The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 28-70mm F3.5-5.6 II and the Sigma 28-70mm F2.8 DG DN 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 28-70mm F2.8 DG DN is the longer of the two lenses at 102mm. The Sony FE 28-70mm F3.5-5.6 II with a length of 83mm, is 19mm shorter. On the other hand, the Sony FE 28-70mm F3.5-5.6 II has a larger diameter of 73mm compared to the Sigma 28-70mm F2.8 DG DN's 72mm 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. Sony FE 28-70mm F3.5-5.6 II weighs 295g, which means it is 175g (37%) lighter than the Sigma 28-70mm F2.8 DG DN which has a weight of 470g.
Below you can find the dimension and weight table of the Standard Zoom Lenses in Sony E Mount for size comparison purposes.
Standard Lenses in Sony E Mount for Size Comparison
Filter Threads
The Sony FE 28-70mm F3.5-5.6 II has a filter size of 55mm whereas the Sigma 28-70mm F2.8 DG DN has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 55mm filters that we recommend you to consider for the Sony FE 28-70mm F3.5-5.6 II:
And these are the 67mm filters that we recommend for the Sigma 28-70mm F2.8 DG DN:
Lens Mounts
Both the Sony FE 28-70mm F3.5-5.6 II and the Sigma 28-70mm F2.8 DG DN has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5, Sony A7R VI and Sony A7 V.
Focal Range
Both lenses have the same focal range of
28-70mm but while Sony FE 28-70mm F3.5-5.6 II has the fastest aperture of
F3.5 - F5.6, the Sigma 28-70mm F2.8 DG DN's widest aperture value is
F2.8.
