The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica SL 24-70mm F2.8 and the Panasonic S 24-105mm F4 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 24-70mm F2.8 is the longer of the two lenses at 123mm. The Panasonic S 24-105mm F4 with a length of 118mm, is 5mm shorter. Besides being longer, the Leica SL 24-70mm F2.8 also has a larger diameter of 88mm compared to the Panasonic S 24-105mm F4's 84mm diameter.
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Below you can find a scaled side-by-side image of Leica SL 24-70mm F2.8 and Panasonic S 24-105mm F4 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 24-105mm F4 weighs 680g, 20% (176g) lighter than the Leica SL 24-70mm F2.8's weight of 856g.
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 Leica SL 24-70mm F2.8 has a filter size of 82mm whereas the Panasonic S 24-105mm F4 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 82mm filters that we recommend you to consider for the Leica SL 24-70mm F2.8:
And these are the 77mm filters that we recommend for the Panasonic S 24-105mm F4:
Lens Mounts
Both the Leica SL 24-70mm F2.8 and the Panasonic S 24-105mm F4 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 24-70mm F2.8 has a focal range of 24-70mm and
2.9X zoom ratio .
On the other hand, the Panasonic S 24-105mm F4 has a focal range of 24-105mm and 4.4X zoom ratio .