Host Mark Bennett dives into diffraction, meanders through Photo Mechanic, listens to Peter Ensenberger list why lines are a leading cause of good composition, vows that you should shoot more verticals, and opens the floor up to Édouard Manet (the early French impressionist guy), Ren Ng (the Lytro camera guy), and Josef Albers (the guy whose quote escapes Mark's (the host guy's) figuring out). There's comedy, sound effects, music, and something else. Wisdom? Um, doubt it.