Combining superb optics, quality construction, and affordability, the Ultima DX series is perfect for the serious bird watcher who demands a binocular that is lightweight and easy to use, or the outdoor enthusiast who relies on rugged durability and resistance to the elements.

The new design elements of the Ultima DX Series include a waterproof body, shock-resistant rubber covering, and twist-up eyecups. Ultima DX binoculars provide superb image quality with BAK-4 prisms, fully multi-coated optics, diopter adjustment for sharp focusing, and they are super lightweight for their aperture size. With long eye relief for comfortable viewing and an excellent depth of field that provides a good overview without the need for constant refocusing, all Ultima DX models are excellent for all kinds of long distance viewing. And with large fields of vision, these binoculars are well-suited for astronomical and other low-light observation. It's simply hard to imagine a set of binoculars with these many outstanding features in such a durable yet lightweight design.

The Celestron 72022 features an 8x magnification and an objective lens diameter of 56 millimeters, giving it a 7-millimeter exit pupil. (The exit pupil size -- the diameter of the objective lens divided by the magnification -- determines the amount of light available to your eye. The larger the exit pupil, the brighter the image obtained will be. A three-millimeter exit pupil is generally sufficient for daytime use, five-millimeters is suitable for daytime and twilight, and seven-millimeters is generally necessary for maximum nighttime or astronomy use.) All Ultima DX Series models also come with Celest