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13928 Pentax smc FA 645 45-85mm f/4.5 Lens 1038 Medium Format Lenses PENTAX

Pentax smc FA 645 45-85mm f/4.5 Lens (123806)

$2,956.30 2956.30 Save 15%
WAS: $3,478.00
Product Overview
  • Pentax 645 Mount

  • 35.5-67mm (35mm Equivalent)

  • Aperture Range: f/4.5-32

  • Construction: 11 Elements / 9 Groups

  • Minimum Focus Distance: 0.5m

  • Fast AF/MF Switching

  • Eight Blade Diaphragm

  • Front Filter Thread: 77mm

  • Petal-Shaped Lens Hood


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The Pentax smc FA 645 45-85mm f/4.5 Lens is a standard zoom lens capable of wide angle to short telephoto focal lengths equivalent to 35.5-67mm in 35mm format. The maximum f/4.5 aperture is constant throughout the zoom range, and it can stop down to a minimum of f/32. This is due in part to a lens construction of 11 elements in 9 groups.

During use, you can switch between auto and manual focus by simply sliding the focus ring forward or backward. It can even focus down to a minimum of 0.5 m away. Further benefiting image quality is an eight blade diaphragm that will ensure smooth out-of-focus areas. It also comes with a case and has a 77mm front filter thread.

  • 35mm focal length equivalent of 35.5-67mm
  • Aperture range of f/4.5 to f/32
  • Angle of view of 76° to 44.5° which equates to 61.5° to 36° on Pentax 645 digital cameras
  • Lens construction of 11 elements in 9 groups
  • Accepts 77mm threaded filters
  • Minimum focusing distance throughout the zoom range is 0.5m
  • Works with both film and digital formats
  • Aperture ring and focusing distance scale
  • Eight diaphragm blades for smooth out-of-focus areas


  • MPN - 26725
  • GTIN - 027075042551


Optical Design: 11 Elements in 9 Groups
Autofocus: Yes
Magnification: 0.22x
Distance Scale: Yes
Focal Length: 45 - 85 mm
Aperture Range: Maximum: f/4.5
Minimum: f/32
Camera Mount: Pentax 645
Minimum Focusing Distance: 1.64’ (.5 m)
Angle Of View: 76° to 44.5° @ Infinity
Groups: 9
Diaphragm Blades: 8
Filter Size: Front: 77 mm
Tripod Collar: No
Elements: 11
Dimensions (DxL): Approx. 3.35 x 3.92“ (85 x 99.5 mm)
Weight: 815

Pentax smc FA 645 45-85mm f/4.5 Lens

  • Front Lens Cap

  • Rear Lens Cap

  • Case

  • Limited 1-Year Warranty


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