The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 24-70mm F2.8 EX DG and the Sony 24-70mm F2.8 ZA SSM II 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 24-70mm F2.8 EX DG is the longer of the two lenses at 116mm. The Sony 24-70mm F2.8 ZA SSM II with a length of 111mm, is 5mm shorter. Besides being longer, the Sigma 24-70mm F2.8 EX DG also has a larger diameter of 89mm compared to the Sony 24-70mm F2.8 ZA SSM II's 83mm 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 24-70mm F2.8 EX DG weighs 715g, which means it is 259g (26%) lighter than the Sony 24-70mm F2.8 ZA SSM II which has a weight of 974g.
Below you can find the dimension and weight table of the Standard Zoom Lenses in Sony Alpha Mount for size comparison purposes.
Standard Lenses in Sony Alpha Mount for Size Comparison
Filter Threads
The Sigma 24-70mm F2.8 EX DG has a filter size of 82mm whereas the Sony 24-70mm F2.8 ZA SSM II has a 77mm 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 24-70mm F2.8 EX DG:
And these are the 77mm filters that we recommend for the Sony 24-70mm F2.8 ZA SSM II:
Lens Mounts
Both the Sigma 24-70mm F2.8 EX DG and the Sony 24-70mm F2.8 ZA SSM II has the same Sony Alpha lens mount. Some of the latest released cameras that are compatible with the Sony Alpha lenses are Sony A99 II, Sony A68 and Sony A77 II.
Sigma 24-70mm F2.8 EX DG is also available in the Canon EF , Pentax KAF, Sigma SA and Nikon F (FX) mounts.
Focal Range
Both lenses have the same focal range of
24-70mm and the fastest aperture of
F2.8.
