The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 56mm F1.4 DC 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 56mm F1.4 DC DN C with a length of 60mm, is 78mm shorter. Besides being longer, the Leica SL 24-90mm F2.8-4 ASPH also has a larger diameter of 88mm compared to the Sigma 56mm F1.4 DC DN C's 67mm 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 56mm F1.4 DC DN C weighs 280g, which means it is 860g (75%) lighter than the Leica SL 24-90mm F2.8-4 ASPH which has a weight of 1140g.
Filter Threads
The Sigma 56mm F1.4 DC DN C has a filter size of 55mm 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 55mm filters that we recommend you to consider for the Sigma 56mm F1.4 DC 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 56mm F1.4 DC 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 TL2, Leica TL and Leica T Typ 701.
Sigma 56mm F1.4 DC DN C is also available in the Micro Four Thirds and Sony E mounts.
Focal Range
Sigma 56mm F1.4 DC DN C is a prime lens with fixed focal lenght of 56mm which has an effective (full-frame 35mm equivalent) focal range of
84mm when used on a APS-C / DX format camera.
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 .
