Hot D FA 645 55mm f/2.8 AL [IF] SDM AW Lens Wide Angle

This lens features a Supersonic Direct-drive Motor (SDM) autofocus drive and Quick-Shift for instant autofocus/manual focus switching, Aero Bright coating to help prevent flare and ghost images, and it’s Pentax’s first 645 system lens to incorporate a rounded diaphragm for improved bokeh (the aesthetic quality of the blur in the out-of-focus areas of an image).   

FEATURES:

• Fixed 55mm standard-length focal length lens.
• Pentax 645 AF2 bayonet mount can be used on older PENTAX film 645 bodies.
• Advanced optical design, including lens curvature and optical coatings, is optimized for the exacting needs of digital photographic sensors.
• Quiet SDM autofocus motor provides fast and accurate autofocus operation.
• Fully weather-sealed design works with the 645D weather-sealed body for maximum reliability in the field.
• Fast F2.8 maximum aperture allows outstanding depth of field control, while maximizing shutter speeds for existing light photography.
• Curved aperture blades provide a circular aperture at F5.6 for extremely smooth image bokeh.
• Pentax Quick-Shift autofocus system instantly shifts from auto to manual focus for on-the-fly focus accuracy.