Celestron Ultima 100 22-66x100 Spotting Scope

100 mm Refractor Spotting Scope Multi-Coated optics 45° viewing angle 22-66x zoom eyepiece Sight tube for quick targeting Waterproof Soft carrying case The largest aperture scope in the Ultima line, the Celestron Ultima 100 22-66x100 Spotting Scope offers more than 50% brighter images than the 80 mm, allowing for better performance in low light conditions. The 100 mm refractor features excellent multi-coated optics packed into a portable and durable refractor design and comes standard with a 22-66x zoom eyepiece. This series was designed to perform well in a range of viewing situations, making it a great all-around optical instrument. You’ll 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. Features 100 mm Refractor Spotting Scope Multi-Coated optics 45° viewing angle 22-66x zoom eyepiece Sight tube for quick targeting Waterproof Soft carrying case Specifications Magnification 22 - 66x Objective Lens Diameter 100mm (3.93") Eyepieces 8mm - 24mm (.31" - .94") Angular Field of View 1.8° - 1.0° Linear Field of View (@1000 yds) / @1000 m) 94 ft (28.6 m) @ 22x| 52 ft (15.8 m) @ 66x Focal Length 540mm (21.26") Exit Pupil 4.5mm - 1.5mm (.17" - .06") Eye Relief 18mm (.71") Close Focus 33 ft (10 m) Twilight Factor 82.1 - 47.4 Relative Brightness 19.7 - 2.2 Lens Coatings Multi-coated Prism Glass (Type) BaK-4 Prism Coatings FMC Weight 72 oz (2041 g) Environmental Protection Waterproof Nitrogen Filled Yes Tripod Adaptable Yes Carrying Case Padded green woven nylon view-through Camera Adaptable Yes Dimensions 540mm x 110mm x 180mm (21.3" x 4.3" x 7.1")