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 50mm F1.4 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. Panasonic S 50mm F1.4 is the longer of the two lenses at 130mm. The Leica SL 50mm f2 ASPH with a length of 83mm, is 47mm shorter. Besides being longer, the Panasonic S 50mm F1.4 also has a larger diameter of 90mm compared to the Leica SL 50mm f2 ASPH's 75mm diameter.
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Below you can find a scaled side-by-side image of Leica SL 50mm f2 ASPH and Panasonic S 50mm F1.4 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. Leica SL 50mm f2 ASPH weighs 402g, which means it is 553g (57%) lighter than the Panasonic S 50mm F1.4 which has a weight of 955g.
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
The Leica SL 50mm f2 ASPH has a filter size of 67mm whereas the Panasonic S 50mm F1.4 has a 77mm 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 50mm f2 ASPH:
And these are the 77mm filters that we recommend for the Panasonic S 50mm F1.4:
Lens Mounts
Both the Leica SL 50mm f2 ASPH and the Panasonic S 50mm F1.4 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
Both lenses have the same focal range of
50mm but while Leica SL 50mm f2 ASPH has the fastest aperture of
F2.0, the Panasonic S 50mm F1.4's widest aperture value is
F1.4.