Fully Multi-Coated (FMC) broadband coatings for increased light transmission and color fidelity
Focus System
Center focus
8x42
6.1° (107 m/1000 m)
10x42
6.0° (105 m/1000 m)
8x42
5.2 mm
10x42
4.2 mm
8x42
18.0 mm
10x42
13.6 mm
Close Focus Distance
3.0 m
Weight
650 g
Dimensions
148 x 123 x 52 mm
Water Resistance Rating
BSW-6 level waterproofing
Can withstand 30 minutes immersion at 50 cm depth
External structure is not fully sealed; immersion without timely drying may cause rust, mold, optical coating corrosion, and lubricant failure. Use in water or underwater operation is prohibited.
Additional details
Nitrogen Purged
Yes, to prevent internal fogging and allow water contact (not underwater use)
Large 23 mm aperture for comfortable viewing and bright, clear images
Silver-coated prisms reduce light loss and increase reflectivity (90%-95%), improving image brightness and sharpness
Fully multi-coated lenses increase overall light transmission to approximately 85%, enhancing image quality compared to standard 50% transmission binoculars
Ring-shaped thumb rest for secure grip
Dual anti-slip rubber armor on both sides
Diopter adjustment ring to compensate for vision differences
Retractable eyecups suitable for use with or without glasses
Color packaging box
Protective soft case with shoulder strap
Objective lens covers
Eyepiece covers
Neck strap
Cleaning cloth
User manual and specification sheet
Avoid observing through glass windows to prevent image blur
Avoid indoor observation when temperature differences cause air turbulence
Avoid heat sources near observation area to reduce air distortion
Observe in good atmospheric conditions (clear air, low humidity)
Allow binoculars to reach thermal equilibrium to prevent lens fogging
The BOSMA Golden Tiger 11th Generation binoculars combine advanced optical coatings, silver-coated BaK4 prisms, and robust waterproofing to deliver bright, sharp, and clear images for both close and distant viewing. Designed for comfort and durability, these binoculars are ideal for nature observation, bird watching, and outdoor adventures.
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