Large aperture telephoto lenses work brilliantly with teleconverters and they are a great little tool if you want to extend your reach whilst keeping costs and weight down.
The Canon EF 1.4x III extender increases the focal length of Canon L-series telephoto or telephoto zoom lens by a factor of 1.4x. This teleconverter offers higher AF accuracy and improved communication between camera and lens.
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Ideal for press, sports and nature photography, the Canon EF 2x III extender increases the focal length of Canon L-series telephoto or telephoto zoom lenses by a factor of 2x.
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