ED Glass Objective Lens: The PF-80ED-A features an 80mm objective lens made of Extra-low Dispersion (ED) glass. Angled Body Design: This spotting scope has an angled body design, which provides comfortable viewing, particularly when observing objects at different angles or heights. Compatible with Various Eyepieces: The PF-80ED-A requires a separate eyepiece for viewing, providing flexibility to choose the eyepiece that best suits your needs and preferences.