A NEW ERA IN THE HISTORY OF SPOTTING SCOPES In those crucial hunting moments, the modular ATX / STX / BTX spotting scope system provides maximum functionality. The objective lens can be changed to complement individual preferences and forms of hunting. The device is operable with only one hand and, if necessary, it can be disassembled and easily transported. Its optical brilliance is based on SWAROVISION technology and enables you to see perfect images at a long-range. SWAROVISIONSWAROCLEAN 85mm objective module With the 85 mm objective module you can be prepared for any situation. Its large field of view and zoom range enable quick and precise observation. Excellent light transmission, zoom range, and close-range focusing also make it an ideal tool for digiscoping. Technical Data Effective objective lens diameter (mm): 85 Diopter correction at ∞ (dpt): > 5 Objective filter thread: M 87 x 0.75 Length (in / mm): 9.4 / 240 Weight (oz / g): 38.8 / 1100 Functional temperature: -13 °F to +131 °F (-25 °C / +55 °C) Storage temperature: -22 °F to +158 °F (-30 °C / +70 °C) Submersion tightness: 13 ft / 4 m water depth (inert gas filling)