The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 50mm F1.4 DG HSM A and the Sigma 24-70mm F2.8 EX 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 50mm F1.4 DG HSM A is the longer of the two lenses at 100mm. The Sigma 24-70mm F2.8 EX DG HSM with a length of 95mm, is 5mm shorter. On the other hand, the Sigma 24-70mm F2.8 EX DG HSM has a larger diameter of 89mm compared to the Sigma 50mm F1.4 DG HSM A's 85mm 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 HSM weighs 790g, 3% (25g) lighter than the Sigma 50mm F1.4 DG HSM A's weight of 815g.
Filter Threads
The Sigma 50mm F1.4 DG HSM A has a filter size of 77mm whereas the Sigma 24-70mm F2.8 EX DG HSM has a 82mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 77mm filters that we recommend you to consider for the Sigma 50mm F1.4 DG HSM A:
And these are the 82mm filters that we recommend for the Sigma 24-70mm F2.8 EX DG HSM:
Lens Mounts
Both the Sigma 50mm F1.4 DG HSM A and the Sigma 24-70mm F2.8 EX DG HSM 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 50mm F1.4 DG HSM A is also available in the Canon EF , Sony Alpha, Nikon F (FX) and Leica L mounts.
Sigma 24-70mm F2.8 EX DG HSM is also available in Canon EF , Pentax KAF3, Sony Alpha and Nikon F (FX) mounts.
Focal Range
Sigma 50mm F1.4 DG HSM A is a prime lens with fixed focal lenght of 50mm.
On the other hand, the Sigma 24-70mm F2.8 EX DG HSM has a focal range of 24-70mm and 2.9X zoom ratio .
