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Category:Sigma
Category:Objectifs
Category:Reflex -> Objectif
Category:Tests

Sigma APO 70 200mm F2.8 II EX DG MACRO et APO 50-150mm F2.8 II EX DC HSM

31 janvier 2008 par Pascale Dechamps, mise à jour 18 juillet 2008

Sigma annonce deux objectifs zooms télés, l'APO 70 200mm F2.8 II EX DG MACRO et l'APO 50-150mm F2.8 II EX DC HSM pour les réflexes numériques Pentax et Sony. Les deux objectifs sont de construction apochomatique (réduction des aberrations chromatiques) et sont équipés d'un moteur supersonique.

Tests

Mise à jour 18 juillet 2008 : Dpreview vient de publier son test (en anglais).
Au rang de ses qualités, Dpreview note son excellente fabrication, son prix bas, la rapidité de l'auto-focus, peu de vignettage et une qualité correcte d'image. Par contre, l'objectif n'a pas convaincu en macro et en 200mm, avec entre autre dans ce cas des aberrations chromatiques.

Communiqué de presse

Announcement of two new lenses for Pentax* and Sony* fittings

The Sigma Corporation is pleased to announce the launch of the APO 70-200mm F2.8 II EX DG MACRO HSM large aperture telephoto zoom lens with a large aperture as well as APO 50-150mm F2.8 II EX DC HSM Compact, lightweight, large aperture telephoto zoom lens for Pentax and Sony fittings.

APO 70-200mm F2.8 II EX DG MACRO for Pentax and Sony

Large aperture zoom lens with advanced optical performance

This large aperture zoom lens has improved optical performance and retains close-up ability with a minimum focusing distance of 100cm/39.4in. SLD （Special Low Dispersion） and ELD (Extraordinary Low Dispersion) glass elements provide excellent correction for all types of aberrations. High image quality is assured throughout the entire zoom range. The super multi-layer coating reduces flare and ghosting. The lens design incorporates an inner focusing and inner zooming systems. The overall length of the lens does not change during focusing and zooming, ensuring convenient handling. It is possible to attach optional Sigma APO teleconverters.

APO 50-150mm F2.8 II EX DC HSM for Pentax and Sony

Compact, lightweight, large aperture telephoto zoom lens

This F2.8 large aperture telephoto zoom lens is designed exclusively for digital SLR cameras with APS-C size sensors and its compact, lightweight body provides freedom of movement and versatility. The super multi-layer lens coating reduce flare and ghosting and ensure sharp images throughout the entire zoom range. The addition of the optional 1.4x EX DG APO or 2x EX DG APO Tele Converters produce a 70-210mm F4 AF tele-zoom lens and a 100-300mm F5.6 AF ultra-telephoto zoom lens respectively.

*If the camera body does not support HSM motor, AF does not work.