The ATERA H10x21 is one of the lightest image-stabilizing binoculars on the market, weighing just 358 grams, making it perfect for handheld use over extended periods. Thanks to its advanced vibration-cancelling technology, it delivers an exceptionally steady and stable field of view, even at a high 12x magnification. This means you can clearly observe fine details, whether you're reading distant signs, studying the delicate structure of bird feathers, or enjoying detailed star observations. Its 2-axis gimbal-mounted image stabilization system corrects vibrations up to ±3 degrees both vertically and horizontally, effectively eliminating hand tremors and micro-vibrations. The result is a crisp and sharp image without the usual blurring caused by natural hand movement. Powered by two easily replaceable AAA batteries, the binoculars provide up to 12 hours of continuous use—ideal for long observation sessions. An automatic power-off function activates after five minutes of inactivity to save battery life. Optically, the ATERA features comprehensive multi-coatings and anti-reflection coatings on all lenses, along with phase coatings on the prisms. These enhancements maximize light transmission and brightness, resulting in clear, bright, and high-contrast images with minimal stray light or glare.

The ergonomic design fits comfortably in your hands, and the focus ring is smooth and sensitive enough to adjust with just a light touch of one finger. The battery compartment is positioned away from the operating area for ease of use and includes a secure cover to prevent battery loss.

For added convenience, the binoculars come with a comfortable carrying strap and a compact protective bag, making them easy to transport and keep safe during travel.

Specifications

• Magnification: 10x
  
• Effective objective diameter: 21mm
  
• Type of prisms: Roof prisms BK7 and Bak4 (sub prisms)
  
• Coatings: Fully multi-coatings, Phase coatings, High reflectivity dielectric coatings
  
• Angular field of view: 4.8 degrees
  
• Apparent field of view: 45.5 degrees
  
• Field of view at 1000m: 84m
  
• Exit pupil: 2.1mm
  
• Brightness: 4.4
  
• Eye relief: 16mm
  
• Near focus: 3m
  
• Interpupillary distance: 55mm to 75mm
  
• Waterproof: No
  
• Vibration-canceller: 2-axis gimbal control image stabilization with auto power-off
  
• Vibration correction angle: About +/- 3 degrees
  
• Batteries / Duration hours2 x AAA Alkaline batteries / 12 hours at 20 degrees C ambient temperature
  
• Dimensions: 13.0 x 10.7 x 6.3 cm
  
• Weight: 358 g (12.62 oz.)