Pentax HD DA 18-50mm F4-5.6 DC WR RE The Pentax HD DA 18-50mm F4-5.6 DC WR RE, designed for use with Pentax K-mount lens-interchangeable digital cameras. This standard zoom lens features a newly developed retractable mechanism for easy storage and outstanding portability, as well as a weather-resistant construction for dependable operation under all shooting conditions. […]