The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 35mm F2 DG DN and the Leica Summicron-M 35mm f2 ASPH 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 F2 DG DN is the longer of the two lenses at 65mm. The Leica Summicron-M 35mm f2 ASPH with a length of 35mm, is 30mm shorter. Besides being longer, the Sigma 35mm F2 DG DN also has a larger diameter of 70mm compared to the Leica Summicron-M 35mm f2 ASPH'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 35mm f2 ASPH weighs 255g, 21% (70g) lighter than the Sigma 35mm F2 DG DN's weight of 325g.
Filter Threads
The Sigma 35mm F2 DG DN has a filter size of 58mm whereas the Leica Summicron-M 35mm f2 ASPH 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 35mm F2 DG DN:
And these are the 39mm filters that we recommend for the Leica Summicron-M 35mm f2 ASPH:
Lens Mounts
The Sigma 35mm F2 DG DN has the Sony E lens mount whereas the Leica Summicron-M 35mm f2 ASPH has the Leica M lens mount. Some of the latest released cameras that are compatible with these mounts are Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount and Leica M EV1, Leica M11-D and Pixii Max for the Leica M Mount.
Sigma 35mm F2 DG DN is also available in the Leica L mount.
Focal Range
Both lenses have the same focal range of
35mm and the fastest aperture of
F2.0.
