The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 40mm F1.4 DG HSM A and the Sigma 24-105mm F4 DG OS 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 40mm F1.4 DG HSM A is the longer of the two lenses at 157mm. The Sigma 24-105mm F4 DG OS HSM with a length of 109mm, is 48mm shorter. On the other hand, the Sigma 24-105mm F4 DG OS HSM has a larger diameter of 89mm compared to the Sigma 40mm F1.4 DG HSM A's 88mm 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 24-105mm F4 DG OS HSM weighs 885g, 29% (375g) lighter than the Sigma 40mm F1.4 DG HSM A's weight of 1260g.
Filter Threads
Both the Sigma 40mm F1.4 DG HSM A and the Sigma 24-105mm F4 DG OS HSM have the same Filter thread size of 82mm.
Below are links to the 82mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Sigma 40mm F1.4 DG HSM A has the Sony E lens mount whereas the Sigma 24-105mm F4 DG OS HSM has the Canon EF lens mount. Some of the latest released cameras that are compatible with these mounts are Sony FX5, Sony A7R VI and Sony A7 V for the Sony E 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 40mm F1.4 DG HSM A is also available in the Canon EF , Nikon F (FX), Sigma SA and Leica L mounts.
Sigma 24-105mm F4 DG OS HSM is also available in Nikon F (FX) , Sony Alpha and Sigma SA mounts.
Focal Range
Sigma 40mm F1.4 DG HSM A is a prime lens with fixed focal lenght of 40mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
60mm.
On the other hand, the Sigma 24-105mm F4 DG OS HSM has a focal range of 24-105mm and 4.4X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 38.4 - 168mm.
