Fiturbo x Bijia F1025 Portable BAK4 Roof Prism Compact Design Waterproof 10x25 Binoculars with Carry Case for Hunting, Bird Watching, Wildlife Observing, Sporting Events, Hiking, Concerts and Travel

product description:

BAK4 V.S. BK7
Fiturbo F1025 is equipped with BAK4 Glass, and why is it a better choice?
--The higher refractive index rate and the complete, circular shape of the exit pupil will mean more light will be transmitted to the entire field of view. This will mean brighter, color-rich, and sharper edges of your periphery. On the contrary, BK7 glass has lower refractive index rate compared to BAK4 and will produce distortion around the edge of the exit pupil.

Roof V.S. Porro Prism
Benefits of Roof Prism Binoculars:
• Can be optically superior to porro prisms with quality phase-corrected and mirror coatings
• Streamlined and sleek look is more attractive than porro prisms
• Lighter weight and more compact build
• Easier to weatherproof

Specifications:
Product Magnification: 10X
Objective lens diameter: 25mm
Field of view: 342ft / 1000yd
Prism Type: BAK4, 100% of the reflected light can present clearer and brighter image
Lens Coating: MC Green coated objective lens
Focusing system: Central Focusing
Water resistant: Yes
Weight: 0.44lb (200g)
Mini size: 4.3 x 3.4 x 1.6 inches

Package included:
1 x Fiturbo x Bijia 10*25 Binoculars
1 x Carrying case
1 x Hand strap
1 x Cleaning cloth
1 X User Manual

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