The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony Zeiss FE 50mm F1.4 ZA and the Leica Summicron-M 50mm f2 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. Sony Zeiss FE 50mm F1.4 ZA is the longer of the two lenses at 108mm. The Leica Summicron-M 50mm f2 with a length of 44mm, is 64mm shorter. Besides being longer, the Sony Zeiss FE 50mm F1.4 ZA also has a larger diameter of 84mm compared to the Leica Summicron-M 50mm f2'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 50mm f2 weighs 240g, 69% (538g) lighter than the Sony Zeiss FE 50mm F1.4 ZA's weight of 778g.
Filter Threads
The Sony Zeiss FE 50mm F1.4 ZA has a filter size of 72mm whereas the Leica Summicron-M 50mm f2 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 72mm filters that we recommend you to consider for the Sony Zeiss FE 50mm F1.4 ZA:
And these are the 39mm filters that we recommend for the Leica Summicron-M 50mm f2:
Lens Mounts
The Sony Zeiss FE 50mm F1.4 ZA has the Sony E lens mount whereas the Leica Summicron-M 50mm f2 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.
Focal Range
Both lenses have the same focal range of
50mm but while Sony Zeiss FE 50mm F1.4 ZA has the fastest aperture of
F1.4, the Leica Summicron-M 50mm f2's widest aperture value is
F2.0.