Sigma 50-500mm F4-6.3 EX DG/HSM 4/3
Launched February 2006
50-500mm F4-6.3 EX DG/HSM for Four Thirds fitting
- Most effective coating for minimizing flare and ghost with digital SLR cameras.
- Triple-cam Rear Focusing System ensures high precision throughout the whole focus range.
- Uses four SLD (the special low dispersion) glass elements for superior optical performance.
- Accepts both 1.4X and 2X APO EX Tele-Converters, the lens can be used as a 1000mm ultra-telephoto zoom lens.
The Sigma Corporation is pleased to announce the new 50-500mm F4-6.3 EX DG HSM for the Four Thirds fitting.
This high zoom ratio lens is optimised for digital SLR cameras and capable of covering a wide range of focal lengths from 50mm standard to 500mm ultra telephoto. When used on a Four Thirds camera, the effective focal length will be 100-1000mm. This ultra-zoom lens employs a seven-group zoom system, which provides a high zoom magnification of 10x. Triple-cam Rear Focusing System ensures high precision throughout the whole focus range.
The new lens coating reduces flare and ghosting, is a common problem of digital cameras, and also creates an optimum colour balance.
This lens uses four pieces of SLD (the special low dispersion) glass for excellent correction of color aberration.
A zoom lock switch eliminates ‘zoom creep’ during transportation, a convenient addition when traveling.
The rear focus mechanism produces a non-rotating front lens element which accepts a bayonet petal shaped hood, included, which prevents extraneous light from degrading the image quality.
| Specifications | |
| Construction | 20 Elements in 16 Groups |
| Focal Length | 50-500(100-1000)mm |
| Maximum Aperture | ƒ4-6.3 |
| Minimum Aperture | ƒ22 |
| Field of View | 23.4-2.5° |
| Minimum Focus Distance | 100-300cm |
| Number of blades | 9 |
| Maximum Magnification | 1:5.2 |
| Zooming System | N/A |
| Filter Size | 86mm |
| Diameter | 95mm |
| Length | 218.5mm |
| Weight | 1842g |
| SRP at launch: | £899 |
| Available Mounts: | Four-Thirds |