Pentax 55mm F/2.8: Picture 1 thumbnail Pentax 55mm F/2.8: Picture 2 thumbnail Pentax 55mm F/2.8: Picture 3 thumbnail Pentax 55mm F/2.8: Picture 4 thumbnail Pentax 55mm F/2.8: Picture 5 thumbnail

Pentax 645D FA 55mm F2.8 AL [IF] SDM AW Lens

SKU: IPX64555 MFR: 26350

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Pentax 55mm F/2.8: Picture 1 regular $1,054.99

About Pentax 55mm F/2.8

This Pentax 55mm F/2.8 Bundle comes with $49.95 worth of free accessories including a New Leaf PLUS 3yr Lens Warranty and Shipping is free!

Developed as the first model of the PENTAX-D FA 645 lens series, the Pentax smc D FA 645 55mm f/2.8 AL [IF] SDM AW not only features optics optimized for high-quality digital photography to assure exceptional image-description performance, but also provides an image circle covering the image area of existing 645-format film SLR cameras.

This unifocal standard lens also comes with a dependable, dust-proof, weather-resistant construction for active outdoor photography.

Pentax 55mm F/2.8 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

Pentax 55mm F/2.8 Specifications

Lens Mount
Focal Length
55mm (equiv 34-43.5mm in 35mm format)
Min. Aperture
Max. Aperture
Lens Construction
9 elements in 7 groups
Angle of View
53-65 degree
Min. Focusing Distance
1.64' (0.5m)
Max. Magnification
Filter Diameter
Diaphragm Control
Fully Automatic
Number of Aperture Blades
PH-RBN 67mm
Objective Cap
O-LC62 62mm
Maximum Diameter & Minimum Length
81.3mm x 68.2mm (3.2 inch x 2.7 inch)
Without Hood: 14.7 oz. (416g)
With Hood: 16.3 oz. (463g)
Mfr #

Questions & Answers Powered by TurnTo®

Questions about this item:

Medi A  Hi is this camera is digital & is new ?
Helen O  It is brand new.
Debra Y  Do the lenses from 645 fit this camera?
Andrew R  This product listing is for the lens only and does not include a camera body. This lens uses the PENTAX 645 AF2 bayonet mount and can be used on older PENTAX film 645 bodies.
Jay A  What is the 35mm equivalent of this lens?
Andrew R  I'm not sure I understand your question. This lens is designed to fit the Pentax 645D medium format digital camera. If used with 120 roll film at 6x4.5cm (645) I would guess that the rough equivalent would be close to a 35mm lens on a 35mm film camera.
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