55mm · f/2
The Yashica DSB 55mm f/2 lens is a manual-focus prime known for decent sharpness when stopped down, but wide open it can be soft and prone to flare. Build quality is typical of its era—all-metal with a smooth focus ring, though some find the aperture ring a bit stiff. It suits photographers seeking a compact, affordable normal lens for vintage character, but those wanting edge-to-edge sharpness may prefer modern alternatives.