The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 120-300mm F2.8 EX DG OS HSM and the Sigma 120-300mm F2.8 DG OS 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 120-300mm F2.8 DG OS HSM is the longer of the two lenses at 291mm. The Sigma 120-300mm F2.8 EX DG OS HSM with a length of 289mm, is 2mm shorter. Besides being longer, the Sigma 120-300mm F2.8 DG OS HSM also has a larger diameter of 124mm compared to the Sigma 120-300mm F2.8 EX DG OS HSM's 114mm 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.
Filter Threads
Both the Sigma 120-300mm F2.8 EX DG OS HSM and the Sigma 120-300mm F2.8 DG OS HSM have the same Filter thread size of 105mm.
Below are links to the 105mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Sigma 120-300mm F2.8 EX DG OS HSM has the Nikon F (FX) lens mount whereas the Sigma 120-300mm F2.8 DG OS HSM has the Sigma SA lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount and Sigma Quattro, Sigma Quattro H and Sigma SD1 Merrill for the Sigma SA Mount.
Sigma 120-300mm F2.8 EX DG OS HSM is also available in the Canon EF mount.
Sigma 120-300mm F2.8 DG OS HSM is also available in Canon EF and Nikon F (FX) mounts.
Focal Range
Both lenses have the same focal range of
120-300mm and the fastest aperture of
F2.8.
