Vortex Solo 10x25 Monocular S105 is a great 25mm to carry on your hiking or camping trips when packing super light. The Solo 10x25 Monocular by Vortex weighs less than six ounces, sealed with O-rings to prevent moisture and debris from getting into the monocular and the barrel is filled with Nitrogen gas to prevent fogging. 

• Magnification: 10 x
• Objective Lens Diameter: 25 mm
• Eye Relief: 14.5 mm
• Exit Pupil: 2.5 mm
• Linear Field of View: 315 feet/1000 yards
• Angular Field of View: 6 degrees
• Close Focus: 16.4 feet
• Length: 4.4 inches
• Width: 1.8 inches
• Weight: 5.6 ounces
  
  
• Fully Multi-Coated Lenses increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces.
• Rubber Armor provides a secure, non-slip grip, and durable external protection.
• Adjustable Eyecup twists up and down for comfortable viewing with or without eyeglasses.
• Waterproof optics are sealed with O-rings to prevent moisture, dust, and debris from getting inside the monocular.
• Fogproof barrels are filled with nitrogen gas to inhibit internal fogging.