Sigma Teleconverter Compatibility

From: SIGMA CORPORATION <[email protected]>
Date: 1999-01-11 15:57

Dear Sir:

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.

Sincerely,

Sigma Corporation of America
15 Fleetwood Court
Ronkonkoma, NY 11779
(516) 585-1144
(516) 585-1895 - fax

Teleconverter Compatibility Charts

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.

Table Key

@ = 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.

[Table 1]

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

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Updated Lens Compatibility List

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.

LENS	Converter	Effective Focal length	Effective Aperture	Focus Function	Maximum Macro Ratio
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
80-400mm f4.5-5.6 EX OS	1.4X	112-560mm	f/6.3-7.84	MF	1:3.6
80-400mm f4.5-5.6 EX OS	2X	160-400mm	f/9-11.2	MF	1:2.5
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.

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