Forum Übersicht - A-Bajonett-Objektive » Neue HSM-kompatible Sigma Telekonverter-Revision

Eine neue, HSM-kompatible Revision der Sigma Telekonverter soll laut Sigma USA verfügbar sein:

http://www.sigmaphoto.com/news/news.asp?nID=3442
ZITAT9/23/2008

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.

New dedicated tele converter for Sony mount telephoto lenses that support HSM

APO TELE CONVERTER 1.4x EX DG for Sony
APO TELE CONVERTER 2x EX DG for Sony

* Dedicated tele converter for telephoto lenses incorporating HSM
* Exclusive design maintains the master lens’ high level performance
* Super Multi Layer Coating reduces flare and ghosting

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.

* If non-HSM lenses are used, focusing can be achieved in manual mode only.
* AF function will not be supported when Sigma’s earlier non HSM Sony fitting tele converters are used.

APO TELE CONVERTER 1.4x EX DG for Sony

APO TELE CONVERTER 1.4x
EX DG for Sony
*Case supplied

Lens Construction

5 Elements in 3 Groups
Focal Length 1.4 times of master lens
Aperture Range F2.8 - 32
Magnification 1.4 times of master lens

Dimensions

Diameter 68.5mm x Length 19.5mm
2.7 in. x 0.8 in.
Weight 165g/5.8 oz.


APO TELE CONVERTER 2x EX DG for Sony

APO TELE CONVERTER 2x
EX DG for Sony
*Case supplied

Lens Construction

6 Elements in 5 Groups
Focal Length 2 times of master lens
Aperture Range F2.8 - 32
Magnification 2 times of master lens

Dimensions

Diameter 68.5mm x Length 52mm
2.7 in. x 2.0 in.
Weight 225g/7.9 oz.[/quote]

Vermutlich sind aber noch viele nicht-HSM-kompatible Exemplare im Umlauf:

http://www.dyxum.com/dforum/forum_posts.as...rs-hsm-for-sony

Im Januar 2009 schrieb "Shercando" z.B.:
ZITATThere is a deal of incorrect information on compatibility of current Sigma teleconverters with Sigma Sony A mount HSM lenses. There are none currently available that will auto focus. There are no Sigma Sony A mount HSM lenses of differing serial numbers that do either as was reported in DPR. The best you can get is manual focus.

Sigma is going to release a version for Sony very soon. Other HSM mounts such as Canon and Nikon are OK and do AF with Sigma APO EX DG teleconverters.

Unfortunately Sigma published a news release on 9-23-08 that clearly stated compatibility with APO EX DG teleconverters. It is incorrect and Sigma has yet to face up to the error. --Probably no apology is coming because they will do manual focus. Dealers worldwide are selling APO EX DG teleconverters for Sony HSM lenses that will not do auto focus.[/quote]
Laut ihm soll Sigma ihm am 2009-03-18 geschrieben haben:
ZITAT"They are available, --you just need to contact the dealer and make sure they order the newest one from us."[/quote]
Während "SyJohn" Sigma aus einer Mail von gestern wie folgt zitiert (mit angeblich der gleichen Kontaktperson bei Sigma ):
ZITATI thought honestly we would have had the first shipment by now but unfortunately nothing concrete on news yet. (March 25th)[/quote]
Sigmas Kompatibilitätstabelle wurde inzwischen aktualisiert und weist nun die AF-Kompatibilität aus:

http://www.sigma-photo.co.jp/english/acc/index.htm Dort unter "Chart of corresponding AF mount " auf "Sony" klicken:
ZITATSONY MOUNT LENS, 1.4X, 2X, NOTES

APO 50-150mm F2.8 II EX DC HSM AF AF (*) *4
APO 50-500mm F4-6.3 EX DG MF MF *3
APO 70-200mm F2.8 II EX DG MACRO HSM AF AF (*) *4
APO 70-200mm F2.8 EX DG MF MF *5
APO 100-300mm F4 EX DG MF MF *6
APO 120-400mm F4.5-5.6 DG HSM MF MF (*)
APO 150-500mm F5-6.3 DG HSM MF MF (*)
APO MACRO 180mm F3.5 EX DG MF MF
APO 300mm F2.8 EX DG MF MF *5
APO 500mm F4.5 EX DG MF MF
APO 800mm F5.6 EX DG MF MF
APO 50-500mm F4-6.3 EX RF MF MF *3
APO 70-200mm F2.8 EX IF MF MF *5
APO 70-210mm F2.8 MF MF *5
APO 100-300mm F4 EX IF MF MF *6
APO MACRO 180mm F3.5 EX IF MF MF
APO TELE MACRO 300mm F4 MF MF *6
APO TELE MACRO 400mm F5.6 MF MF
APO 300mm F2.8 EX MF MF *5
APO 300mm F2.8 MF MF *5
APO 500mm F4.5 EX MF MF
APO 500mm F4.5 MF MF
APO 800mm F5.6 EX MF MF
APO 800mm F5.6 MF MF
APO 1000mm F8 MF MF

