This Celestron 10 x 42mm Outland X roof prism binocular is designed for those who want high power, but don't want to pay a high price to get it. It also helps that you have to give up very little in performance and features with this Outland X to take advantage of its reasonable price. The Celestron 10x42mm Outland X is fully sealed and nitrogen purged to be waterproof and fogproof, so it takes unexpected summer showers or full downpours in stride, just like the premium binoculars. It has high grade BaK-4 roof prisms and multi-coated optics for good high contrast images with very good color fidelity, just like the premium binoculars. Is this Celestron 10 x 42mm Outland X as good as those über-expensive European roof prisms? No. But it comes darn close at only a fraction of those über-outrageous European prices.
Features of this binocular . . .
Roof prism optics. H-body roof prism design with internal center focus. High quality BaK-4 prisms for unrestricted light transmission.
Multicoated optics. Multilayer antireflection coatings for good light transmission, color fidelity, and image contrast. With a 4.2mm exit pupil, the 10 x 42mm Outland X does a very creditable job of picking out dim details in twilight or low light situations.
Waterproof and fogproof. Dry nitrogen filled and O-ring sealed to be waterproof and fogproof in all temperature and climate extremes. Designed to operate reliably in rainforests and deserts alike.
Armor. Black rubber armor absorbs noise and the bumps and thumps of everyday use and provides a good grip when wet.
Wide field. The field of view is 5.6° (293' at 1000 yards), quite good for a binocular in this power and aperture range.
Twist-up eyecups. The rubber-rimmed eyecups extend to block ambient light and increase contrast for those who don't wear glasses. They retract for eyeglass or sunglass use. Four clickstops let you match the individual eyecup height to your eyes. Eye relief is 18mm, for virtually unvignetted viewing for those who must wear eyeglasses when observing.
Rainguard and lens covers. A rubber rainguard is standard equipment, to keep eyepieces dry in sudden showers. It can be attached to the binocular neckstrap to hang down out of the way to one side when not in use, without danger of getting lost. Tethered objective lens covers protect the optics during travel or storage. They flip off the optics and hang down under the binocular tubes to stay out of the way when not in use, but can be removed completely if so desired.
Close focusing. About two turns of the ribbed rubber focusing knob moves from a near focus of 14' out to the horizon and beyond. While two turns and a 14' close focus are not designed for close-in birding, it is more than acceptable in a binocular designed for long distance observing across marshes and meadows like this 10 power Outland X. A very good depth of field limits the need for constant refocusing when watching birds at a distance.
Rotary diopter correction. A variable diopter ring on the right eyepiece allows you to match the binocular optics precisely to your individual eyesight for a sharp image.
Tripod adaptable. For extended no-hands observing, a protective cover on the front bridge unscrews, revealing a 1/4"-20 thread hole for mounting the Celestron 10 x 42mm Outland X on an optional photo tripod using an optional tripod adapter.
Standard accessories. A one inch wide woven neck strap for comfortable all-day use and a Cordura-style nylon carrying case with both a wide woven shoulder strap and a belt loop for no-hands carrying are standard equipment.
