Sigma 1.4x EX DG APO Tele-Converter AF for Canon EOS Cameras

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About Sigma

The dedicated 1.4x APO Teleconverter features a high performance 5 element/3 group optical design, and it is optimized for use with long telephoto and telezoom lenses.

The high performance optical characteristics of these teleconverters maintain the optical performance of the compatible lenses with which they can be used.

Sigma APO Tele Converter 1.4x and 2x are dedicated Tele Converter lenses, which should be used only with the listed lenses.
The 1.4X Convertor will fit the following lenses
180mm f/3.5 APO MACRO EX HSM - MF
300mm f/2.8 APO EX HSM - AF
300mm f/4.0 APO MACRO - MF
400mm f/5.6 APO MACRO /HSM - MF
500mm f/4.5 APO EX HSM - MF
800mm f/ 5.6 EX HSM - MF
70-200mm f/2.8 EX HSM - AF
70-210mm f/2.8 - MF
50-500mm f/4-6.3 APO - MF
100-300mm f/4 EX HSM - AF
120-300mm f/2.8 EX APO - AF
300-800mm f/5.6 EX APO - MF
Will also fit the following Orginal Canon EF Lenses
200mm f2.8L USM - AF
300mm f2.8L USM - AF
300mm f4.0L IS - MF
400mm f2.8L USM - AF
400mm f5.6L USM - MF
500mm f4.5L USM - MF
600mm f/4L - MF
70-200mm f2.8L USM - AF

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.

Please refer to the manufacturers Teleconverer Matching List for an updated compatability chart.

Summary of Customer Reviews

Customers most agreed on the following attributes:
Lightweight (3)
Best Uses:
Wildlife photos (3)

Sigma Specifications

3 Groups /5 Elements
Dimensions (Length x Diameter)
68 x 20.1mm / 2.6 x 0.8"
143g / 5oz.
Mfr #

Reviews about this item

Reviewed by 3 customers

(1 of 1 customers found this review helpful)


NIce Piece of Equipment


from Waseca, Mn  -  Casual Photographer

Very hsppy with the added range and output of the units

(1 of 4 customers found this review helpful)




from Lubbock,Texas  -  Photo Enthusiast

Sigma tele-converter will mount up with my canon lens. But it will not mount up to my Sigma 17-70 2.8 lens.Be wear! It has its good range and bad range.Mostly good.

(1 of 1 customers found this review helpful)


Nice Output Compact Size


from Waseca, MN  -  Photo Enthusiast

Very Nice output for the price


Questions & Answers Powered by TurnTo®

Questions about this item:

Shopper  I have aSigma lense 150 500 and a canon eos camera. Can I use aSigma 1.4x EX DG APO Tele-Converter with the lense and camera? Thank you lori
TIMOTHY J H  I believe that you will be able to use it, but the auto-focus will not function when the 1.4x tele-converter is used. I am using it with a Sigma 120-400, on a Canon T2i... It works great, but no auto-focus (no big deal for me since I have found that I always shot with manual focus with a long lens. Hope this was helpful.
Shopper  Will this work on a Canon EF 70-200mm f/4L IS USM?
KEN K  While I don't have the specific lens mentioned, I don't believe this converter will fit. I several other Canon lenses, and it doesn't work with any of them. Even if it does, you should stick with converters made by the lens maker, i.e. Sigma converter for Sigma lens, Canon converters for Canon Lens. I'm sharing this from experience. I bought converters made by one maker and used it on a different lens. You will see a difference. This Sigma converter is a fine converter, but I only use it with my Sigma lens.

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