Canon RF 1.4x Extender

Extend Your Reach Without Buying a New Lens

The Canon RF 1.4x Extender is a compact teleconverter built for photographers who need extra telephoto reach from select Canon RF super-telephoto lenses. It magnifies the image by a factor of 1.4x while retaining full electronic communication between lens and camera, making it a cost-effective way to extend focal length without the expense of a longer dedicated lens.

Designed for Wildlife and Sports Photographers

This extender is made for shooters who need more distance without the added cost of a longer lens. For example, a 600mm lens paired with the 1.4x extender becomes an 840mm lens, giving wildlife and sports photographers a genuine boost in reach that would otherwise require a significantly larger and more expensive optic.

Full Communication, Full Functionality

The extender retains full communication between the lens and camera body in all aspects, enabling seamless metering, autofocus, and image stabilization along with transmission of Exif data. Built with high-refraction, low-dispersion glass to minimize chromatic aberration and optimized coatings to reduce ghosting, it's designed to expand your reach without meaningfully compromising image quality. Note that using the extender reduces light-gathering ability by approximately one stop.

Rugged, Field-Ready Construction

The extender features dust- and water-resistant construction, including a heat shield exterior, ensuring reliable performance across a range of outdoor shooting conditions. It attaches directly between compatible lenses and the camera body using a smart-connect design, and Canon recommends mounting the extender to the lens first before attaching the camera.

Important Compatibility Note

This extender only works with a specific set of Canon RF lenses, and attaching it to an incompatible lens can damage both the extender and the lens. Compatible lenses currently include the RF 100-400mm F5.6-8 IS USM, RF 100-500mm F4.5-7.1 L IS USM, RF 400mm F2.8 L IS USM, RF 600mm F4 L IS USM, RF 600mm F11 IS STM, RF 800mm F5.6 L IS USM, RF 800mm F11 IS STM, RF 1200mm F8 L IS USM, and the RF 70-200mm F2.8 L IS USM Z. Popular lenses like the standard RF 70-200mm F2.8 L IS USM and RF 24-105mm zooms are not compatible. When used with the RF 100-500mm, the lens's zoom range is limited to 300-500mm while the extender is attached.

Key Features at a Glance

• Product: Canon Extender RF 1.4x
• Mount: Canon RF (full-frame)
• Magnification factor: 1.4x
• Light loss: approximately 1 stop
• Compatibility: select Canon RF super-telephoto lenses only
• Retained functionality: metering, autofocus, and image stabilization
• Build: dust- and water-resistant, heat shield exterior
• Optical design: high-refraction, low-dispersion glass with anti-ghosting coatings

A Strong Choice for Extending Telephoto Reach

The Canon RF 1.4x Extender is a smart choice for wildlife and sports photographers who already own a compatible RF super-telephoto lens and want additional reach without buying a new lens. It offers a cost-effective way to extend focal length while preserving autofocus and stabilization performance, making it a practical addition to a serious telephoto kit.