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Home > For Home > Product Finder > EF Lenses > Extenders > Extender EF 1.4x III

Canon Extender EF 1.4x III

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Overview
Specification

Canon Extender EF 1.4x III

Extend the reach of your lens without losing image quality.

Ideal for press, sports and nature photography, this compact extender increases the focal length of Canon L-series telephoto or telephoto zoom lens’ by a factor of 1.4x, with higher AF accuracy and improved communication between camera and lens.

Benefits

Extends the master lens focal length by 1.4x
Outstanding image quality
Highly resistant to dust and water
Improved communication between lens and camera
Optimised lens coatings
Compatible with L-Series telephoto and telephoto zoom lenses

Detailed Features

Focal length extension for super-telephoto lenses

The Extender EF 1.4x III is specially designed to work in conjunction with L-series IS super-telephoto lenses, extending their focal length by a factor of 1.4x. The extender's design ensures there is no loss of lens performance or image quality.

High-quality construction

Improved anti-reflection materials inside the lens-barrel and a coating around the outer edges of the lens elements reduce flare. Construction is resistant to dust and water, helping to maintain images quality.

Improved communication between lens and camera

A built in microprocessor provides accurate transfer of data from between the lens and camera delivering an improved performance in AF and metering.

Compatible with L-Series telephoto and telephoto zoom lenses

The Extender EF 1.4x III is compatible with most telephoto and telephoto zoom lenses within Canon’s flagship professional L-series range, extending the focal length while only reducing the effective aperture of the lens by one stop.

Product Specification

Lens construction (elements/groups)	9/5
Dust/moisture resistance	Yes¹
Max. diameter x length (mm)	72.0 x 52.7
Weight (g)	325
Soft case	LP811

Dust/moisture resistance	¹ Lenses with dust/moisture resistance are fitted with a rubber ring on the lens mount which may cause sligth abrasion of the camera mount. This in no way affects either the lens or camera performance.