Description
The Canon Extender EF 1.4x III is a professional-grade teleconverter designed to fit between select Canon EF-mount lenses and Canon EOS cameras. It magnifies the effective focal length of compatible lenses by 1.4×, giving you extra reach without needing to invest in a heavier, longer lens — ideal for sports, wildlife, and nature photography. The extender uses optimized optics and advanced coatings to minimize ghosting and flare while maintaining excellent image quality, and features a microcomputer-controlled interface for reliable communication between camera and lens. It is also dust and water resistant (JIS2 standard) to withstand field conditions. When attached, it reduces the maximum aperture by one stop (e.g., f/2.8 → f/4).










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