The Canon 1.4x III Extender extends the reach of the Canon 100-400mm f/4.5-5.6 Mark II lens to 140-560mm. This is my review of the Canon 1.4x III Extender on Canon EF 2X III Extender | Review & Overview. David Santiago. 255 subscribers. Subscribe. 9.3K views 1 year ago. A concise review and overview of the Canon EF 2X III Canon EOS 5D Mark II Canon EF 24mm f/1.4L II USM Canon EF 85mm F1.8 USM Canon EF 135mm F2L USM Canon EF 200mm f/2.8L II USM +4 more Canon EF 135mm F2L USM Canon Extender EF 1.4x III Canon Extender EF 2x III Canon has announced an upgrade on two of its popular extenders with the new Canon Extender EF 1.4x III and Extender EF 2x III. These direct replacements fe The Canon 100-400mm Mk II is also compatible with the Canon 1.4x extender, though it will only autofocus on higher-end Canon DSLRs that retain AF up to F8 (currently 7D Mk II, 5D Mk III, 5DS/R, 1DX/II). The 2x extender will physically fit, but all AF functions are disabled. 14 Jul 2012. #1. Maker/Provider: Canon. Product: Extender EF 2x III. Price: Around £400. Overall Rating: 8/10. Overall Summary: An effective way of doubling the focal length of a compatible lens, with the penalty of reducing the maximum aperture by 2 stops. Detailed Review. xeWe7C.

canon extender ef 2x iii review