The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Thypoch 21mm f3.5 and the Leica Summilux-M 24mm f1.4 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 Summilux-M 24mm f1.4 ASPH is the longer of the two lenses at 59mm. The Thypoch 21mm f3.5 with a length of 35mm, is 24mm shorter. Besides being longer, the Leica Summilux-M 24mm f1.4 ASPH also has a larger diameter of 61mm compared to the Thypoch 21mm f3.5's 58mm 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. Thypoch 21mm f3.5 weighs 131g, which means it is 369g (73%) lighter than the Leica Summilux-M 24mm f1.4 ASPH which has a weight of 500g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Leica M Mount for size comparison purposes.
Wideangle Lenses in Leica M Mount for Size Comparison
Lens Mounts
Both the Thypoch 21mm f3.5 and the Leica Summilux-M 24mm f1.4 ASPH has the same Leica M lens mount. Some of the latest released cameras that are compatible with the Leica M lenses are Leica M EV1, Leica M11-D and Pixii Max.
Focal Range
Thypoch 21mm f3.5 is a prime lens with fixed focal lenght of 21mm.
On the other hand, the Leica Summilux-M 24mm f1.4 ASPH is a prime lens with fixed focal lenght of 24mm.