| Description This tele extender can be used with fixed focal length lenses 135mm and longer (except the 135mm f/2.8 Softfocus lens), and the EF 70-200 f/2.8L, 70-200 f/2.8L IS, 70-200 f/4.0L, 70-200 f/4.0L IS USM, and 100-400 f/4.5-5.6L IS zoom lenses. Superb optically, it preserves the image quality of the lens it's mounted to and multiplies its focal length 1.4x. Effective aperture is reduced by one f-stop; autofocus is possible on any EOS camera when combined with a lens having an f/4 or faster maximum aperture.
Specification - Canon Extender EF 1.4x II
Focal Length & Maximum Aperture - Magnification: 1.4x
Lens Construction - 5 elements in 4 groups
Max. Diameter x Length, Weight - 2.9' x 1.1', 7.8 oz. / 72.8 x 27.2mm, 220g
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