The Endeavor HD Spotting Scope is a top-of-the-line spotting scope for serious hunters and birdwatchers. Available in 65mm angled, 65 mm straight, and 82mm angled, it is sure to fulfill the needs of anyone serious about their optics. All models feature a rubber armored magnesium body, are waterproof submersible, nitrogen filled and fog proof. The optical system employs extra-low dispersion glass (ED) to ensure accurate color rendition and virtually eliminate color fringing. The lenses are all fully multi-coated to ensure optimum light transmission and feature a phase-coated BAK4 roof prism. The eyepiece zooms from 15-45x on the 65mm models and 20-60x on the 82mm. It features an extendable rubber covered eyecup and boasts impressive eye relief even at the highest zoom settings. It also provides a very impressive field of view. A built-in sunshield is included to eliminate glare in direct sunlight and it includes a padded raincoat with sling for carry and protection. All models are equipped with fine and coarse focusing wheels for quick and precision fine tuning adjustments. The Endeavor HD mounts directly to Vanguard tripod heads (and others) that are equipped with the universal mounting plate without the use of a quick shoe. The tripod mount rotates on the angled scope to give optimum viewing angles in a variety of situations such as bench shooting and use with a window mount.