The Swarovski Optik ATX / STX / BTX spotting scope system combines exceptionally flexible modularity with optical perfection. The objective lens can be changed to suit any viewing situation. SWAROVISION technology provides extreme detail recognition at crucial moments. 65mm Weight: 27.3oz 85mm Weight: 38.8oz 95mm Weight: 47.3oz The 65 mm objective module is perfect for those who want a lightweight device that offers outstanding optical performance, a large field of view, and impressive close-range focusing. 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. Excel Mfg: Swarovski