ZITAT(matthiaspaul @ 2008-09-29, 12:50) Laut aktuellem Sigma-Prospekt (2008.06) sollen übrigens die folgenden Objektive auch mit "Sony"-A-Bajonett über einen HSM-Antrieb verfügen:
Sigma Apo 2,8/70-200mm EX DG Macro HSM II (UPC 0085126579623)Sigma Apo 4,5-5,6/120-400mm EX DG HSM (ohne eingebauten OS-Bildstabilisator) (UPC 0085126728625)Sigma Apo 5-6,3/150-500mm EX DG HSM (ohne eingebauten OS-Bildstabilisator) (UPC 0085126737627)Sigma 1,4/50mm EX DG HSM (UPC 0085126310622)Sigma 3,8-5,6/18-125mm DC HSM (ohne eingebauten OS-Bildstabilisator, nur APS-C-Format) (UPC 0085126853624)Sigma Apo 2,8/50-150mm EX DC HSM II (ohne eingebauten OS-Bildstabilisator, nur APS-C-Format) (UPC 0085126691622)[/quote]
Sigma hat auf der photokina übrigens noch fünf neue Objektive mit A-Bajonett angekündigt:
Sigma 2,8/24-70mm EX DG HSM Sigma 2,8/4.5mm EX DC Circular Fisheye HSM (nur APS-C-Format)Sigma 2,8/10mm EX DC Fisheye HSM (nur APS-C-Format)Sigma Apo Tele Converter 1.4x EX DG (mit HSM/SSM-Unterstützung)Sigma Apo Tele Converter 2x EX DG (mit HSM/SSM-Unterstützung)
http://www.dpreview.com/news/0809/08092303..._24_70_lens.asp
ZITAT24-70mm F2.8 EX DG HSM
The Sigma Corporation is pleased to announce the new 24-70mm F2.8 EX DG HSM. This large aperture standard zoom lens covers focal lengths from 24mm and is housed in compact construction.
The latest optical design provides an overall length of 94.7cm /3.7inch. It is ideal for general photography such as snapshots, portraiture and landscapes. The Super Multi Layer Coating reduces flare and ghosting. ELD (Extraordinary Low Dispersion) glass, two SLD (Special Low Dispersion) glass elements and three aspherical lenses provide excellent correction of all types of aberrations.
Superior optical performance is ensured throughout the entire zoom range. This lens incorporates HSM (Hyper Sonic Motor), ensuring a quiet and high speed AF as well as full time manual focusing capability. This lens has a minimum focusing distance of 38cm/15in and a maximum magnification ratio of 1:5.3.
The rounded 9 blades diaphragm creates an attractive blur. It is possible to attach the included petal-type hood to block out extraneous light.
Features:
Large aperture standard zoom lensELD and SLD glass provides excellent correction of all types of aberrationsSuper Multi Layer Coating reduces flare and ghostingEquipped with HSM ensuring quiet and high speed AFThe rounded 9 blade diaphragm creates an attractive blur[/quote]
http://www.dpreview.com/news/0809/08092302...ments_sigma.asp
ZITATAnnouncement of two new fisheye lenses for Sony and Pentax fittings
The Sigma Corporation is pleased to announce the launch of the 4.5mm F2.8 EX DC CIRCULAR FISHEYE HSM the first Circular Fisheye lens exclusively for use with APS-C size digital SLR cameras and 10mm F2.8 EX DC FISHEYE HSM diagonal fisheye lens exclusively for use with APS-C size digital SLR cameras for Sony and Pentax fitting cameras.
4.5mm F2.8 EX DC CIRCULAR FISHEYE HSM For Sony and Pentax
This autofocus circular fisheye lens has an angle of view of 180 degrees in all directions. It is exclusively designed for digital SLR cameras with the APS-C size image sensor. When used in conjunction with digital SLRs with APS-C size image sensor, it produces circular image within the frame. The minimum focusing distance of 13.5cm/5.3inch and maximum magnification of 1:6 make it particularly useful for close-up photography. SLD (Special Low Dispersion) glass, Super Multi Layer Coating and inner focusing system provide superior image quality. HSM ensures fast and quiet auto focusing and includes full-time manual focus
10mm F2.8 EX DC FISHEYE HSM For Sony and Pentax
This diagonal fisheye lens is designed for use with digital SLR cameras equipped with an APS-C size image sensor. It produces a diagonal angle of view of 180 degrees. The diagonal field of view of this fisheye lens produces striking images with exaggerated perspective and distortion. This lens has a minimum focusing distance of 13.5cm/5.3inch, and maximum magnification 1:3.3. It allows subjects to be as close as 1.8cm/0.7inch from the lens’ front element. The exclusively designed integral hood and the Super Multi-Layer Coating minimize flare and ghosting and create superior image quality.[/quote]
http://www.dpreview.com/news/0809/08092302...ments_sigma.asp
ZITATNew dedicated tele converter for Sony mount telephoto lenses that support HSM
The Sigma Corporation is pleased to announce the new APO TELE CONVERTER 1.4x EX DG and APO TELE CONVERTER 2x EX DG for Sony mount. The new tele converters are capable of maintaining the HSM function of such telephoto lenses as Sigma’s APO 70-200mm F2.8 II EX DG MACRO HSM and APO 50-150mm F2.8 II EX DC HSM whilst increasing the focal length by a factor of 1.4x or 2x.
Of course, the HSM (Hyper Sonic Motor) AF compatibility depends on the capability of the Sony SLR camera to support this function and on the maximum F number of the attached lens. The Super Multi Layer Coating reduces flare and ghosting and the exclusive design maintains the master lens’ high level performance while extending its focal length. Compact and lightweight, these tele converters are a convenient way of increasing the focal length of HSM telephoto lenses.[/quote]
Viele Grüße,
Matthias