21mm · f/3.5
The Yashica ML 21mm f/3.5 is a rare, manual-focus wide-angle lens praised for its excellent center sharpness, contrast, and color at f/8. However, corner performance is weaker compared to rivals like the OM 21mm. Build quality is solid, with a compact design and 72mm filter thread. It suits landscape photographers who prioritize center performance and can accept softer edges, but its high collector price (~€350+) may deter some. OpticalLimits notes that 21mm lenses require careful leveling to avoid distortion.