The type of photography that you are planning to use is an important decision factor. Here we have evaluated the 7artisans 10mm f2.8 II RF and the Canon 15mm f2.8 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. 7artisans 10mm f2.8 II RF is the longer of the two lenses at 95mm. The Canon 15mm f2.8 Fisheye with a length of 62mm, is 33mm shorter. Besides being longer, the 7artisans 10mm f2.8 II RF also has a larger diameter of 75mm compared to the Canon 15mm f2.8 Fisheye's 73mm 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. Canon 15mm f2.8 Fisheye weighs 330g, 45% (272g) lighter than the 7artisans 10mm f2.8 II RF's weight of 602g.
Lens Mounts
The 7artisans 10mm f2.8 II RF has the Canon RF lens mount whereas the Canon 15mm f2.8 Fisheye has the Canon EF lens mount. Some of the latest released cameras that are compatible with these mounts are Canon R6 V, Canon R6 III and Canon C50 for the Canon RF Mount and Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Focal Range
7artisans 10mm f2.8 II RF is a prime lens with fixed focal lenght of 10mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
16mm.
On the other hand, the Canon 15mm f2.8 Fisheye is a prime lens with fixed focal lenght of 15mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 24mm.