The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox 28mm F4.5 FE and the Leica Summicron-M 28mm 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 Summicron-M 28mm f2 ASPH is the longer of the two lenses at 41mm. The Viltrox 28mm F4.5 FE with a length of 20mm, is 21mm shorter. On the other hand, the Viltrox 28mm F4.5 FE has a larger diameter of 60mm compared to the Leica Summicron-M 28mm f2 ASPH'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. Viltrox 28mm F4.5 FE weighs 88g, which means it is 182g (67%) lighter than the Leica Summicron-M 28mm f2 ASPH which has a weight of 270g.
Lens Mounts
The Viltrox 28mm F4.5 FE has the Sony E lens mount whereas the Leica Summicron-M 28mm f2 ASPH 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
28mm but while Viltrox 28mm F4.5 FE has the fastest aperture of
F4.5, the Leica Summicron-M 28mm f2 ASPH's widest aperture value is
F2.0.
