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smc Pentax 645 D-FA 55mm f/2.8 AL (IF) SDM lens

Main info

  • 55 mm ultra wide angle prime lens
  • Fast - f/2.8 maximum aperture
  • 35 mm equivalent of 43.5 mm
  • Integrated SDM focusing motor
  • For Pentax 645 medium format cameras

Product has been archived

  • Designed for both PENTAX film and digital 645 cameras
  • Dustproof and Weather sealed (AW)
  • Super Direct-drive Motor (SDM)
  • Quick-Shift system
  • Aero-Bright and SP coatings

State-of-the-art optics
Incorporating high-performance, hybrid aspherical optical element in its optics, this new standard lens offers exceptional image-resolving power with outstanding brightness levels even at the edges, while compensating various aberrations to a minimum. All lens characteristics are optimized for digital photography: for instance, flare and ghost images are minimized by applying exclusive lens coatings to optical elements and employing anti-reflection materials for the interior of the lens barrel. As the result, this lens can bring out the full potential of the PENTAX 645D medium-format digital SLR camera.

Versatile standard lens
When mounted on the PENTAX 645D camera body, this standard lens offers a focal length of 43.5mm (in the 35mm format), which produces an angle of view close to that of the human eye. As the result, it can be used for many different kinds of subjects and applications, including landscapes and portraits.

Dependable dustproof, weather-resistant construction
Using seven special seals, the lens’ dustproof, weather-resistant construction effectively prevents the intrusion of dust and water to the lens interior. By coupling this lens with the PENTAX 645D camera body, the user is assured of a durable, reliable digital SLR camera system that performs superbly in outdoor settings, even in rain or mist or at locations prone to water splashes or spray.
PENTAX plans to use the “AW” (All Weather) designation in the product name of all dustproof, weather-resistant medium-format interchangeable lenses to be marketed in the future.

Aero Bright coating to dramatically improve image description in backlight
The lens is treated with PENTAX-original Aero Bright coating, which delivers brilliant, high-quality images by preventing annoying flare and ghost images more effectively than ever before. Born as the fruit of PENTAX’s advanced nanotechnology, this exclusive coating effectively reduces lens reflectance and greatly increases light transmittance by forming a silica aerogel layer with uniform pores on the surface of optical element.

Technical data

Format compatibility
Pentax 645 series DSLRs
Lens mount
PENTAX 645 AF2
Zoom / fix
Prime lens
Lens type
Normal
Focal length
55 mm
Focal length (35mm camera equivalent)
43.5 mm
Maximum aperture
f/2.8
Minimum aperture
f/22
Optical construction
9 elements in 7 groups
Focusing
Autofocus
Manual focus
AF motor
SDM (Supersonic Drive Motor) motor
Full mechanical manual focus override
Yes
Image stabiliser
None
Minimum focus distance
50 cm
No. of diaphragm blades
9
Maximum reproduction ratio
0.17×

General

Diameter
62.8 mm
Length
81.3 mm
Weight
416 g
Filter thread
67 mm
Weather sealing
Yes
Weather- and dustproof
Package contents
Lens
Front lens cap
Rear lens cap
Lens hood

Product codes

EAN
0027075166059
Manufacturer code
26350

Manufacturer

Manufacturer
Ricoh Imaging Company, Ltd., Maeno-cho 1-10-10, Tokyo, 174-8580, JP, www.ricoh-imaging.co.jp
Responsible person in the EU
Pentax Europe GmbH, Julius-Vosseler-Straße 104, Hamburg, 22527, DE

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