Photography Resources

Wednesday, October 13, 2010

Sigma announces stabilised 120-300 mm F2.8 telezoom

Photokina 2010: has unveiled a Sigma 120-300 mm 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 continuous manual and function as ' F ' low dispersion and super low dispersion lens to minimize chromatic aberration. It uses nine-blade rounded diaphragm for attractive bokeh and fully compatible with 1 x and 2.4.0 x teleconverters Sigma while autofocus.

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Press release:


Large aperture telephoto zoom OS and weather-resistant construction Large aperture telephoto zoom lens Sigma property optical stabilization system, Weather resistant sealing connectors equipped with HSM, quiet and high-speed AF 9-blade rounded diaphragm creates attractive blur

The Sigma Corporation is pleased to announce the new Sigma APO 120-300 mm F2.8 EX DG OS HSM that offers improved optical performance is a large aperture zoom lens features a Sigma in operating system features (optical stabilizer), and weather-resistant design is designed for the toughest.

One and two FLD SLD glass elements are used to maximum correction of chromatic aberration Super multi-layer lens coating. reduces flare and ghosting and lens construction consists of an inner focusing and inner zooming system to ensure sharp images throughout the entire zoom range.

Improved optical properties provides excellent correction of sagittal coma flare and ultra-high resolution comparable to fixed focal length.

Features OS offers using shutter speeds of approximately 4 stops slower than would otherwise be possible and enables tele.ring miniature photos.

Incorporation of HSM (Hyper Sonic motor) ensures a safe and high speed, AF, allowing full manual focus override. rounded diaphragm creates attractive 9 blade blur the image areas.

Add an additional 1. APO EX DG 4 x and 2 x EX DG body of code produces ultra telephoto zoom lens with A.F.

35 mm equivalent focal length (APS-C) 180-450 mm (1.5 x)
• 190-480 mm (1.6 x) elements lens Construction • 23/18 groups
• 2 FLD element
• 1 SLD elementAF Motor type • ring type ultrasonic motor
• Continuous manual focus Dimensions114.4 mm diameter x Length 289.2 mm
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