Voigtlander's fast 28mm manual focus prime — available in multiple mounts with excellent optics.
The Voigtlander Ultron 28mm f/2 is a compact manual focus wide-angle prime produced by Cosina under the Voigtlander brand. Available in several mounts including Leica M, Nikon F, and various mirrorless mounts across different versions, it offers a fast f/2 aperture at the popular 28mm focal length beloved by street and documentary photographers.
Optical performance is very good. Sharpness is impressive from f/2 in the centre and excellent across the frame by f/4. The Ultron designation indicates a premium optical design. Distortion is minimal for a 28mm lens. Colour rendition is neutral and accurate. Vignetting is present wide open but correctable. Flare resistance is good with modern multi-coating.
Available in multiple mounts depending on the version — Leica M, Nikon F AI-S, and native mirrorless mounts. Filter thread is typically 46mm. Weight varies by version but is approximately 230 grams — compact and lightweight. Build quality is excellent with brass and aluminium construction. Fully manual focus with no electronics in most versions.
Available on the used market at moderate prices. Check for smooth focus ring operation and clean optics. An excellent choice for street photographers who prefer manual focus and want a fast, compact 28mm. The Leica M version is particularly popular for M-mount rangefinder shooters as a more affordable alternative to the Leica Elmarit 28mm.