widest aperture value is
F2.8.