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Pentax 45-85mm F/4.5 SMC FA 2-Touch Lens For Pentax 645 System {77}

Pentax Cameras
KEH Model# 290182
Grade Notes Price Qty
With Caps and Hood
With Caps and Hood
With Caps


Pentax 45-85mm F/4.5 SMC FA 2-Touch Lens For Pentax 645 System {77} Description


The Pentax 45-85mm f/4.5 SMC FA 2-Touch Lens is a standard zoom lens designed for film and digital Pentax 645 mount cameras.

Designed with 11 elements in 5 groups, the Pentax 45-65mm (35.5-67mm equivalent in 35mm) provides sharp images with minimal chromatic aberrations and minimal field curvature often present with wide-angle glass.  Super Multi Coating (SMC) increases light transmission as well as helps to eliminate common ghosting and flaring.  With the ability to quickly switch from autofocus to manual by sliding the focus ring and with a 19.6-inch minimum focus distance, the Pentax 45-85mm is a solid performer when maintaining image quality.

The Pentax 45-85mm offers impressive wide-angle 76-44.5 degrees of view, allowing this lens to also be used for everything from wide-angle landscape to normal focal length portrait photography and it works with both film and digital formats.

Key Features

  • Pentax 645 Mount
  • Autofocus
  • 45-85mm zoom lens (35mm equivalent of 35.5-67mm)
  • Aperture range: f/4.5-32
  • Angle of view: 76° - 44.5°
  • Super Multi Coating
  • Eight diaphragm blades
  • 11 elements in 5 groups
  • 77mm filter thread

Available accessories include: 77mm filters, PH-RBD lens hood, S80-160 Soft Pouch Lens Case, caps.

KEH Specifications

  • Focal Length: 45-85mm
  • Aperture Maximum: f/4.5
  • Aperture Minimum: f/32
  • Camera Mount Type: Mamiya 645 Bayonet
  • Format Compatibility: 4x5cm
  • Minimum Focus Distance: 19.7 inches
  • Autofocus: Yes, with compatible bodies
  • Elements/Groups: 11/9
  • Tripod Collar: No
  • Filter Thread: 77mm
  • Dimensions: 3.35 x 3.91 inches
  • Weight: 30.7 oz (870g)


General information

Manufacturer Part Number 26725
Manufacture GTIN 027075042551
Brand Name Pentax
Product information
Minimum Focus Distance
Lens Construction
11 Elements in 9 Groups
Pentax 645N Film Camera
Maximum Aperture Wide
  • Camera
Filter Attachment Diameter
  • 77 mm
Lens Type Wide to Standard Zoom

Technical Information

Zoom Min Focal Length 45.0000
Zoom Max Focal Length 85.0000
Max Aperture f/4.5

Physical Characteristics

Lens Mount Pentax 645 FA