Delta-Optical 7x50 binocular with compass and rangefinder

Delta-Optical brand binoculars specially designed for nautical use . They have 7 magnifications and 50mm of aperture, with these characteristics you gain stability during observation and also manage to maximize the field of vision , reaching 7.5º.
Optical joint structure , with Bak-4 prisms . The interior is purged with nitrogen to avoid fogging the optics with the sudden change in temperature. 100% waterproof even seawater.

They incorporate an internal compass with red lighting and a rangefinder to measure distances . A very practical utility for orientation in the middle of the sea and also for locating nearby objects, such as boats and landforms.
Characteristics:

• Target: 50
  
• Magnification: 7
  
• Field of View in Degrees: 7.5
  
• Field of vision at 1000 meters: 132
  
• Output eyepiece diameter: 7.1
  
• Eyepiece distance in mm: 23
  
• Minimum focal length: 5
  
• Twilight index: 18.7
  
• Relative brightness: 49
  
• Type crystals: BaK-4 / splint
  
• Measurements in mm: 200 x 80 x 150
  
• Weight gs.:890
  
• Waterproof: Yes
  
• Nitrogen: Yes
  
• Adap. tripod: yes
  
• Type approach: Individual
  
• Distance meter: Internal Optical
  
• Compass: Illuminated red, internal