EF Lenses


EF400mm f/5.6L USM

  • Specifications
  • Block diagram
  • Sample Image
Marketed May 1993
Original Price 185,000 yen (w/case)
Lens Construction (group) 6
Lens Construction (element) 7
No. of Diaphragm Blades 8
Minimum Aperture 32
Closest Focusing Distance (m) 3.5
Maximum Magnification (x) 0.11
Filter Diameter (mm) 77
Maximum Diameter x Length (mm) 90 x 256.5
Weight (g) 1,250

A compact and lightweight 400mm super telephoto AF lens driven by a ring USM (Ultrasonic Motor). The optical system incorporates one Super UD (Ultra-low Dispersion) glass lens element (2nd) with an optical effect similar to fluorite, and one UD glass element(5th), comprehensively eliminating the secondary spectrum and realizing extremely sharp, high-contrast imaging performance at almost same level as EF400mm f/2.8L USM. Other professional features are: a built-in lens hood with locking mechanism, dual manual focusing rings, a removable ring-type tripod mount, full-time manual focusing, and focus range selector for 3.5m to infinity or 8.5m to infinity. Extenders EF1.4X and EF2X can be used with manual focusing.

Block diagram

Super UD Lens  UD Lenses

Photograph sample