NOTICE

USABLE LENSES AND COMBINATIONS
Sigma APO Tele Converter 1.4x and 2x are dedicated to Tele Converter lenses, which should be used with only listed lenses.AF function of Pentax mounts cannot be used with SFX/SF7 cameras.Do not use the APO Tele Converter EX on top of another APO Tele Converter, or any other kinds of converters.
ATTACHING THE APO TELE CONVERTER TO THE LENS
First, attach the APO Tele Converter EX to the master lens. Then, attach the lens and the Tele Converter to the camera body. If you attach the Tele Converter to the camera body first it may cause a malfunction.If using a lens with a SONY AF and attaching the APO Tele Converter EX to the camera body first, it may cause the AF mechanism to run idle.
Exposure
Using the APO Tele Converter EX decreases the effective aperture by one F-stop (with 1.4x Tele Converter) or by two F-stops (with 2x Tele Converter).Regardless of exposure mode, correct exposure can be obtained.If using a lens which has (*) in the list, the camera's display will indicate the converted exposure information. If using a lens which does not have (*) in the list while using a hand-held exposure meter, you should increase the exposure reading by 1-stop for the APO 1.4x Tele Converter EX or by 2-stops for the APO 2x Tele Converter EX.
Focusing
On the lists, the lenses marked "AF" will retain auto focus operation when used with a Tele Converter. The lenses marked "MF can only be used for manual focus.Some lenses will be operated AF even the list of SONY AF, NIKON, PENTAX mentioned "MF", however, be aware that these lenses cannot focus precisely by auto focusing. Therefore, please use such lenses in MF mode when teleconverter is attached. *1 With 1.4x APO Tele Converter, AF can operate between infinity and 1.2m. If the subject is closer than 1.2m, only MF is available. *2 With 1.4x APO Tele Converter, AF can operate between infinity and 0.52m. If the subject is closer than 0.52m, only MF is available. *3 When the Tele Converter is attached, the zoom range will be restricted to between 100mm to 500mm. *4 Autofocus will not function when attaching tele converters that are not compatible with HSM (serial number is lower than 5000001). *5 It is possible to use AF when attaching tele converters that are not compatible with HSM (serial number is lower than 5000001). *6 Only when attaching the APO TELE CONVERTER 1.4x EX DG that is not compatible with HSM (serial number is lower than 5000001), it is possible to use AF.
Main Specification

1.4X 2X
Lens construction 5 elements in 3 groups 6 elements in 5 groups
Focal length 1.4x that of a master lens 2x that of a master lens
Aperture coupling range F2.8 - F32 F2.8 - F32
Reproduction ratio 1.4x that of a master lens 2x that of a master lens
Dimensions 68.5 X 19.5mm (2.7in. X 0.8in.) 68.5 X 52mm (2.7in. X 2.0in.)
Weight 160g (5.6oz.) 235g (8.3oz.)
*Dimensions and weight include the SIGMA mount.
Page Top
Copyright 1999-2009 SIGMA CORPORATION All right reserved.[/quote]
Zum Vergleich kann die ältere Version dieser Tabelle vom Januar hier gefunden werden:

http://www.dyxum.com/dforum/forum_posts.as...D=445122#445122

Weitere Threads zum Thema:

http://www.dyxum.com/dforum/forum_posts.as...-tele-converter
http://forums.dpreview.com/forums/readflat...thread=30656793

Das erinnert mich doch stark an unsere Threads zu Sigma HSM-Objektiven an der Dynax 9 SSM:

http://www.mi-fo.de/forum/viewtopic.php?t=23328
http://www.mi-fo.de/forum/viewtopic.php?t=21303

Viele Grüße,

Matthias

Die Sigma HSM-Telekonverter sind jetzt verfügbar:

http://www.mi-fo.de/forum/viewtopic.php?t=24030
http://www.mi-fo.de/forum/viewtopic.php?t=31490

Angehängt zwei Fotos des alten nicht-HSM-Konverters: