The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica SL 50mm f2 ASPH and the Panasonic S 35mm F1.8 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 50mm f2 ASPH is the longer of the two lenses at 83mm. The Panasonic S 35mm F1.8 with a length of 82mm, is 1mm shorter. Besides being longer, the Leica SL 50mm f2 ASPH also has a larger diameter of 75mm compared to the Panasonic S 35mm F1.8's 74mm diameter.
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Below you can find a scaled side-by-side image of Leica SL 50mm f2 ASPH and Panasonic S 35mm F1.8 to get a better idea of how their sizes compare in real life.
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 35mm F1.8 weighs 295g, 26% (107g) lighter than the Leica SL 50mm f2 ASPH's weight of 402g.
Below you can find the dimension and weight table of the Standard Prime Lenses in Leica L Mount for size comparison purposes.
Standard Lenses in Leica L Mount for Size Comparison
Filter Threads
Both the Leica SL 50mm f2 ASPH and the Panasonic S 35mm F1.8 have the same Filter thread size of 67mm.
Below are links to the 67mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Leica SL 50mm f2 ASPH and the Panasonic S 35mm F1.8 has the same Leica L lens mount. Some of the latest released cameras that are compatible with the Leica L lenses are Leica SL3, Panasonic S5 II and Panasonic S5 II X.
Focal Range
Leica SL 50mm f2 ASPH 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.
On the other hand, the Panasonic S 35mm F1.8 is a prime lens with fixed focal lenght of 35mm.