Canon Extender EF 2x III

The Canon Extender EF 2X III is specifically engineered for select Canon EF mount L-series telephoto lenses. It effectively doubles the focal length of a lens while maintaining outstanding image quality. To guarantee optimal image quality across various shooting conditions, it integrates redesigned optics, enhanced data communication between the lens and camera, and improved environmental protection. This extender is particularly beneficial for photojournalists and photographers specializing in wildlife, nature, and sports, as it allows them to approach distant and challenging subjects without the burden of carrying heavy telephoto lenses.

The Extender EF 2X III comprises nine optical elements arranged in five groups, which contribute to enhanced optical performance. Each optical element is treated with Canon's Super Spectra coating to minimize ghosting and flare. Additionally, a new Fluorine Coating on both the front and rear elements simplifies the cleaning process for marks such as water spots or fingerprints, making it significantly easier than with standard coatings. To ensure precise transfer of imaging data between the lens and camera body, the extender is equipped with an integrated processor that guarantees all focusing, metering, and ID information is accessible, enabling photographers to capture images that are well-balanced and properly exposed. When paired with the latest premium Canon L-series lenses, these extenders provide autofocus accuracy even when photographing moving subjects. It is important to note that when the 2x extender is attached, the effective maximum aperture is reduced by 2 stops.

Furthermore, a strategically placed lens release mechanism allows for quick mounting of the extenders, minimizing the duration that the camera and lens are exposed to environmental elements. The extenders are built to the exceptional quality standards expected from Canon's professional products, exhibiting resistance to both dust and water, which empowers photographers to utilize them in extreme shooting conditions.

• Carefully positioned lens release mechanism makes it easy to mount the extender quickly, reducing the time the camera and lens are exposed to the environment.
  
  
• Integrated processor communicates between camera and lens and ensures all focusing, metering and ID information is available.
  
  
• All optical elements use Canon's Super Spectra coating, reducing ghosting and flare.
  
  
• Fluorine Coating on the front and rear elements keeps soiling, smears, and fingerprints to a minimum.
  
  
• Sealed to be resistant to both dust and water, allowing photographers to use them in extreme shooting conditions.
  
  

Compatible Lenses

• Fixed focal length L-series lenses 135mm and over
  
  
• All versions of the EF 70-200mm f/2.8L, EF 70-200mm f/2.8L IS, and EF 70-200mm f/4L
  
  
• EF 100-400mm f/4.5-5.6L