Sigma has today announced two tele-converter lenses the APO tele converter 1.4x EX DG and APO tele converter 2x EX DG. The tele converters are mounted between the camera body and the lens to increase the focal length by 1.4x or 2x. Both have a multi-layer lens coating to reduce flare and ghosting, won't compromise the quality of the other lens in use and high speed auto focus is retained when the converters are used.
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Sigma has today announced two tele-converter lenses the APO tele converter 1.4x EX DG and APO tele converter 2x EX DG. The tele converters are mounted between the camera body and the lens to increase the focal length by 1.4x or 2x. Both have a multi-layer lens coating to reduce flare and ghosting, won't compromise the quality of the other lens in use and high speed auto focus is retained when the converters are used. 