16 and 30×70 Hunting Bird Watching or Astronomical Binocular Telescope

Top-quality waterproof, nitrogen-filled observation binoculars
Individual helical eyepiece focusing
Incorporating oversized BAK-4 prisms and a fully broadband multi-coated optical system
Top quality triplet objective lenses deliver superb, semi-apochromatic optical performance
Supplied with three pairs of 1.25″ eyepieces. Eyepieces are angled at 90° making them ideal for high-angle astronomical viewing
Features carrying handle, built-in lens hoods and tripod adaptor. High quality precision all-metal construction
Supplied in foam-lined Aluminium storage/carrying case.

Main specification
Model: A1670 Astronomical Observation Binoculars
Magnification: 16x (20x and 25x as optional)
Objective diameter: 70mm
Exit Pupil: 4.37mm for 16x
3.5mm for 20x (optional)
2.8mm for 25x (optional)
Eye Relief: 23.5mm for 16x
16.5mm for 20x (optional)
14mm for 25x (optional)
Field of view: 56m@1000m for 16x
56m@1000m for 20x (optional)
44m@1000m for 25x (optional)
Close focus: 25m
Focus type: Individual
Prism glass” BaK4
Coating: Mulit-coating
Body Weight: 3.5kgs
Color: Black, silvery white, Champagne