Sigma 400mm F5.6 APO HSM
Launched September 1994
Sigma 400mm F5.6
World first Apochromatic Ultra telephoto lens with macro capability of 1:3 reproduction ratio. The lens has a great advantage to take macro photography of moving subjects which needs longer working distance. Incorporating inner focusing of 2nd and 4th lens group with two Special Low Dispersion glasses, the lens produce high optical performance for the subject from infinity to macro focus range.
The lens has a matte “ZEN” finish like other Sigma lenses. This new lens will be available in AF and MF mounts for major S.L.R. cameras from December 12th, 1994.
| 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 | 1,645g |
| SRP at launch: | £2,500 |
| Available Mounts: | AF: Canon, Sigma, Nikon, Pentax, Minolta
MF: Nikon, Canon, Minolta, Pentax, Olympus, Ricoh, Contax, Yashica |