The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica SL 100mm F2.8 and the Sigma 200mm F2 DG 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. Sigma 200mm F2 DG is the longer of the two lenses at 201mm. The Leica SL 100mm F2.8 with a length of 137mm, is 64mm shorter. Besides being longer, the Sigma 200mm F2 DG also has a larger diameter of 119mm compared to the Leica SL 100mm F2.8's 77mm 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. Leica SL 100mm F2.8 weighs 801g, which means it is 1019g (55%) lighter than the Sigma 200mm F2 DG which has a weight of 1820g.
Below you can find the dimension and weight table of the Telephoto Prime Lenses in Leica L Mount for size comparison purposes.
Telephoto Lenses in Leica L Mount for Size Comparison
Filter Threads
The Leica SL 100mm F2.8 has a filter size of 67mm whereas the Sigma 200mm F2 DG has a 105mm 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 100mm F2.8:
And these are the 105mm filters that we recommend for the Sigma 200mm F2 DG:
Lens Mounts
Both the Leica SL 100mm F2.8 and the Sigma 200mm F2 DG has the same Leica L lens mount. Some of the latest released cameras that are compatible with the Leica L lenses are Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE.
Sigma 200mm F2 DG is also available in Sony E mount.
Focal Range
Leica SL 100mm F2.8 is a prime lens with fixed focal lenght of 100mm.
On the other hand, the Sigma 200mm F2 DG is a prime lens with fixed focal lenght of 200mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 300mm.
