HD Pentax-D FA* 50mm F1.4 SDM AW

The HD Pentax-D FA* 50mm F1.4 SDM AW is a fast prime lens for the company's full-frame DSLRs. This weather-sealed lens has 15 elements, including one aspherical and three anomalous dispersion. The combination of 'Aero Bright Coating II' and 'HD coating' reduce flare and ghosting in challenging lighting, while the Super Protect coating keeps dust and moisture off of the front element. A newly developed ring-type ultrasonic motor promises smooth and responsive movement of this lens's heavy elements. The lens also has a nine-blade rounded aperture (electronically controlled), a minimum focus distance of 40cm / 1.3 ft and a magnification of 0.18x.