Specifications for the EF1.4X III and EF2X III Extenders

Article ID: ART174708 | Date published: 06/10/2019 | Date last updated: 06/10/2019


Please see the dimensions, weights, and other specifications for the EF1.4X III and EF2X III Extenders.


Major Specifications

Mount: Canon EF mount (Electronically controlled)
Lens construction:
EF1.4X III: 7 elements in 3 groups
   EF2X III: 9 elements in 5 groups
(Max. dia. x length):
EF1.4X III:  72.0 dia. x 27.2 mm / 2.8 x 1.1 inch
   EF2X III:  72.0 dia. x 52.7 mm / 2.8 x 2.1 inch
Weight: EF1.4X III: approx. 225 g / 7.9 oz, EF2X III: approx. 325 g / 11.5 oz
Case: EF1.4X III/EF2X III: LP811

* All specifications are based on Canon's tests and measurements.
* Product specifications and appearance are subject to change without notice.

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