Sigma 180mm F2.8 APO Macro AF
Launched February 1990
SIGMA 180mm F2.8 APO Macro for Minolta AF and Nikon AF cameras
This lens is the worlds first Apochromatic telephoto lens with macro capability. Since it incorporates internal focusing with double floating lens elements, this lens has a flat focal plane and a high and high optical performance from infinity to 1:2 macro photography.
| Specifications | |
| Construction | 13 Elements in 11 Groups |
| Focal Length | 180mm |
| Maximum Aperture | ƒ2.8 |
| Minimum Aperture | ƒ22 |
| Field of View | 13.7° |
| Minimum Focus Distance | 64cm |
| Number of blades | N/A |
| Maximum Magnification | 1:2 |
| Zooming System | N/A |
| Filter Size | 82mm Rear |
| Diameter | 89mm (max.) |
| Length | 176mm |
| Weight | 1,650g |
| SRP at launch: | N/A |
| Available Mounts: | Nikon AF, Minolta AF |