CP+ 2011: Pentax has announced the smc D FA 645 25mm F4 AL [IF] SDM AW ultra-wide lens for the 645D medium format digital camera. The second lens designed for the camera, following the DFA 55mm 645 SDM lens kit lens, the 25mm weather-resistant lens offers a field of view equivalent to a 19.5mm lens on a 35mm system. Priced at $4999.95, it will be available from April 2011.

Press Release:

PENTAX ADDS SECOND LENS FOR 645D MEDIUM FORMAT: smc PENTAX D FA 645 25mm F4 AL [IF] SDM AW

GOLDEN, CO (February 7, 2011) : PENTAX Imaging Company 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.