Case Marine makes water filters, reverse osmosis water makers, and various other water improvement devices for, mostly, large ships. I spent the day photographing their people and machines near the Arlington airport. The Canon 5Ds and my tilt shift lenses performed very well. In fact, I will now say I am convinced the digital camera out performs the 4×5 film camera. Check out these pics for sharpness at original size (which by the way is only 1/2 the size of the original RAW file (51 million pixels to 100 million pixels if I combine files in panoramas or HDR).