Sigma 70-210mm f3.5-4.5 APO (Auto Focus)
Launched 1986
From the Press Release dated 10th February 1986 – for the MF version:
“The world’s shortest Apochromatic High-Speed Telephoto lens. One-Touch zoom, Helical focusing, which has an advantage for using polarizing filter. The lens will supply together with Achromatic Macro Lens for High Quality close-up photography.”
The AF version appears to have been released for Minolta AF and weighed slightly more, as well as costing a little extra.
| Specifications | |
| Lens Construction | 11 Elements in 8 Groups |
| Focal Length | 70-210mm |
| Maximum Aperture | Æ’3.5-4.5 |
| Minimum Aperture | f/22 (Æ’32 at 210mm) |
| Field of View | 34-12° |
| Minimum Focus Distance | 1.5m |
| Filter Size | 52mm |
| Diameter | 66.5mm |
| Length | 107.5mm |
| Weight | 695g |
| SRP at launch: | £250 |
| Available Mounts: | Minolta AF |