The Kenko Pro-300 DG 1.4x for Canon EOS is a high grade multicoated converter designed for use with lenses of 100mm or longer (on 35mm full frame format). It will autofocus with lenses of f5.6 or faster. The 5-element multicoated design uses low dispersion Hoya glass, and retains excellent sharpness even at full aperture. High quality construction, with metal body and chromed mounts.
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