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 Nikon 14mm f2.8D ED 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. Irix 11mm F4 is the longer of the two lenses at 118mm. The Nikon 14mm f2.8D ED with a length of 87mm, is 31mm shorter. Besides being longer, the Irix 11mm F4 also has a larger diameter of 103mm compared to the Nikon 14mm f2.8D ED's 87mm 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. Nikon 14mm f2.8D ED weighs 670g, 15% (120g) lighter than the Irix 11mm F4's weight of 790g.
Lens Mounts
The Irix 11mm F4 has the Canon EF lens mount whereas the Nikon 14mm f2.8D ED has the Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with these mounts are Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount and Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount.
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 Nikon 14mm f2.8D ED is a prime lens with fixed focal lenght of 14mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 21mm.
