The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 70mm F2.8 EX DG Macro and the Sigma 70-300mm F4-5.6 DG 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 70-300mm F4-5.6 DG is the longer of the two lenses at 122mm. The Sigma 70mm F2.8 EX DG Macro with a length of 95mm, is 27mm shorter. Besides being longer, the Sigma 70-300mm F4-5.6 DG also has a larger diameter of 77mm compared to the Sigma 70mm F2.8 EX DG Macro's 76mm 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 EX DG Macro weighs 527g, which means it is 23g (4%) lighter than the Sigma 70-300mm F4-5.6 DG which has a weight of 550g.
Lens Mounts
Both the Sigma 70mm F2.8 EX DG Macro and the Sigma 70-300mm F4-5.6 DG 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 EX DG Macro is also available in the Canon EF , Nikon F (FX), Pentax KAF and Sony Alpha mounts.
Sigma 70-300mm F4-5.6 DG is also available in Canon EF , Nikon F (FX), Pentax KAF, Sony Alpha, Sigma SA, Canon EF, Nikon F (FX), Pentax KAF and Sony Alpha mounts.
Focal Range
Sigma 70mm F2.8 EX DG Macro is a prime lens with fixed focal lenght of 70mm.
On the other hand, the Sigma 70-300mm F4-5.6 DG has a focal range of 70-300mm and 4.3X zoom ratio .