Sigma 28mm F1.8 LW
Launched 1994
Sigma New 28mm F1.8 Aspherical LW
The new Sigma 28mm F/1.8 wide angle features high speed with compact and light weight design. The lens incorporates floating focus in combination of the total lens elements focusing and the internal focusing with 2 aspherical lens elements, which produce outstanding optical performance.
An effective “Perfect Lens Hood” will be supplied as the standard accessory. The lens has matte “ZEN” finish like other Sigma lenses. This new lens will be available in AF and MF mounts for most major SLR cameras from November 21st 1994 on.
| Specifications | |
| Construction | 9 Elements in 8 Groups |
| Focal Length | 28mm |
| Maximum Aperture | ƒ1.8 |
| Minimum Aperture | ƒ16 |
| Field of View | 75° |
| Minimum Focus Distance | 30cm |
| Number of blades | 7 |
| Maximum Magnification | N/A |
| Zooming System | N/A |
| Filter Size | 58mm |
| Diameter | 56.8mm (max.) |
| Length | 69.5mm |
| Weight | 350g |
| SRP at launch: | N/A |
| Available Mounts: | Canon, Nikon, Pentax, Minolta, Sigma |