Black and white cameras are a bit of a rarity, but they have been steadily present for years, and many photography purists swear by them both for the experience and the quality of images they provide. And so, as both a black and white camera and a DSLR, the new Pentax K-3 Mark III is an especially interesting camera. How does it perform in practice? This great video review takes a look at everything you can expect from the camera.