Pentax has brought out a special-run DSLR with genuinely uncommon optics. The K-5 Silver Special Edition both outfits the 16.3-megapixel DSLR with a semi-retro look as well as a very thin 40mm, f2.8 XS lens. Along with being a complement to the body, the lens keeps the overall size small and provides a prime lens to join more conventional options.