Celestron Binoculars

Celestron built its name on telescopes, starting with Tom Johnson's C8, and still ships from Torrance, California. That astronomy background explains half of its range: the SkyMaster porros are big, cheap, tripod-bound binoculars for the night sky, with 70mm objectives at $130 to $280. The other half are roof-prism nature binoculars that climb in three steps, from Nature DX ($149 to $157) to Nature DX ED ($230 to $240) to the magnesium-bodied TrailSeeker ($320 to $340), with the Regal ED 10x42 ($380) on top.

Each step adds something you can name. Nature DX ED adds ED glass to the Nature DX body. The TrailSeekers add dielectric prism coatings, a magnesium frame and a much wider view (426 ft at 1,000 yds on the 8x42s, against 388 to 393 ft on the Nature DX 8x42s). The Regal ED adds a locking diopter, 20.2mm of eye relief and a 4.9 ft close focus. On the astronomy side, the SkyMaster Pro 15x70 is the sealed, fully multi-coated version of the plain SkyMaster 15x70 at roughly twice the price.

Owners treat the Nature DX 8x42 as a safe first binocular, with 6.5 ft close focus that suits butterflies; its signature complaint is kidney-bean blackouts until you learn where to hold your eyes. Nature DX ED owners rate the glass above its price but dislike the narrow, collapsing eyecups and a sluggish focus wheel. TrailSeeker ED owners single out the wide field and brightness, and note a diopter that does not lock. Regal ED owners report edge-to-edge sharpness, a stiff focus wheel and eyecups that wander. SkyMaster 15x70 owners love the views and warn that units often arrive out of alignment.

That last point matters more than it would with other brands. Celestron's limited lifetime warranty covers only the original owner with proof of purchase, and collimation or alignment problems must be claimed within 30 days, so check any SkyMaster on a star or distant point in the first week. The other trap is eye relief on the 10x Nature models: 14mm on the Nature DX 10x42 and 14.3mm on the ED version, both tight for glasses, where the 8x42s give 17.5mm and 17.8mm.