The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica SL 100-400 f5-6.3 and the Panasonic S 70-200 F2.8 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. Panasonic S 70-200 F2.8 is the longer of the two lenses at 209mm. The Leica SL 100-400 f5-6.3 with a length of 198mm, is 11mm shorter. Besides being longer, the Panasonic S 70-200 F2.8 also has a larger diameter of 94mm compared to the Leica SL 100-400 f5-6.3's 88mm diameter.
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Below you can find a scaled side-by-side image of Leica SL 100-400 f5-6.3 and Panasonic S 70-200 F2.8 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. Leica SL 100-400 f5-6.3 weighs 1530g, which means it is 40g (2%) lighter than the Panasonic S 70-200 F2.8 which has a weight of 1570g.
Filter Threads
Both the Leica SL 100-400 f5-6.3 and the Panasonic S 70-200 F2.8 have the same Filter thread size of 82mm.
Below are links to the 82mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Leica SL 100-400 f5-6.3 and the Panasonic S 70-200 F2.8 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 100-400 f5-6.3 has a focal range of 100-400mm and
4.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
150 - 600mm.
On the other hand, the Panasonic S 70-200 F2.8 has a focal range of 70-200mm and 2.9X zoom ratio .