The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Irix 11mm F4 and the Canon 16-35mm F2.8L III 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. Canon 16-35mm F2.8L III is the longer of the two lenses at 128mm. The Irix 11mm F4 with a length of 118mm, is 10mm shorter. On the other hand, the Irix 11mm F4 has a larger diameter of 103mm compared to the Canon 16-35mm F2.8L III's 89mm diameter.
Below you can find a scaled side-by-side image of Irix 11mm F4 and Canon 16-35mm F2.8L III to get a better idea of how their sizes compare in real life.
Comparison image of the Irix 11mm F4 and the Canon 16-35mm F2.8L III 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.
Lens Mounts
Both the Irix 11mm F4 and the Canon 16-35mm F2.8L III has the same Canon EF lens mount . Some of the latest released cameras that are compatible with the Canon EF lenses are Blackmagic URSA 12K LF , Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K .
Irix 11mm F4 is also available in the Nikon F (FX) and Pentax KAF3 mounts.
Focal Range
Irix 11mm F4 is a prime lens with fixed focal lenght of 11mm.
On the other hand, the Canon 16-35mm F2.8L III has a focal range of 16-35mm and 2.2X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 25.6 - 56mm .