The multi-layer coating of the all-metal lens provides excellent light transmission and effectively reduces stray light. The lens is constructed with special glasses that have a high refractive index and low dispersion, allowing for high resolution. Multi-coated lenses ensure great color reproduction through better light transmission. The images impress with smooth, round bokeh and excellent sharpness. Manual focusing offers great enjoyment for a perfect experience with manual control. The minimum focusing distance is 0.25 m.