HD PENTAX-DA 560mm F5.6 ED AW A super-telephoto lens assuring sharp, well-balanced rendition of distant subjects, designed for exclusive use with K-mount lens-interchangeable digital cameras | RICOH IMAGING
Pentax-DA 560mm F5.6 ED AW Review - Construction and Handling | PentaxForums.com Reviews (Mobile)
Pentax-DA 560mm Review In the Hands of a Photojournalist - YouTube