The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Panasonic S 16-35mm F4 and the Leica Tri-Elmar-M 16-18-21mm f4 ASPH for their suitability to various photography scenarios:
Size and Weight Comparison
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 Tri-Elmar-M 16-18-21mm f4 ASPH weighs 335g, 32% (165g) lighter than the Panasonic S 16-35mm F4's weight of 500g.
Lens Mounts
The Panasonic S 16-35mm F4 has the Leica L lens mount whereas the Leica Tri-Elmar-M 16-18-21mm f4 ASPH has the Leica M lens mount. Some of the latest released cameras that are compatible with these mounts are Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and Leica M EV1, Leica M11-D and Pixii Max for the Leica M Mount.
Focal Range
Panasonic S 16-35mm F4 has a focal range of 16-35mm and
2.2X zoom ratio .
On the other hand, the Leica Tri-Elmar-M 16-18-21mm f4 ASPH has a focal range of 16-21mm and 1.3X zoom ratio .
