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Pentax 400mm F/2.8 SMC A* ED IF K Mount Manual Focus Lens {Drop-In 49}

Pentax Cameras
KEH Model# 242024

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Pentax 400mm F/2.8 SMC A* ED IF K Mount Manual Focus Lens {Drop-In 49} Description


Pentax SMC 400mm f/2.8 ED IF is manual focus ultra telephoto lens with automatic aperture. Ideal for advanced sports, action, and wildlife photographers. Its f/2.8 aperture allows for shooting in low light conditions. The internal focusing technology makes focusing smoother and faster. Extra-low dispersion elements produces high-resolution, high-contrast images. It features a built-in hood and tripod collar. FEATURES INCLUDE: Minimum Aperture: 32 Lens Construction: 8 groups 8 elements Angle of View: 6.2ø Diaphragm: Fully automatic Minimum Focusing Distance: 4.0m (13.1 ft.) Filter Size: 49mm (rear) Lens Hood: Built-in Lens Case: Trunk Case

The Pentax smc P-A 400mm F2.8 ED (IF) telephoto lens is a manual focus lens with automatic aperture. It is ideal for advanced sports, action, and wildlife photographers and features a maximum aperture of 2.8 for shooting in low-light conditions. It also features an internal focus system to make focusing smoother and faster, and incorporates a high-refraction extra low dispersion (ED) glass element to produce high-resolution, high-contrast images.

KEH Specifications

  • Focal Length: 400mm
  • Aperture Maximum: f/2.8
  • Aperture Minimum: f/32
  • Camera Mount Type: Pentax K
  • Format Compatibility: 35mm SLR
  • Angle of View: 4.1° (APS-C) / 6.2° (24x36)
  • Minimum Focus Distance: 4.0m / 13.1ft
  • Elements/Groups: 8/8
  • Diaphragm Blades: 8, Automatic
  • Tripod Collar: Yes
  • Filter Thread: 49mm, drop-in at rear / 145mm front
  • Dimensions: ø6.2 x 12.8
  • Weight: 6000g / 211.64oz


General information

Manufacturer Part Number 24590
Manufacture GTIN 027075002111
Brand Name Pentax
Product information
Product Series
Lens Construction
8 Elements in 8 Groups
Product Line

Pentax 35mm SLR Cameras

Maximum Aperture Fixed
  • Camera
Filter Attachment Diameter
  • 49 mm
Lens Type
  • Telephoto
Lens Type Long / Telephoto

Technical Information

Fixed Focal Length 400 mm
Max Aperture f/2.8

Physical Characteristics

Lens Mount Pentax KA (SMC-A)