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 24-70mm F2.8 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 40mm F1.4 DG HSM A is the longer of the two lenses at 131mm. The Sigma 24-70mm F2.8 EX DG with a length of 116mm, is 15mm shorter. On the other hand, the Sigma 24-70mm F2.8 EX DG 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 24-70mm F2.8 EX DG weighs 715g, 40% (485g) lighter than the Sigma 40mm F1.4 DG HSM A's weight of 1200g.
Filter Threads
Both the Sigma 40mm F1.4 DG HSM A and the Sigma 24-70mm F2.8 EX DG 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
Both the Sigma 40mm F1.4 DG HSM A and the Sigma 24-70mm F2.8 EX DG has the same Sigma SA lens mount. Some of the latest released cameras that are compatible with the Sigma SA lenses are Sigma Quattro, Sigma Quattro H and Sigma SD1 Merrill.
Sigma 40mm F1.4 DG HSM A is also available in the Canon EF , Nikon F (FX), Sony E and Leica L mounts.
Sigma 24-70mm F2.8 EX DG is also available in Canon EF , Pentax KAF, Sony Alpha and Nikon F (FX) mounts.
Focal Range
Sigma 40mm F1.4 DG HSM A is a prime lens with fixed focal lenght of 40mm.
On the other hand, the Sigma 24-70mm F2.8 EX DG has a focal range of 24-70mm and 2.9X zoom ratio .
