The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 70mm F2.8 DG Macro 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 70mm F2.8 DG Macro with a length of 106mm, is 31mm shorter. Besides being longer, the Sigma 150mm F2.8 EX DG Macro HSM also has a larger diameter of 80mm compared to the Sigma 70mm F2.8 DG Macro's 71mm 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 70mm F2.8 DG Macro weighs 515g, which means it is 380g (42%) lighter than the Sigma 150mm F2.8 EX DG Macro HSM which has a weight of 895g.
Below you can find the dimension and weight table of the Macro Prime Lenses in Sigma SA Mount for size comparison purposes.
Macro Lenses in Sigma SA Mount for Size Comparison
Filter Threads
The Sigma 70mm F2.8 DG Macro has a filter size of 49mm 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 49mm filters that we recommend you to consider for the Sigma 70mm F2.8 DG Macro:
And these are the 72mm filters that we recommend for the Sigma 150mm F2.8 EX DG Macro HSM:
Lens Mounts
Both the Sigma 70mm F2.8 DG Macro 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 70mm F2.8 DG Macro is also available in Canon EF , Nikon F (FX) 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 70mm F2.8 DG Macro is a prime lens with fixed focal lenght of 70mm.
On the other hand, the Sigma 150mm F2.8 EX DG Macro HSM is a prime lens with fixed focal lenght of 150mm.