The Ultima 80 mm features a 45 viewing angle and offers a step up in aperture from the 65 mm, offering 50% brighter images. The 80 mm 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 and since it is completely waterproof you can feel comfortable using it in extreme weather. The green rubber optical tube allows for subtle observation in any nature environment. Ultima spotters are a great companion for any nature or outdoor enthusiast. Soft carrying case included.Celestron Ultima 20-60 x 80 Spotting Scope Magnification of spotting scopes makes it ideal for any nature activity in wild 60x magnification lets you enjoy the view with more clarity and detail With impressive light gathering ability, 80 mm objective diameter transmits detailed images Designed to be water-proof for handling extreme weather conditions