The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 24-70mm F2.8 DG OS HSM and the Sigma 135mm F1.8 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 135mm F1.8 DG HSM is the longer of the two lenses at 115mm. The Sigma 24-70mm F2.8 DG OS HSM with a length of 108mm, is 7mm shorter. Besides being longer, the Sigma 135mm F1.8 DG HSM also has a larger diameter of 91mm compared to the Sigma 24-70mm F2.8 DG OS HSM'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 DG OS HSM weighs 1020g, which means it is 110g (9%) lighter than the Sigma 135mm F1.8 DG HSM which has a weight of 1130g.
Filter Threads
Both the Sigma 24-70mm F2.8 DG OS HSM and the Sigma 135mm F1.8 DG 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
Both the Sigma 24-70mm F2.8 DG OS HSM and the Sigma 135mm F1.8 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 24-70mm F2.8 DG OS HSM is also available in the Nikon F (FX) and Canon EF mounts.
Sigma 135mm F1.8 DG HSM is also available in Nikon F (FX) , Canon EF and Sony E mounts.
Focal Range
Sigma 24-70mm F2.8 DG OS HSM has a focal range of 24-70mm and
2.9X zoom ratio .
On the other hand, the Sigma 135mm F1.8 DG HSM is a prime lens with fixed focal lenght of 135mm.
