The Fotodiox 2x Telekonverter for Canon cameras is an optical precision component that was developed to expand its photographic possibilities. This high-quality 2x telephoneverter effectively doubles the focal length of the lens with which it is used and maintains the resolution and contrast of any fine look. The teleconverter multiplies the focal length of the existing lens by 2x and reduces the amount of light by 2 aperture levels. For example, if you use a 2x telephonever with a 300 mm lens, the focal length is effectively increased to 600 mm, and a lens set to F/2.8 now corresponds to f/5.6. In order to fully exploit the autofocus functions, a maximum aperture of f/4 or higher is required. Please note that the AF only works properly if there are enough light and contrast on the motif t.
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