The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica Elmarit-TL 18mm F2.8 ASPH and the Voigtlander 21mm F4 Color Skopar II 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. Voigtlander 21mm F4 Color Skopar II is the longer of the two lenses at 25mm. The Leica Elmarit-TL 18mm F2.8 ASPH with a length of 21mm, is 4mm shorter. On the other hand, the Leica Elmarit-TL 18mm F2.8 ASPH has a larger diameter of 61mm compared to the Voigtlander 21mm F4 Color Skopar II's 55mm 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 Elmarit-TL 18mm F2.8 ASPH weighs 80g, which means it is 56g (41%) lighter than the Voigtlander 21mm F4 Color Skopar II which has a weight of 136g.
Filter Threads
Both the Leica Elmarit-TL 18mm F2.8 ASPH and the Voigtlander 21mm F4 Color Skopar II have the same Filter thread size of 39mm.
Below are links to the 39mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Leica Elmarit-TL 18mm F2.8 ASPH has the Leica TL lens mount whereas the Voigtlander 21mm F4 Color Skopar II has the Leica M lens mount. Some of the latest released cameras that are compatible with these mounts are , and for the Leica TL Mount and Leica M11 Monochrome, Leica M11 and Leica M10 for the Leica M Mount.
Focal Range
Leica Elmarit-TL 18mm F2.8 ASPH is a prime lens with fixed focal lenght of 18mm which has an effective (full-frame 35mm equivalent) focal range of
27mm when used on a APS-C / DX format camera.
On the other hand, the Voigtlander 21mm F4 Color Skopar II is a prime lens with fixed focal lenght of 21mm.