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

MFR Part #: 26350
Samy's Part #: S-008482
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The Pentax-D FA 645 55mm f/2.8 AL [IF] SDM AW Lens is the first model of the Pentax-D FA 645 lens series created for the Pentax 645D digital medium-format camera. With a focal length that's equivalent to a 43.5mm standard lens (in 35mm), it features optics optimized for digital photography to assure exceptional performance, and also provides an image circle covering the image area of existing 645-format film SLR cameras. It has dependable, dust-proof, weather-resistant construction for active outdoor photography.

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).

  • 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.

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Lens Information
Lens Mount Pentax 645
Focal Length 55mm
Aperture Range f/3.5-5.6
Minimum Focusing Distance 1.64' (0.5m)
Filter Size 67mm
Diagonal Angle Of View 53-65°
Length 2.7 (68.2mm)
Maximum Diameter 3.2 (81.3mm)
Lens Format Medium Format
Weight 16.3 oz. (463g)
  • Lens Hood PH-RBC 62mm
  • Lens Cap O-LC62 62mm
  • Rear Lens Cap B
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