The Leica Super-Angulon 21mm design was originally developed by Schneider and later brought to Leitz. It can focus very closely (0.4m), which is remarkable for a Leica M lens, and produces a square-shaped bokeh blur. This lens is exceptionally sharp and produces beautiful rectilinear images. Using a Super-Angulon lens can instantly transform any photographer into Jeanloup Sieff.
Not suitable for landscapes
As a general rule, the further a lens’ focal length is from 50mm, the less useful and more challenging it becomes. The Super-Angulon is not an ideal substitute for a perspective control lens for architecture and landscapes. However, it is highly effective at capturing close-up, detailed shots of subjects. With a Super-Angulon lens, you can isolate a subject and capture more background context than with a “normal” lens.
Digital Leica compatibility
The Super-Angulon lens is compatible with digital Leica M cameras. However, there may be issues with color shifting at the edges and corners, which can be corrected by converting the image to black and white. This lens also has a tendency to flare easily, and may overexpose on some Leica M cameras (such as the M8 and M9) when not used in live view. Despite these challenges, the lens still produces beautiful results, especially when used with film.
F4.0 vs F3.4
The f/3.4 Super-Angulon lens is optically better than the f/4.0 version.
Voigtlander 21mm
The Voigtlander 21mm lens is a more affordable option than the Leica Super-Angulon. However, many Voigtlander users may eventually be tempted by the classic design and nostalgic attraction of the Super-Angulon lens.
In conclusion, my ideal life would consist of a good lens, good camera, and a roll of film.