Pentax have announced the addition of a second lens for the 645D Medium Format digital camera. As the second model of the 645D lens series, the smc Pentax D FA 645 25mm F4 AL [IF] SDM AW is designed as an ultra-wide-angle lens that features Pentax-original optics optimized for high-quality digital photography to assure exceptional image- performance as well as dependable dustproof, weather-resistant construction for active outdoor photographers.

Offering a focal length of approximately 19.5mm in the 35mm format (or approximately 15.5mm when mounted on a Pentax 645-format film SLR camera body), this new lens provides the widest perspective of all Pentax 645 lenses. Creating visual effects unique to ultra-wide-angle lenses — such as exaggerated perspective and enhanced depth of field — this lens may be used for a wide range of subjects including spectacular landscapes and indoor shooting in confined spaces.

Priced at $4999.95 USD, the smc Pentax D FA 645 25mm F4 AL [IF] SDM AW lens will become available in April 2011.