As new " RING, MANUAL FOCUS RUBBER " and "RING, ZOOM (RUBBER) " for Canon EF 16-35mmm 1:2.8L II USM lens. - YB2-0021-000 1x RING, ZOOM (RUBBER). - YA2-2433-000 1x RING, MANUAL FOCUS RUBBER. Pulled form defective lens.
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