Why They're CoolThe 10x25 configuration is trickyit's a lot of magnification in a small packagebut Brunton gives the XC10 the most solid, ergonomic, tactilely pleasing body in the field. The rubber-clad housing grips just right, with flat spots on the underside for the thumbs. The barrels stay just where you put them (not usually the case with double-hinged compacts), and the focusing ring is where you want it: index-finger handy. » Smallish objective lenses may reduce the potential for low-light viewing, but Brunton's coatings belie the specsthe lenses hold their own at dawn or dusk.Hmmm . . .Focusing the Epochs on the fly is tricky. The ring is small, and the rubber knurls get slick under sweaty fingers.