You may remember our post on DigitalRev’s Hardcore Durability Test on the Canon 7D a while back ago. Now, a US Army soldier, Alex Jansen, took his Pentax K5 and K7 and buries it in sand, then washes it down in the shower. Pentax, along with Olympus, are considered legendary when it comes to their weathersealing, even more so than Canon and Nikons.