PRODUCT DESCRIPTION The Celestron Ultima 80 series was designed to perform well in a range of viewing situations. Outdoor enthusiasts and adventurers will love it for observing nature and sharp long-distance spotting. The 80mm refractor features excellent multi-coated optics packed into a portable and durable housing and includes a powerful 20-60x zoom eyepiece. The Ultima spotting scope is completely waterproof and fogproof. Its been filled with dry nitrogen gas and sealed to prevent internal fogging of the lenses. Youll be able to enjoy your viewing activities to the fullest even during extreme weather conditions! The Ultima 80 angled spotting scope also includes a T-mount adapter for digiscoping this allows you to capture bright, sharp images through your spotting scope. Simply attach your DSLR camera equipped with a T-ring, and youre ready to go! Each Celestron optical product is engineered for the highest performance, durability, and quality in its class. Celestron optics provide you with a lifetime of viewing enjoyment at an unbeatable value! Buy with confidence from the worlds No.1 telescope brand and a leading sport optics brand, based in California since 1960. Youll also receive a Limited Lifetime warranty and unlimited access to technical support from our team of US-based experts. Celestrons popular Ultima 80mm Zoom Spotting Scope offers images that are noticeably brighter and sharper than entry level 60mm spotters. The Ultima 80 is a refractor style spotting scope with an Achromatic objective lens. Excellent light transmission is assured by multi-layer anti-reflection coatings on the objective lens as well as on the zoom eyepiece and the BAK-4 prisms. The multi-coated 80mm objective lens delivers 77% brighter views than a 60mm scope, and the built in zoom lens produces sharp images from 20X all the way up to 60X magnification. The Ultima 80 features a sleek, waterproof design and includes a padded soft case with zippers on both ends so the scope can be protected even while mounted on a tripod. Including the eyepiece the Ultima 80 measures just over 18 inches long and weighs about 3.6 pounds. The rubber eyecup can be removed to expose a standard T-thread for attaching a camera. I like the 45* angled eyepiece because I can use a shorter tripod to support the spotting scope while viewing or while taking pictures with a small camera attached to the eyepiece. The focus ranges from 27 feet to the horizon with just a few turns of the focus knob. When I fold down the rubber eye cup I can keep my glasses on and see the whole 2 degree field of view at 20X magnification. With my glasses on I need very little focus adjustment while I crank the zoom eyepiece from 20X up to 60X. Sometimes though I like to take my glasses off while observing because the view seems to have just a little more contrast and sharpness. I like the fact that the Ultima 80 gives me a sharp image either way. The drawback of the tradition crown and flint achromatic lens used in the Ultima 80 Zoom Spotting Scope is a bit of false color, also known as blue fringing or chromatic aberration. Blue fringing seems well controlled at 20X magnification, but it becomes incregly noticeable as I zoom up to 60X. Celestron also offers the Ultima 80ED and the Regal 80 F-ED spotting scopes which use exotic ED glass lenses to virtually eliminate blue fringing and produce the sharpest possible high power views. Shot at 20X zoom at about 20 yards, cropped 50% (Click here to see uncropped) Shot at 20X zoom at about 50 yards, cropped 30% Shot at 20X zoom, uncropped but reduced in size (Click here to see at 60X zoom) Shot at 20X zoom at about 50 yards, cropped 30% FROM THE MANUFACTURER The Ultima 80mm offers a step up in aperture from the 65mm, offering 50% brighter images. The 80mm refractor features excellent multi-coated optics packed into a portable and durable refractor design and it comes standard with a 20-60x zoom eyepiece. This series was designed to perform well in a range of viewing situations, making it a great all-around optical instrument. Youll love it for observing nature and long distance spotting. The green metal optical tube allows for subtle observation in any nature environment. Ultima spotters are a great companion for any nature or outdoor enthusiast. See more