Sigma 18-50mm F3.5-5.6 DC
Four-Thirds Fitting
Launched March 2004
18-50mm F3.5-5.6 DC
Compact-Lightweight zoom lens for the “Four Thirds System (4/3 System)” Digital SLR
Sigma Corporation is pleased to announce the launch of the new 18-50mm F3.5-5.6 DC for the Four Thirds Digital SLR Camera System. This lens has already been well accepted as a high quality optic by users of Sigma, Canon, Nikon-D, Fuji and Pentax digital SLRs. This zoom lens was exclusively designed to suit the characteristics of digital SLR cameras with APS-C type sensors. The image circle was designed to match the size of the image sensors of digital SLR cameras, resulting in a compact and lightweight construction. The use of aspherical lenses provides correction for various aberrations throughout the entire zoom range and produces high level of optical performance. 18-50mm F3.5-5.6 DC lens has a minimum focusing distance of 25cm (9.8”) at all focal lengths and is capable of macro photography with a maximum magnification ratio of 1:3.5.
It is expected that Sigma will introduce the Four Thirds fitting to an ever – expanding range of their lenses in the future.
* If Olympus E-1 digital cameras is used, the angle of view will be equal to 36-100mm focal length.
| Specifications | |
| Construction | 8 Elements in 8 Groups |
| Focal Length (4/3 Equivalent) | 36-100mm |
| Maximum Aperture | ƒ3.5-5.6 |
| Minimum Aperture | ƒ22 |
| Field of View | 62-24.4° |
| Minimum Focus Distance | 25cm |
| Number of blades | 7 |
| Maximum Magnification | 1:3.5 |
| Zooming System | Clockwise |
| Filter Size | 58mm |
| Diameter | 67.5mm |
| Length | 62mm |
| Weight | 250g |
| SRP at launch: | £99.99 |
| Available Mounts: | Four-Thirds |