The versatile HD PENTAX-D FA645 35mm lens offers redesigned aspherical lens elements, reducing the field curvature to enhance your overall image description. Equipped with HD Coating, this lens delivers bright, high-contrast images free of flare and ghosting, even under demanding lighting conditions. SP coating applied to the front surface of the lens element helps to protect the lens surface and keep it free of smudges. The nine-blade rounded diaphragm produces a smooth, beautiful bokeh effect, while minimizing the streaking effect of point light sources. This lens is sure to become your medium format go-to wide-angle lens when shooting landscape and architecture.