- 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.
|Focal Length (4/3 Format)
||20 Elements in 16 Groups
|Angle of View (4/3 Format)
|Number of Diaphragm Blades
|Minimum Focusing Distance
||Diameter 95mm (3.7) x Length 218.5mm