Compact Porro Binoculars

  • 8x25 10x25 12x25 HD
  • 8x25 10x25 12x25 HD
  • 8x25 10x25 12x25 HD
  • 8x25 10x25 12x25 HD
  • 8x25 10x25 12x25 HD
  • 8x25 10x25 12x25 HD
  • 8x25 10x25 12x25 HD
  • 8x25 10x25 12x25 HD
  • 8x25 10x25 12x25 HD
  • 8x25 10x25 12x25 HD
  • 8x25 10x25 12x25 HD
8x25 10x25 12x25 HD  8x25 10x25 12x25 HD  8x25 10x25 12x25 HD  8x25 10x25 12x25 HD  8x25 10x25 12x25 HD  8x25 10x25 12x25 HD  8x25 10x25 12x25 HD  8x25 10x25 12x25 HD  8x25 10x25 12x25 HD  8x25 10x25 12x25 HD  8x25 10x25 12x25 HD

8x25 10x25 12x25 HD

  • Model : BT5590
  • Magnification :8x
  • Obj.lensr :25mm
  • Field Angle : 7.2°
  • Product description: The compact and lightweight 8x25 Binoculars combine aspherical optical elements and BAK4 Porro prisms to deliver edge-to-edge image sharpness with a 58° apparent angle of view.
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Key Features
● Aspherical Lens Elements
● BAK4 Porro Prisms
● Fully Multi-Coated Optics
● Angle of View: 6°
● Minimum Focus of 20"
● Center Focusing
● Twist-Up Eyecups
● 1/4"-20 Tripod Socket
Overview

The compact and lightweight 8x25  Binoculars combine aspherical optical elements and BAK4 Porro prisms to deliver edge-to-edge image sharpness with a 58° apparent angle of view.   The optical elements are also fully multi-coated to provide a high transmission of light. With a 8x magnification and 25mm objectives, you obtain a notable magnification, insignificant image jitter due to unsteady hands, and a compact form factor. You can easily spot your targets with a wide 7.2° angular field of view and quickly bring them into focus with a center focus wheel. In addition to observing distant scenes, birds, and game, the minimum focus of 5m allows you to study in detail close objects like butterflies, animal footprints, marks, or landscape features. To reduce image jitter while observing distant objects or for prolonged observations, you can connect the binoculars to a tripod via an integrated 1/4"-20 socket.   The binoculars also feature a 3.1mm exit pupil, a 17mm eye relief, and interpupillary distance and diopter adjustments.

The binoculars are very compact, lightweight, and features a single piece frame that houses objectives, which allows for a synchronized interpupillary adjustment.   To accommodate eyeglasses wearers, the binoculars offer twist-up rubber eyecups.   Also included are a carrying case, a neck strap, and eyepiece covers.

Optical Performance
● BAK4 Porro prisms
● Aspherical optical elements offer edge-to-edge image sharpness
● Fully multi-coated optics
● Angular field of view: 7.2°
● Minimum focus of 5m
● Interpupillary adjustment
● Diopter adjustment
Construction Details
● Single piece objectives' frame allows for a synchronized interpupillary adjustment
● Contoured body provides a comfortable grip
● Center focus knob offers an easy focusing
● Twist-up rubber eyecups
● Integrated 1/4"-20 tripod socket
Performance
Specification 8x25mm 10x25mm 12x25mm
Magnification 8x 10x 12x
Objective Lens Diameter 25 mm 25 mm 25 mm
Angle of View 7.2° 5.7° 4.6°
Field of View 126 m @ 1000 m 101 m @ 1000 m 82 m @ 1000 m
Field of View 378ft @1000 yd 303ft @1000 yd 246ft @1000 yd
Minimum Focus Distance 16.40 ft / 5 m 16.40 ft / 5 m 16.40 ft / 5 m
Eye width(IPD) 54-76mm 54-76mm 54-76mm
Exit Pupil 3.1 mm 2.5 mm 2.1 mm
Eye Relief 17.0 mm 17.0 mm 17.0 mm
Diopter Adjustment Yes / ±4 Yes / ±4 Yes / ±4
Focus Type Center Center Center
Prism Type Porro (BAK4 ) Porro (BAK4 ) Porro (BAK4 )
Lens Coating Fully Multi Fully Multi Fully Multi
Eyecups Twist-Up Twist-Up Twist-Up
Weight 338 g 338g 338 g
Size 112x65x117 mm 112x65x117 mm 112x65x117 mm


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