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Pentax 20mm F/2.8 SMC A K Mount Manual Focus Lens {67}

Pentax Cameras
KEH Model# 241982

This product is currently out of stock. Please contact a KEH photography expert to discuss similar options.

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Pentax 20mm F/2.8 SMC A K Mount Manual Focus Lens {67} Description


Minimum Aperture: 22 Lens Construction: 9 groups 10 elements Angle of View: 94ø Diaphragm: Fully automatic Minimum Focusing Distance: 0.25m (0.8 ft.) Filter Size: 67mm Lens Hood: MH-RE67 Lens Case: HD-100

The Pentax smc P-A 20mm F2.8 is a manual focus lens with automatic aperture control. It provides a very wide angle of coverage and is well-suited for architectural and landscape photography. Weighing a mere 8.6 ounces, its compact and lightweight design also make it ideal for traveling. Like all Pentax lenses, this lens is treated with the acclaimed smc coating for maximum light transmission, sharp definition, and high contrast while minimizing flare and ghost imaging.

KEH Specifications

  • Focal Length: 20mm
  • Aperture Maximum:   f/2.8
  • Aperture Minimum: f/22
  • Camera Mount Type: Pentax K Bayonet
  • Format Compatibility: 35mm
  • Minimum Focus Distance: 9.84 inches
  • Elements/Groups: 10/9
  • Diaphragm Blades: 5
  • Tripod Collar: No
  • Filter Thread: 67mm
  • Dimensions: 2.75 x 1.71 inches
  • Weight: 8.64 oz (245g) 


General information

Manufacturer Part Number 22875
Manufacture GTIN 027075033344
Brand Name Pentax
Product information
Product Series
Lens Construction
10 Elements in 9 Groups
Product Line

Pentax 35mm SLR Cameras

Maximum Aperture Fixed
  • Camera
Lens Type
  • Wide Angle
Lens Type Wide-angle

Technical Information

Fixed Focal Length 20 mm
Max Aperture f/2.8

Physical Characteristics

Lens Mount Pentax KA (SMC-A)