The HD Pentax DA 20-40mm f/2.8-4 ED Limited DC WR lens is now $300 off at Adorama, B&H Photo and Amazon: Additional information on the lens: 30.5 to 61.5mm Focal Length Equivalency and f/2.8 Maximum Aperture With its 2x zoom coverage of 20-40mm, this lens offers focal length coverage from 30.5 to 61.5mm in the … Continue reading Deal of the day: the HD Pentax DA 20-40mm f/2.8-4 ED Limited DC WR lens is now $300 off