Canon EF-S 18-135mm f/3.5-5.6 IS STM (Announced Jun 8, 2012). Canon EF-S 17-85mm f/4-5.6 IS USM (Announced Aug 19, 2004). Canon EF-S 18-135mm f/3.5-5.6 IS (Announced Sep 1, 2009 ). It is one of the most important accessories for each lens you own.
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