Description
In addition, the lens focuses as close as 11 inches ( 0.28 mm ) and offers both Canon’s full-time manual focus and a powerful ultrasound monitor ( USM ) ring , which are a fast and quiet autofocus produziert.Weitere features a constant f / 4 maximum aperture , the choice of Screw – 77mm filters or a holder in the rear of the lens for up to three gel filters and optical coatings optimized for use with digital cameras . With weather-resistant and similar to other high-end L – Series cameras , the lens carries a one year warranty .
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