The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 28-70mm F2.8 DG DN C and the Leica SL 24-90mm F2.8-4 ASPH 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. Leica SL 24-90mm F2.8-4 ASPH is the longer of the two lenses at 138mm. The Sigma 28-70mm F2.8 DG DN C with a length of 102mm, is 36mm shorter. Besides being longer, the Leica SL 24-90mm F2.8-4 ASPH also has a larger diameter of 88mm compared to the Sigma 28-70mm F2.8 DG DN C'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. Sigma 28-70mm F2.8 DG DN C weighs 470g, which means it is 670g (58%) lighter than the Leica SL 24-90mm F2.8-4 ASPH which has a weight of 1140g.
Below you can find the dimension and weight table of the Standard Zoom Lenses in Leica L Mount for size comparison purposes.
Standard Lenses in Leica L Mount for Size Comparison
Filter Threads
The Sigma 28-70mm F2.8 DG DN C has a filter size of 67mm whereas the Leica SL 24-90mm F2.8-4 ASPH has a 82mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 67mm filters that we recommend you to consider for the Sigma 28-70mm F2.8 DG DN C:
And these are the 82mm filters that we recommend for the Leica SL 24-90mm F2.8-4 ASPH:
Lens Mounts
Both the Sigma 28-70mm F2.8 DG DN C and the Leica SL 24-90mm F2.8-4 ASPH 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
Sigma 28-70mm F2.8 DG DN C has a focal range of 28-70mm and
2.5X zoom ratio .
On the other hand, the Leica SL 24-90mm F2.8-4 ASPH has a focal range of 24-90mm and 3.8X zoom ratio .
