Barska 10x21 Blueline Binocular

Barska 10x21 Blueline Binocular

Barska 10x21 Blueline Binocular

B&H # BA10X21BLMRL MFR # AB10290
No Longer Available

Product Highlights

  • BK-7 Reverse Porro Prism Design
  • Multi Coated Ruby Lenses
  • Wide Angle Viewing: 60°
  • Closed Bridge Configuration
  • Center Focus Wheel
  • Fold-Down Rubber Eyecups
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  • 1Description

The 10x21 Blueline Binocular from Barska features a reverse Porro prism design for a lighter more compact optic with multi-coated ruby lenses to minimize UV glare. The reverse Porro prisms place the objectives closer together and the oculars farther apart rather than the opposite. A wide angle of 6° compliments the wide Apparent Angle of View of 59.8°. BAK7 glass rounds off the pleasing closed-bridge design.

Ergonomic closed bridge design
Wide AVoV of 59.8° and a 314 foot FOV
Dioptric adjustment ring on the right ocular for individual eye viewing comfort
Lightweight 6.1 ounces and compact 4.6 inches produce a practical take-along-anywhere optic
Reverse Porro prism design places the objective lenses closer together than the oculars for a more compact, lighter binocular
Multicoated optics on at least one lens surface reduces light loss and glare due to reflection offering a brighter, higher-contrast image
Prism Type Porro
Magnification 10x
Objective Lens Diameter 21 mm
Angle of View 6.0° (actual)
Field of View 315.0' @ 1000 yd / 105.0 m @ 1000 m
Minimum Focus Distance 212.9' / 64.9 m
Exit Pupil Diameter 2.1 mm
Eye Relief 7.8 mm
Interpupillary Adjustment Not Specified by Manufacturer
Dioptric Correction Not Specified by Manufacturer
Focus Type Center
Tripod Mount None
Dimensions 4.6 x 3.9 x 2.5" / 11.7 x 9.9 x 6.3 cm
Weight 6.1 oz / 172.9 g
Packaging Info
Package Weight 0.55 lb
Box Dimensions (LxWxH) 4.8 x 4.1 x 2.6"
10x21 Blueline Binocular is rated 4.0 out of 5 by 1.
Rated 4 out of 5 by from Okay I use these for looking at birds and insects while working in the field. They are very small and lightweight and good for the price. They are not very sharp, however, I'm not sure that I would expect an inexpensive pair of compact binoculars to be.
Date published: 2016-02-17
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