The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 135mm F1.8 DG HSM and the Sigma 150mm F2.8 EX DG Macro 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 150mm F2.8 EX DG Macro HSM is the longer of the two lenses at 137mm. The Sigma 135mm F1.8 DG HSM with a length of 115mm, is 22mm shorter. On the other hand, the Sigma 135mm F1.8 DG HSM has a larger diameter of 91mm compared to the Sigma 150mm F2.8 EX DG Macro HSM's 80mm 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 150mm F2.8 EX DG Macro HSM weighs 895g, 20% (235g) lighter than the Sigma 135mm F1.8 DG HSM's weight of 1130g.
Filter Threads
The Sigma 135mm F1.8 DG HSM has a filter size of 82mm whereas the Sigma 150mm F2.8 EX DG Macro HSM has a 72mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 82mm filters that we recommend you to consider for the Sigma 135mm F1.8 DG HSM:
And these are the 72mm filters that we recommend for the Sigma 150mm F2.8 EX DG Macro HSM:
Lens Mounts
Both the Sigma 135mm F1.8 DG HSM and the Sigma 150mm F2.8 EX DG Macro 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 135mm F1.8 DG HSM is also available in the Nikon F (FX) , Canon EF and Sony E mounts.
Sigma 150mm F2.8 EX DG Macro HSM is also available in Canon EF , Nikon F (FX) and Four Thirds mounts.
Focal Range
Sigma 135mm F1.8 DG HSM is a prime lens with fixed focal lenght of 135mm.
On the other hand, the Sigma 150mm F2.8 EX DG Macro HSM is a prime lens with fixed focal lenght of 150mm.