The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica M 35mm f1.2 and the Sigma 35mm F1.2 II 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 35mm F1.2 II is the longer of the two lenses at 113mm. The Leica M 35mm f1.2 with a length of 50mm, is 63mm shorter. Besides being longer, the Sigma 35mm F1.2 II also has a larger diameter of 81mm compared to the Leica M 35mm f1.2's 65mm 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 M 35mm f1.2 weighs 416g, which means it is 334g (44%) lighter than the Sigma 35mm F1.2 II which has a weight of 750g.
Filter Threads
The Leica M 35mm f1.2 has a filter size of 49mm whereas the Sigma 35mm F1.2 II has a 72mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 49mm filters that we recommend you to consider for the Leica M 35mm f1.2:
And these are the 72mm filters that we recommend for the Sigma 35mm F1.2 II:
Lens Mounts
The Leica M 35mm f1.2 has the Leica M lens mount whereas the Sigma 35mm F1.2 II has the Sony E lens mount. Some of the latest released cameras that are compatible with these mounts are Leica M EV1, Leica M11-D and Pixii Max for the Leica M Mount and Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount.
Sigma 35mm F1.2 II is also available in Leica L mount.
Focal Range
Both lenses have the same focal range of
35mm and the fastest aperture of
F1.2.