The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 24mm F1.4 DG HSM A and the Sigma 24mm F1.8 EX DG 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 24mm F1.4 DG HSM A is the longer of the two lenses at 90mm. The Sigma 24mm F1.8 EX DG with a length of 83mm, is 7mm shorter. Besides being longer, the Sigma 24mm F1.4 DG HSM A also has a larger diameter of 85mm compared to the Sigma 24mm F1.8 EX DG's 84mm 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 24mm F1.8 EX DG weighs 485g, 27% (180g) lighter than the Sigma 24mm F1.4 DG HSM A's weight of 665g.
Filter Threads
Both the Sigma 24mm F1.4 DG HSM A and the Sigma 24mm F1.8 EX DG have the same Filter thread size of 77mm.
Below are links to the 77mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Sigma 24mm F1.4 DG HSM A has the Nikon F (FX) lens mount whereas the Sigma 24mm F1.8 EX DG has the Canon EF lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) 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 24mm F1.4 DG HSM A is also available in the Canon EF , Sigma SA and Leica L mounts.
Sigma 24mm F1.8 EX DG is also available in Nikon F (FX) , Four Thirds, Pentax KAF, Sony Alpha, Sigma SA, Canon EF, Pentax KAF, Sony Alpha, Sigma SA and Nikon F (FX) mounts.
Focal Range
Both lenses have the same focal range of
24mm but while Sigma 24mm F1.4 DG HSM A has the fastest aperture of
F1.4, the Sigma 24mm F1.8 EX DG's widest aperture value is
F1.8.
