The Swarovski 85mm Objective Module is an 85mm diameter objective lens and is designed to work with the Swarovski ATX and STX modular eyepiece's (not included, available separately). The lightweight, robust ATX/STX series feature a modular design which enables you to mix and match the different eyepieces and scopes. This innovative modular design from Swarovski enables you to store the objective and eyepiece modules separately and the smaller dimensions also mean that you can easily and safely store individual modules in your luggage. The conveniently placed and easily accessible, textured focus ring on the Swarovski 85mm Objective Module is within easy reach and placed in front of the zoom ring on the ATX/STX eyepieces (eye piece not included) for simple, one-handed operation. When placing an STX (straight) or ATX (angled) eye piece onto this module you get a magnification range of 25-60x. Note: ATX or STX modular eyepiece required!