http://www.electronics-price.com/Camera/tamron-af-18-270mm-f3-6-3-di-ii-vc-pzd-ld-aspherical-if-macro-zoom-lens-/ The acclaimed Tamron 18 270mm VC ultra zoom for APS C format DSLRs has reached an astonishing new level of compactness, performance, and speed Tamron lenses at Amazon.comwith the addition of PZD (Piezo Drive), an innovative ultrasonic autofocus motor based on an advanced piezoelectric design. The result is a lens that is considerably lighter, and noticeably shorter and slimmer Wed, 11 Jan 2012 00:29:16 CST en