Not sure how weather and dirt-resistant Pentax cameras are? Look no further than this video of US Army Soldier Alex Jansen covering both his Pentax K-5 and K-7 — both weather-sealed cameras — with sand/dust/dirt and then rinsing them off in the shower. No other covers or protecting seals on these cameras at all. Cool. Reminds me of that Canon 7D water test video I posted earlier.