Sigma announces stabilised 120-300mm F2.8 telezoom
Photokina 2010: Sigma has unveiled the 120-300mm f/2.8 EX DG OS HSM, a revised version of its fast telezoom featuring optical image stabilization and weather-resistant construction. The lens also offers ultrasonic-type HSM autofocus with full-time manual override, and employs both 'F' Low Dispersion and Super Low Dispersion glass to minimize chromatic aberrations. It employs a 9-bladed rounded diaphragm for attractive bokeh, and is fully compatible with Sigma's 1.4x and 2.0x teleconverters while maintaining autofocus.
Sigma 120-300mm f/2.8 EX DG OS HSM
Large aperture telephoto zoom OS and weather resistant construction
- Large aperture telephoto zoom lens
- Sigma’s proprietary Optical Stabilisation system
- Weather resistant sealing connectors
- Equipped with HSM ensuring quiet and high speed AF
- Rounded 9 blade diaphragm creates an attractive blur
The Sigma Corporation is pleased to announce the new Sigma APO 120-300mm F2.8 EX DG OS HSM, which offers improved optical performance. This large aperture zoom lens features Sigma’s OS (Optical Stabilizer) function and weather-resistant design throughout for use in harsh conditions.
One SLD and Two FLD glass elements are used for maximum correction of chromatic aberrations. The Super Multi-Layer lens coating reduces flare and ghosting and the lens design incorporates an inner focusing and inner zooming system to ensure sharp images throughout the entire zoom range.
Improved optical performances provides excellent correction of sagittal coma flare and ensures ultra-high resolution, comparable to a fixed focal length lens.
The OS function offers the use of shutter speeds approximately 4 stops slower than would otherwise be possible and enables hand held tele-photography.
Incorporation of HSM (Hyper Sonic Motor) ensures quiet and high speed AF, while allowing full-time manual focus override. The rounded 9 blade diaphragm creates an attractive blur to the out of focus areas of the image.
The addition of the optional APO 1.4x EX DG and 2x EX DG Tele Converters produces an ultra telephoto zoom lens with AF.
|Price|| US: $TBA
|Maximum format size||35mm full frame|
|35mm equivalent focal length (APS-C)||• 180-450mm (1.5x)
• 190-480mm (1.6x)
|Diagonal Angle of view (FF)||20.4º - 8.2º|
|Lens Construction||• 23 elements / 18 groups
• 2 FLD elements
• 1 SLD element
|Number of diaphragm blades||9, rounded|
|Minimum focus||1.5 - 2.5m|
|Maximum magnification||0.13x at 300mm|
|AF motor type||• Ring-type Ultrasonic Motor
• Full-time manual focus
|Image stabilization||• 4 stops claimed|
|Filter thread||• 105mm|
|Dimensions||114.4 mm diameter x 289.2 mm length
(4.5 x 11.4 in)
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