Sigma 120-400mm F4-5.6 DG OS HSM
Launched January 2008


120-400mm f/4.5-5.6 DG OS HSM
Telephoto zoom lens incorporating Sigma’s original Optical Stabiliser

  • Incorporates Sigma’s original OS (Optical Stabiliser) system
  • Special Low Dispersion glass elements
  • Inner focusing system
  • HSM (Hyper Sonic Motor) motor and full time manual focus
  • Minimum focusing distance of 150cm at all focal lengths

The Sigma Corporation is pleased to announce the launch of the new APO 120-400mm F4.5-5.6 DG OS HSM.

This telephoto zoom lens incorporates Sigma’s original OS (Optical Stabiliser) system. It offers the equivalent of using a shutter speed approximately 4 stops faster.

Three SLD (Special Low Dispersion) glass elements provide excellent correction for chromatic aberration. This lens is equipped with the rear focus system that minimises fluctuation of aberrations caused by focusing. It provides optimum image quality throughout the entire zoom range. The super multi-layer lens coating reduces flare and ghosting. High image quality is assured throughout the entire zoom range.

The minimum focusing distance of 150cm throughout the entire zoom range and has a maximum magnification of 1:4.2 make it useful for close-up photography. This lens incorporates HSM (Hyper Sonic Motor), which ensures a quiet and high-speed AF as well as full-time manual focus override.

The addition of the optical 1.4x EX DG APO or 2x EX DG APO Tele Converters produce a 168-560mm F6.3-8 MF ultra-telephoto zoom lens or a 240-800mm F9-11 MF ultra-telephoto zoom lens respectively.

Construction 21 Elements in 15 Groups
Focal Length 120-400mm
Maximum Aperture ƒ4-5.6
Minimum Aperture ƒ22
Field of View 20.4-6.2°
Minimum Focus Distance 150cm
Number of blades 9
Maximum Magnification 1:4.2
Zooming System N/A
Filter Size 77mm
Diameter 92.5mm
Length 203.5mm
Weight 1,750g
SRP at launch: TBA
Available Mounts: Sigma AF, Canon AF, Nikon AF