Sigma 1.4x Teleconvertor APO EX DG Lens - Canon Mount

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.

Using 10-pin electrical interfaces, there is no loss of autofocusing speed when these teleconverters are used with compatible H.S.M. type lenses for Canon. They are ideally suited for use with the 70-200mm F2.8 APO EX HSM zoom lens; providing normal exposure and autofocus function, while maintaining its high optical performance.

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