35mm · f/2.8
The Porst Weitwinkel Auto 35mm f/2.8 is a vintage wide-angle lens with moderate optical performance. Its strengths include decent sharpness when stopped down, but it suffers from noticeable chromatic aberration and flare wide open, according to lichtsucher.blogspot.com. Build quality is typical for its era: all-metal construction with a smooth focus ring, though the aperture ring can be stiff. Handling is straightforward on manual cameras. This lens suits photographers seeking an affordable, compact wide-angle for film or adapted digital use, provided they accept its optical limitations.