CT long eye relief series binoculars: Features: * Long eye relie to accommodate eye glass wearers * Large ... center-focus knob CT long eye relief series binoculars: Features:* Long eye relie to accommodate eye glass wearers* Large ... light transmission Models available for CT long eye relief series:7x35, 8x40, 7x50, 10x50, 12x50, 10x60, 12x60; zoom models: 7-15x35 ...