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55% OFF new PortraitPro 12 - use code EPHZROS414.
Rating: no ratingThe AT-X 16.5-135 DX's optical design benefits from three aspherical elements, one all glass precision-moulded element and 2 compound elements yielding high contrast. Additionally two Super-low Dispersion (SD) glass elements correct chromatic aberration. It also features a newly designed high-precision mechanical zoom cam system which minimizes play and eliminates zoom creep.