Price: $479.49
(as of Oct 29,2025 23:16:40 UTC – Details)

Extending a lenses focal length by a factor of 1.4x, the Canon 1.4x EF Extender III (Teleconverter) incorporates phenomenal optical performance with minimal chromatic aberration and is a perfect complement to many of Canon super telephoto lenses. It features a built-in microcomputer for seamless communication among camera body, lens and extender; features careful lens placement and coatings to minimize ghosting and flare and even has a new Fluorine coating that keeps soiling, smears and fingerprints to a minimum. An integral part of many professional systems, Extender EF 1.4X III maintains high standards not only optically, but also in terms of rugged, dustproof and water resistant construction.
This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com
Focal Length & Maximum Aperture Magnification: 1.4x
Lens Construction of 7 elements in 3 groups
Max. Diameter x Length – 2.8″ x 1.1″ (72.0mm x 27.2mm)