The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Panasonic S 14-28mm F4-5.6 and the Sigma 28-70mm F2.8 DG DN C 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 C is the longer of the two lenses at 102mm. The Panasonic S 14-28mm F4-5.6 with a length of 90mm, is 12mm shorter. On the other hand, the Panasonic S 14-28mm F4-5.6 has a larger diameter of 84mm compared to the Sigma 28-70mm F2.8 DG DN C's 72mm diameter.
Below you can find a scaled side-by-side image of Panasonic S 14-28mm F4-5.6 and Sigma 28-70mm F2.8 DG DN C to get a better idea of how their sizes compare in real life.
Comparison image of the Panasonic S 14-28mm F4-5.6 and the Sigma 28-70mm F2.8 DG DN C Size and Weight 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. Panasonic S 14-28mm F4-5.6 weighs 345g, which means it is 125g (26%) lighter than the Sigma 28-70mm F2.8 DG DN C which has a weight of 470g.
Filter Threads
The Panasonic S 14-28mm F4-5.6 has a filter size of 77mm whereas the Sigma 28-70mm F2.8 DG DN C 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 77mm filters that we recommend you to consider for the Panasonic S 14-28mm F4-5.6:
And these are the 67mm filters that we recommend for the Sigma 28-70mm F2.8 DG DN C:
Lens Mounts
Both the Panasonic S 14-28mm F4-5.6 and the Sigma 28-70mm F2.8 DG DN C has the same Leica L lens mount . Some of the latest released cameras that are compatible with the Leica L lenses are Leica SL3-P , Panasonic S1 II and Panasonic S1 IIE .
Focal Range
Panasonic S 14-28mm F4-5.6 has a focal range of 14-28mm and
2.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
21 - 42mm .
On the other hand, the Sigma 28-70mm F2.8 DG DN C has a focal range of 28-70mm and 2.5X zoom ratio .