The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 28-105mm f2.8 and the Sigma 135mm F1.8 DG HSM A 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 28-105mm f2.8 is the longer of the two lenses at 158mm. The Sigma 135mm F1.8 DG HSM A with a length of 139mm, is 19mm shorter. On the other hand, the Sigma 135mm F1.8 DG HSM A has a larger diameter of 91mm compared to the Sigma 28-105mm f2.8's 88mm diameter.
Below you can find a scaled side-by-side image of Sigma 28-105mm f2.8 and Sigma 135mm F1.8 DG HSM A to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 28-105mm f2.8 and the Sigma 135mm F1.8 DG HSM A Size and Weight 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 28-105mm f2.8 weighs 995g, which means it is 135g (11%) lighter than the Sigma 135mm F1.8 DG HSM A which has a weight of 1130g.
Filter Threads
Both the Sigma 28-105mm f2.8 and the Sigma 135mm F1.8 DG HSM A 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 28-105mm f2.8 and the Sigma 135mm F1.8 DG HSM A has the same Leica L lens mount . Some of the latest released cameras that are compatible with the Leica L lenses are Leica SL3-P , Panasonic S1 II and Panasonic S1 IIE .
Focal Range
Sigma 28-105mm f2.8 has a focal range of 28-105mm and
3.8X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
42 - 157.5mm .
On the other hand, the Sigma 135mm F1.8 DG HSM A is a prime lens with fixed focal lenght of 135mm.
