Introducing iOptron SmartStar-E-R80 entry level GPS refractor telescope. Designed with the latest technology the 80 mm lens is crafted with a fluorite based, low dispersion glass that is ground and polished to exact specifications. The precision design is excellent for viewing bright stars, planets and their moons, as well as for bird watching and other land objects. Two eye pieces come standard to allow for flexibility in viewing either a wider field or a single focused object.