From: SIGMA CORPORATION <email@example.com>
Date: 1999-01-11 15:57
Thank you for your inquiry. The APO 1.4X and 2.0X teleconverters were designed to be used specifically on the Sigma 70-200/2.8. Besides that lens, only a few other lenses are compatible with them. Listed below are these lenses.
Sigma Corporation of America
15 Fleetwood Court
Ronkonkoma, NY 11779
(516) 585-1895 - fax
Notice! Sigma Apo Tele-Converter EX 1.4X / 2X are dedicated Tele Converter lenses, which should be used only with lenses listed in [Table 1]. If you mount a Sigma Tele Converter 1.4X EX or 2x EX to a lens that is not listed in [Table 1], it may damage the Tele Converter as well as the master lens.
@ = If using a lens marked "@" in [Table1], the camera's display will show the converted exposure information.
* = If using a lens marked "*AF" with the Canon AF, be aware that these lens can be used with center spot auto focusing only, even if using cameras that have multi point auto focusing.
|for CANON EOS Format|
|SIGMA APO 300mm f2.8||MF||MF|
|SIGMA APO TELE MACRO 300mm f4||MF||MF|
|SIGMA APO TELE MACRO 300mm f4 HSM||MF||MF|
|SIGMA APO TELE MACRO 400mm f5.6||MF||MF|
|SIGMA APO TELE MACRO 400mm f5.6 HSM||MF||MF|
|SIGMA APO 500mm f4.5||MF||MF|
|SIGMA APO 800mm f5.6||MF||MF|
|SIGMA APO 1000mm f8||MF||MF|
|@||SIGMA APO 70-200mm f2.8 EX HSM||AF||AF|
|SIGMA APO 70-210mm f2.8||MF||MF|
|@||CANON EF 200mm f2.8L USM||AF||AF|
|@||CANON EF 300mm f2.8L USM||AF||AF|
|@||CANON EF 300mm f4L IS USM||AF||MF|
|@||CANON EF 300mm f4L USM||AF||MF|
|@||CANON EF 400mm f2.8L USM||AF||AF|
|@||CANON EF 400mm f5.6L USM||MF||MF|
|@||CANON EF 500mm f4.5L USM||MF||MF|
|@||CANON EF 600mm f4l USM||AF||MF|
|@||CANON EF 1200mm f5.6L USM||MF||MF|
|@||CANON EF 70-200mm f2.8L USM||*AF||*AF|
The following is an updated list, with Sigma's latest lens offerings. This information is published in Sigma's FAQ, located on its web-site. The following current Sigma lenses can be used with the EX teleconverters.
|180mm f/3.5 Macro||1.4X||252mm||f/4.9||AF*||1.4:1|
|180mm f/3.5 Macro||2X||360mm||f/7||MF||2:1|
|300mm f/2.8 EX||1.4X||420mm||f/4||AF||1:5.4|
|300mm f/2.8 EX||2X||600mm||f/5.6||AF||1:3.8|
|500mm f/4.5 EX||1.4X||700mm||f/6.3||MF**||1:5.5|
|500mm f/4.5 EX||2X||1000mm||f/9||MF||1:3.9|
|800mm f/5.6 EX||1.4X||1120mm||f/8||MF||1:6.3|
|800mm f/5.6 EX||2X||1600mm||f/11||MF||1:4.4|
|50-500mm f/4-6.3 EX***||1.4X||140-700mm||f/7.3-8.8||MF||1:3.7|
|50-500mm f/4-6.3 EX ***||2X||200-1000mm||f/10.4-12.6||MF||1:2.6|
|70-200mm f/2.8 EX||1.4X||98-280mm||f/4||AF||1:5.6|
|70-200mm f/2.8 EX||2X||140-400mm||f/5.6||AF||1:3.9|
f4.5-5.6 EX OS
f4.5-5.6 EX OS
|100-300mm f/4 EX||1.4X||140-420mm||f/5.6||AF||1:3.6|
|100-300mm f/4 EX||2X||200-600mm||f/8||MF**||1:2.5|
|120-300mm f/2.8 EX||1.4X||168-420mm||f/4||AF||1:6.1|
|120-300mm f/2.8 EX||2X||240-600mm||f/5.6||AF||1:4.3|
|300-800mm f/5.6 EX||1.4X||420-1120mm||f/7.8||MF||1:4.9|
|300-800mm f/5.6 EX||2X||600-1600mm||f/11.2||MF||1:3.5|
* For Canon, Nikon and Sigma AF cameras, Autofocus operates from 47" to Infinity, Manual focus must be used from 47" to 18"; for Minolta and Pentax AF cameras, Manual focus only can be used.
** MF for all cameras, except Canon EOS 3 and EOS 1v, which can autofocus with this combination.
***Zoom control range is limited to 100-500mm, when the teleconverters are used with this lens.
Corrected effective aperture will be displayed on the camera's digital display, and TTL exposure will be normal, when these teleconverters are used with the lenses listed above.