The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica APO-Summicron-M 35mm F2 ASPH and the Leica APO 50mm 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. Leica APO 50mm f2 ASPH is the longer of the two lenses at 47mm. The Leica APO-Summicron-M 35mm F2 ASPH with a length of 41mm, is 6mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 53mm.
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 APO 50mm f2 ASPH weighs 300g, 6% (20g) lighter than the Leica APO-Summicron-M 35mm F2 ASPH's weight of 320g.
Filter Threads
Both the Leica APO-Summicron-M 35mm F2 ASPH and the Leica APO 50mm f2 ASPH have the same Filter thread size of 39mm.
Below are links to the 39mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Leica APO-Summicron-M 35mm F2 ASPH and the Leica APO 50mm f2 ASPH has the same Leica M lens mount. Some of the latest released cameras that are compatible with the Leica M lenses are Leica M11 Monochrome, Leica M11 and Leica M10.
Focal Range
Leica APO-Summicron-M 35mm F2 ASPH is a prime lens with fixed focal lenght of 35mm.
On the other hand, the Leica APO 50mm f2 ASPH is a prime lens with fixed focal lenght of 50mm.