Using 120/220 film, the 90° angle of view is equivalent to an ultra-wide angle 22mm focal length (compared to 35mm format) and for digital capture it acts as a normal/wide angle lens. This state-of-the-art lens design maintains high contrast and resolution continuously from infinity focus to the 13.75 minimum focusing distance. The characteristic deep depth of field will be an advantage for many applications, including landscape, group and documentary photography. Each lens element is precisely polished and coated using Mamiya's proprietary multi-coating process to increase light transmission, dramatically reduce flare, and ensure crisp clean whites and vibrant, yet natural colors. An independent manual focus/autofocus setting ring is located on the lens for quick changes in and out of autofocus while maintaining a natural camera balance.