The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 50mm F2.5 G 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 FE 50mm F2.5 G is the longer of the two lenses at 45mm. The Leica Summicron-M 50mm f2 with a length of 44mm, is 1mm shorter. Besides being longer, the Sony FE 50mm F2.5 G also has a larger diameter of 68mm 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. Sony FE 50mm F2.5 G weighs 174g, which means it is 66g (27%) lighter than the Leica Summicron-M 50mm f2 which has a weight of 240g.
Filter Threads
The Sony FE 50mm F2.5 G has a filter size of 49mm 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 49mm filters that we recommend you to consider for the Sony FE 50mm F2.5 G:
And these are the 39mm filters that we recommend for the Leica Summicron-M 50mm f2:
Lens Mounts
The Sony FE 50mm F2.5 G 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 FE 50mm F2.5 G has the fastest aperture of
F2.5, the Leica Summicron-M 50mm f2's widest aperture value is
F2.0.
