Sigma 28-70mm F2.8-4 High Speed Zoom
Launched October 2002
28-70mm F2.8-4 High Speed Zoom
Sigma 28-70mm F2.8-4 High Speed Zoom is one of several new products to be introduced at Photokina 2002 by Sigma Corporation of Japan (2-3-15, Iwado-Minami, Komae-shi, Tokyo, Japan).
Sigma 28-70mm F2.8-4 HIGH SPEED ZOOM standard zoom lens features a large aperture, light weight and compact dimensions.
At 28mm focal length this lens has a fast F2.8 maximum aperture. The tiny weight of 245g/8.6oz and length of 6cm/2.4in makes this very compact optic. This size and weight of this standard lens makes it very suitable for travel and general photography. This lens has a minimum focus distance of 50cm/19.7in at all focal lengths. It incorporates an aspherical lens element to minimize distortion. The lens materials used in this new lens are lead and arsenic free ecological glass.
| Specifications | |
| Construction | 11 Elements in 8 Groups |
| Focal Length (4/3 Equivalent) | 28-70mm |
| Maximum Aperture | ƒ2.8-4 |
| Minimum Aperture | ƒ22 |
| Field of View | 75.4-34.3° |
| Minimum Focus Distance | 50cm |
| Number of blades | 8 |
| Maximum Magnification | 1:8.5 |
| Zooming System | Clockwise |
| Filter Size | 58mm |
| Diameter | 67.5mm |
| Length | 62.5mm |
| Weight | 245g |
| SRP at launch: | £99.99 |
| Available Mounts: | Sigma SA, Minolta, Nikon, Pentax, Canon |
