Pentax! I can’t believe it, but Ricoh Imaging is announcing the Pentax K-3 Mark III Monochrome — a new DSLR camera that shoots only black-and-white images for $2,199.95, available in late April. It’s taking a page out of Leica’s book, but with a 25-megapixel DSL-friggin-R. It makes so little sense I just might love it.