Brunton Eterna Spotting Scope The new Eterna Compact spotting scope is a head-turner. With a 50mm objective lens, it offers excellent viewing in a discreet package that's unbelievably easy to handle. We wanted a compact spotting scope with versatile performance for our optics collection, and we found it with the Eterna Compact With the included eye piece, you get a unique range: from 18x to 38x, giving you options you wouldn't expect from something so small. The inclusion of ED (extra-low dispersion fluorite) glass makes this scope especially desirable for birders, outdoor enthusiasts, hunters, and professionals alike. The scope also features full multi-coating, and is waterproof and nitrogen filled. It's another Brunton optic that's sure to become a tradition. Includes... Interactive neoprene case Lens covers Shoulder strap Limited lifetime warranty