Sigma 400mm F5.6 APO HSM
Launched September 1996

400mm f5.6 HSM White 1996
400mm f5.6 HSM Black 1996

Sigma 400mm F5.6 APO HSM

The Sigma APO Tele Macro 400mm F5.6 HSM lens is one of the new series of lenses to be introduced at Photokina 1996 by Sigma Corporation of Japan. It is the world’s first apochromatic ultra telephoto lens with macro capability of 1:3 reproduction ratio. It incorporates a Hyper Sonic Motor enabling fast, highly responsive auto focusing, manual focusing without using the switch as well as manual focus override on an auto focusing.

Specifications
Construction 10 Elements in 7 Groups
Focal Length 400mm
Maximum Aperture ƒ5.6
Minimum Aperture ƒ22
Field of View 6.2°
Minimum Focus Distance 160cm
Number of blades 9
Maximum Magnification 1:3
Zooming System N/A
Filter Size 77mm
Diameter 92.5mm (max.)
Length 257.2mm
Weight 2,400g
SRP at launch: £3,500
Available Mounts: Sigma AF, Canon AF