The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 50mm F2 C and the Leica Summicron-M 50mm f2 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 50mm F2 C is the longer of the two lenses at 68mm. The Leica Summicron-M 50mm f2 with a length of 44mm, is 24mm shorter. Besides being longer, the Sigma 50mm F2 C also has a larger diameter of 70mm compared to the Leica Summicron-M 50mm f2's 53mm 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 Summicron-M 50mm f2 weighs 240g, 31% (110g) lighter than the Sigma 50mm F2 C's weight of 350g.
Filter Threads
The Sigma 50mm F2 C has a filter size of 58mm whereas the Leica Summicron-M 50mm f2 has a 39mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 58mm filters that we recommend you to consider for the Sigma 50mm F2 C:
And these are the 39mm filters that we recommend for the Leica Summicron-M 50mm f2:
Lens Mounts
The Sigma 50mm F2 C has the Leica L lens mount whereas the Leica Summicron-M 50mm f2 has the Leica M lens mount. Some of the latest released cameras that are compatible with these mounts are Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and Leica M EV1, Leica M11-D and Pixii Max for the Leica M Mount.
Sigma 50mm F2 C is also available in the Sony E mount.
Focal Range
Both lenses have the same focal range of
50mm and the fastest aperture of
F2.0.
