The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica SL 28-70mm f2.8 and the Sigma 50mm F1.4 DG DN Art 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 50mm F1.4 DG DN Art is the longer of the two lenses at 110mm. The Leica SL 28-70mm f2.8 with a length of 102mm, is 8mm shorter. Besides being longer, the Sigma 50mm F1.4 DG DN Art also has a larger diameter of 78mm compared to the Leica SL 28-70mm f2.8's 73mm diameter.
Below you can find a scaled side-by-side image of Leica SL 28-70mm f2.8 and Sigma 50mm F1.4 DG DN Art to get a better idea of how their sizes compare in real life.
Comparison image of the Leica SL 28-70mm f2.8 and the Sigma 50mm F1.4 DG DN Art 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. Leica SL 28-70mm f2.8 weighs 572g, which means it is 97g (14%) lighter than the Sigma 50mm F1.4 DG DN Art which has a weight of 669g.
Filter Threads
The Leica SL 28-70mm f2.8 has a filter size of 67mm whereas the Sigma 50mm F1.4 DG DN Art has a 72mm 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 Leica SL 28-70mm f2.8:
And these are the 72mm filters that we recommend for the Sigma 50mm F1.4 DG DN Art:
Lens Mounts
Both the Leica SL 28-70mm f2.8 and the Sigma 50mm F1.4 DG DN Art 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 .
Sony E mount.
Focal Range
Leica SL 28-70mm f2.8 has a focal range of 28-70mm and
2.5X zoom ratio .
On the other hand, the Sigma 50mm F1.4 DG DN Art is a prime lens with fixed focal lenght of 50mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 75mm .
