The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica Summilux-M 50mm f1.4 ASPH and the Carl Zeiss C Sonnar T1,5/50 ZM 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. Carl Zeiss C Sonnar T1,5/50 ZM is the longer of the two lenses at 63mm. The Leica Summilux-M 50mm f1.4 ASPH with a length of 53mm, is 10mm shorter. Besides being longer, the Carl Zeiss C Sonnar T1,5/50 ZM also has a larger diameter of 56mm compared to the Leica Summilux-M 50mm f1.4 ASPH's 54mm 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 Summilux-M 50mm f1.4 ASPH weighs 335g, which means it is 15g (4%) lighter than the Carl Zeiss C Sonnar T1,5/50 ZM which has a weight of 350g.
Below you can find the dimension and weight table of the Standard Prime Lenses in Leica M Mount for size comparison purposes.
Standard Lenses in Leica M Mount for Size Comparison
Filter Threads
Both the Leica Summilux-M 50mm f1.4 ASPH and the Carl Zeiss C Sonnar T1,5/50 ZM have the same Filter thread size of 46mm.
Below are links to the 46mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Leica Summilux-M 50mm f1.4 ASPH and the Carl Zeiss C Sonnar T1,5/50 ZM 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
Both lenses have the same focal range of
50mm but while Leica Summilux-M 50mm f1.4 ASPH has the fastest aperture of
F1.4, the Carl Zeiss C Sonnar T1,5/50 ZM's widest aperture value is
F1.5.