Canon Extender EF 2X III

The Canon Extender EF 2X III is designed for select Canon EF mount L-series telephoto lenses, effectively doubling their focal length while maintaining excellent image quality. It combines advanced optics, enhanced data communication, and improved environmental protection to deliver exceptional performance in various shooting conditions. This extender is particularly beneficial for photojournalists, wildlife, nature, and sports photographers who need extended reach to capture distant and challenging subjects, reducing the need to carry heavy telephoto lenses.

Featuring nine optical elements in five groups, the Extender EF 2X III ensures improved optical performance. All optical elements are coated with Canon’s Super Spectra coating to minimize ghosting and flare. Additionally, a new Fluorine Coating on the front and rear elements makes it easier to clean marks like water spots or fingerprints compared to standard coatings.

To enable accurate transfer of imaging data between the lens and camera body, the extender incorporates an integrated processor. This ensures that all focusing, metering, and ID information is available, allowing photographers to capture well-exposed and balanced images. When used with the latest premium Canon L-series lenses, these extenders maintain autofocus accuracy even when capturing moving subjects. However, it’s important to note that when the 2x extender is attached, the effective maximum aperture is reduced by 2 stops.

The extender features a thoughtfully positioned lens release mechanism, enabling quick and convenient mounting while minimizing exposure of the camera and lens to the environment. It maintains the exceptional build quality expected from Canon’s professional products and is resistant to dust and water, making it suitable for use in extreme shooting conditions.

In summary, the Canon Extender EF 2X III offers photographers an effective way to extend the focal length of compatible Canon EF lenses while maintaining image quality. With its advanced optics, reliable data communication, and durable construction, it provides a valuable tool for capturing distant subjects with precision and flexibility, making it an excellent choice for professional photographers.