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 Sigma 14mm F1.8 DG HSM 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 14mm F1.8 DG HSM is the longer of the two lenses at 126mm. The Irix 11mm F4 with a length of 118mm, is 8mm shorter. On the other hand, the Irix 11mm F4 has a larger diameter of 103mm compared to the Sigma 14mm F1.8 DG HSM's 95mm diameter.
Below you can find a scaled side-by-side image of Irix 11mm F4 and Sigma 14mm F1.8 DG HSM to get a better idea of how their sizes compare in real life.
Comparison image of the Irix 11mm F4 and the Sigma 14mm F1.8 DG HSM 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. Irix 11mm F4 weighs 790g, which means it is 380g (32%) lighter than the Sigma 14mm F1.8 DG HSM which has a weight of 1170g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Nikon F (FX) Mount for size comparison purposes.
Ultra-Wideangle Nikon F (FX) Mount
Lens Mounts
Both the Irix 11mm F4 and the Sigma 14mm F1.8 DG HSM has the same Nikon F (FX) lens mount . Some of the latest released cameras that are compatible with the Nikon F (FX) lenses are Nikon D6 , Nikon D780 and Nikon D3500 .
Canon EF and Pentax KAF3 mounts.
Sigma SA and Canon EF mounts.
Focal Range
Irix 11mm F4 is a prime lens with fixed focal lenght of 11mm.
On the other hand, the Sigma 14mm F1.8 DG HSM 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 .
