HP Photosmart R507 Digital Camera and Dock HP Photosmart R507 Digital Camera and Dock Although the 3x zoom lens says Pentax, HPs new cameras are anything but copycats. This ones only an entry-level, four-megapixel model, but it has the posh digital flash and red-eye- removal features previously seen on its flagship cameras. Theres ... Lots of innovative features. Good size. Image quality is good but not best in class. Screen suffers in sunshine. Lots of innovative features. Good size.