Large aperture ultra-telephoto zoom lens gives an equivalent field of view to 1600mm for the Four Thirds system.

By continuously varying the angle of view, the lens takes a lot of the footwork out of picture composition. The very latest lens coating technology and lens design reduce flare and ghosting, a common problem with digital cameras. Two ELD glass elements in the front lens group reduce chromatic aberration to a minimum and also ensure high optimum image quality. The overall length of the lens does not change during focusing and zooming, ensuring convenient handling.

The HSM provides ultra quiet, high-speed autofocusing as well as full-time manual focus override. This lens is designed to accept a 46mm circular polarizing filter in a rear filter holder.

*With Four Thirds cameras the focal length will be equivalent to 600-1600mm.

Sigma APO 300-800mm F5.6 EX DG HSM lens Specifications

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A Compact telephoto zoom lens for Four Thirds system.

The very latest lens coating technology and lens design reduce flare and ghosting, a common problem with digital cameras. This lens uses one aspherical lens and three Special Low Dispersion (SLD) glass elements for excellent correction of various aberrations. The rear focusing system ensures fast focusing speed as well as preventing the front of the lens rotating, making it particularly suitable for use with circular polarizing filters. A removable tripod collar is included as a standard component.

*With Four Thirds cameras, the focal length will be equivalent to 270-800mm.

Sigma APO 135-400mm F4.5-5.6 DG Lens Specifications

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Equipped with Sigma’s own unique technology OS (Optical Stabilizer) function.
Two SLD (Special Low Dispersion) glass elements and two aspherical lenses provide excellent correction for all types of optical aberrations.
The Sigma Corporation is please to announce the new 18-200mm F3.5-6.3 DC OS lens.

This high zoom ratio lens is exclusively designed for digital SLR cameras and is capable of covering a wide range of focal lengths from wide angle to telephoto. It is equipped with Sigma’s own unique technology OS (Optical Stabilizer) function. This function uses two sensors inside the lens to detect vertical and horizontal movement of the camera and works by moving an optical image stabilizing lens group, to effectively compensate for camera shake. It automatically detects movement of the camera and compensates for camera shake when shooting moving subject such as motor sports.

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The Sigma 24mm F1.8 EX DG Aspherical Macro features large aperture F1.8 wide-angle lens has a minimum focusing distance of 18cm (7.1″) and a maximum magnification of 1:2.7, Minimum Aperture F22, Two aspherical lenses ensure the utmost correction of distortion and aberrations.

>> REVIEWS

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Sigma are now leading the way with third party optics designed for these modern electronic cameras. With this vastly increased quality, along with the number of ‘new’ photographers, we at SigmaUser.co.uk thought it was about time for a dedicated, independent website where users of Sigma’s equipment can exchange views, techniques, ideas and generally share their knowledge and show off their images.

So we have put one together!

It features:

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Sigma 70mm f/2.8 Macro EX DG is a macro lens (released on 10.07.06) ideal for both Digital SLR cameras and 35mm film SLR cameras. The lens is featuring A Special Low Dispersion (SLD) lens and two high refractive index SLD lenses provide excellent correction for all types of aberrations and produce an exceptional level of optical performance, Super multi-layer lens coating reduces flare and ghosting, and floating focus system provides extremely high optical performance from infinity to 1:1 Macro.

The Sigma 70mm f/2.8 Macro EX DG lens will be available in Sigma Autofocus, Canon EF, and Nikon AF mounts from August, and Sony and Pentax mounts from September for around £339.99.

>> PRESS RELEASE

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Having the Sigma AF 180mm f/3.5 EX HSM APO is really advantageous if you like to shoot small animals and insects which can be really difficult as they often run or fly away.

The Sigma AF 180mm f/3.5 EX HSM APO employs an IF (Internal Focusing) system that maintains the overall length of the lens during focusing. Uses two LD (Low Dispersion) glass elements that effectively compensate for chromatic aberration. Provides high-contrast, outstanding image quality and a soft out-of-focus background effect. Incorporates an AF/MF one touch switchover mechanism built into the focus ring(for Canon & Nikon only). Super performance series provides high performance through outstanding design specifications. Features the new FEC (Filter Effect Control) function that enhances operational ease of Polarizing Filter use.

>> REVIEWS (last update: 19.03.06)

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Peter Nikolsky has published a comparison test on Sigma 70-200/2.8 vs. Canon 135/2.8 vs. Tamron 28-75/2.8 vs. Tamron 70-300/4-5.6

Sigma AF 120-300mm f/2.8 EX HSM APO is a telephoto zoom lens with a large aperture (f/2.8), two SLD (the special low dispersion) glass elements in front group and another element of SLD is being used for rear group for excellent correction of chromatic aberration, and a multi layer lens coating and lens design reduce flare and ghost. The lens is also equipped with Hyper sonic motor (HSM) for a silent, responsive and high speed focussing. It mesures Diameter 112.8mm X Length 271mm (4.4 in. X 10.7 in.) and weights 2600g (91.7 oz)

>> REVIEWS (last update: 02.03.06)

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Sigma has launched the new Sigma 50-500mm F4-6.3 EX DG/HSM lens for Four Thirds, a huge 10x zoom lens optimized specially for digital SLR cameras. When the lens is used on a Four Thirds camera, the effective focal length will be 100-1000mm. Sigma 50-500mm F4-6.3 EX DG/HSM featuring 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, and HSM system ensures quiet and high-speed auto focusing

PRESS RELEASE

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