The optical system features Extra-low Dispersion glass (ED) to ensure accurate color reproduction and eliminate color fringing. The lenses are fully multi-coated to provide optimal light transmission and have a phase-coated BAK4 roof prism. The Endeavor 65A comes with a 65 mm objective lens and a straight view with 15-45x zoom magnification. It includes retractable rubber eyecups and impressive eye relief even at the highest zoom settings. It offers a very impressive field of view. A built-in sunshade is included to reduce glare from direct sunlight, and it comes with a carrying strap as well as a rain cover. The Endeavor HD is also equipped with coarse and fine adjustment wheels for quick and precise fine-tuning. The Endeavor HD mounts fit directly onto Vanguard tripod heads that are equipped with universal mounting plates.