The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 17-70mm F2.8-4 DC OS HSM C and the Sigma 17-70mm F2.8-4 DC OS HSM C for their suitability to various photography scenarios:
Size and Weight Comparison
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 17-70mm F2.8-4 DC OS HSM C and the Sigma 17-70mm F2.8-4 DC OS HSM C have the same Filter thread size of 72mm.
Below are links to the 72mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Sigma 17-70mm F2.8-4 DC OS HSM C has the Sony Alpha lens mount whereas the Sigma 17-70mm F2.8-4 DC OS HSM C has the Pentax KAF3 lens mount. Some of the latest released cameras that are compatible with these mounts are Sony A68, Sony A77 II and Sony A58 for the Sony Alpha Mount and , and for the Pentax KAF3 Mount.
Sigma 17-70mm F2.8-4 DC OS HSM C is also available in the Canon EF , Pentax KAF3, Sigma SA and Nikon F (DX) mounts.
Sigma 17-70mm F2.8-4 DC OS HSM C is also available in Canon EF , Sony Alpha, Sigma SA and Nikon F (DX) mounts.
Focal Range
Both lenses have the same focal range of
17-70mm and the fastest aperture of
F2.8 - F4.0.
