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 24-105mm 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 24-105mm F4 DG OS HSM is the longer of the two lenses at 109mm. The Sigma 50mm F1.4 DG HSM A with a length of 100mm, is 9mm shorter. Besides being longer, the Sigma 24-105mm F4 DG OS HSM also 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 50mm F1.4 DG HSM A weighs 815g, which means it is 70g (7%) lighter than the Sigma 24-105mm F4 DG OS HSM which has a weight of 885g.
Filter Threads
The Sigma 50mm F1.4 DG HSM A has a filter size of 77mm whereas the Sigma 24-105mm F4 DG OS 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 24-105mm F4 DG OS HSM:
Lens Mounts
Both the Sigma 50mm F1.4 DG HSM A and the Sigma 24-105mm F4 DG OS 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 24-105mm F4 DG OS HSM is also available in Canon EF , Nikon F (FX) and Sony Alpha 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 24-105mm F4 DG OS HSM has a focal range of 24-105mm and 4.4X zoom ratio .