25x100 High Power Binoculars 100mm Large Objective BAK4 Astronomy Binocular for Observation
1. 25x magnification, 100mm large FMC objective, BAK4 Porro prism, 2°field angle, bright low-light imaging.
2. Independent eyepiece focus and diopter adjustment; 20mm eye relief for eyeglass wearers; rubber-armored metal body.
3. Nitrogen purged, water/fog/moisture proof; stargazing, long-range land and bird observation; wholesale and OEM welcome.
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(edit with the Customer Reassurance module)
(edit with the Customer Reassurance module)
Product Overview
This 25x100 giant binocular combines a 100mm large-aperture FMC objective with a BAK4 Porro prism for bright, sharp images in low light and at long range. Independent eyepiece focusing and diopter adjustment give precise focus, while the 20mm eye relief remains comfortable for eyeglass wearers. The nitrogen-purged, rubber-armored metal body suits stargazing, long-range land observation and birding.
Key Features
• 25x high magnification, 100mm large objective gathers more light for brighter, clearer imaging
• BAK4 Porro prism with FMC multi-layer coated optics for sharp, high-contrast views
• Independent eyepiece focus system with diopter adjustment for precise focus
• 20mm long eye relief, comfortable for users wearing glasses
• Metal structure with protective rubber armor for a firm, non-slip grip
• Nitrogen purged for water, fog and moisture resistance in harsh outdoor conditions
Product Specifications
Model: 25x100 Giant Binoculars
Magnification: 25x
Objective Lens Diameter: 100mm
Front Lens Diameter: 115mm
Prism: BAK4
Prism Type: Porro Prism
Eyepiece Diameter: 24mm
Exit Pupil Diameter: 4mm
Lens Coating: FMC (Fully Multi-Coated)
Relative Brightness Index (RBI): 16
Field of View (ft/1000 yards): 2°
Eye Relief: 20mm
Close Focus Distance: 50m
Waterproof: Yes
Fogproof: Yes
Shockproof: No
Diopter Adjustment: -4D to +4D
Color: Green / Black
Net Weight: 3800g
Dimensions: 388 x 246 x 115mm
Applications
Stargazing and astronomical observation, long-range land observation, bird watching, wildlife and scenery viewing. The large 100mm aperture performs well in low-light conditions such as dawn, dusk and forested areas.
Package Contents
• Binocular x1 • Carrying bag x1 • Objective lens covers x1 • Eyepiece covers x1 • Cleaning cloth x1 • Strap x1 • Instruction manual x1
B2B Service
OEM/ODM and wholesale orders are welcome. MOQ, lead time, packaging and shipment terms are confirmed after inquiry. Please contact our sales team with your quantity and destination for a quotation.
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