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20×120 BINOCULAR TELESCOPE

BS-K7

20×120 high-power optical binoculars · 360°

20× magnificationØ120 mm objective3° angle of viewIPX7 waterproofNo power required
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The 360° 3D render is built from the design CAD model, so some details, such as the lower part of the stand, may differ from the actual product.

Product Photos

Smooth, precise observation
with patented technology

Our patented observation drive technology makes even large-aperture binoculars of about 15kg light and smooth to handle. They move freely up, down, left and right while staying stable for observation. A high-adhesion special coating that resists seawater and salt gives them outstanding durability in marine environments.

BS-K7 perspective view BS-K7 objective lens side BS-K7 eyepiece side BS-K7 head detail

Fixed-mount design with body, fork and stand joined as one

Specifications

Specifications

OPT
20×120 High-Power BinocularsPower-free direct observation
Magnification
20×
Objective Lens
120 mm
Angle of View
3°
Field of View
52 m at 1,000 m
Eye Relief
17 mm
Diopter control
−4D ~ +3D
Interpupillary distance adjustment
58 ~ 78 mm
Coated Lenses
AR fully multi-coated
Prism
Porro type
Observation Distance
10 m ~ ∞ (based on normal vision)
MEC
Build & EnvironmentLong-term outdoor use
Body Dimensions (L × W × H)
680 × 440 × 180 mm
Body Weight
15 kg
Material
Special aluminum alloy, 316 stainless steel fittings
Waterproofing
Nitrogen-purged, fully waterproof IPX7 (1 m depth, 30 min)
Operating temperature
−20 ~ +45 ℃
Azimuth adjustment
360° (locking pin)
Vertical adjustment
−30° ~ +70° (locking pin)
Waterproofing and operating temperature are based on official test reports.
MNT
InstallationFixed-mount stand
Pedestal
Fixed-mount · Aluminum · 410 × 180 × 410 mm · 5.6 kg
Stand (column)
Stainless steel · 500 × 127 × 1,150 mm · 10 kg
Wheels
Optional · 50 × 50 mm · 170 g
Power
Not required (power-free optical observation)
Manufacturer / Country of Origin
Baeksan Science Inc. / Made in KOREA
Key Features

Key Features

01
Ø120 mm Large Aperture

High light-gathering power brightens distant targets

02
Optical Materials · Porro

High-quality optical materials and a Porro prism

03
AR Multi-Coating

A clear view with less light loss

04
Individual Focus · Long Eye Relief

17 mm eye relief for long viewing sessions

05
Nitrogen-Purged IPX7

Resists fogging, even in rain and sea spray

06
Power-Free

Observe anytime, no batteries or power needed

Applications

Applications

Supplied to the Army, Navy, Marine Corps and Coast Guard for security and surveillance, and exported overseas as well.

Observation at a coastal outpost
01
Land Perimeter Security

Identify people and vehicles at long range

02
Coastal Surveillance

Watch approaching vessels and coastal activity

03
Naval Operations

Help identify vessels in surrounding waters

04
Observatories · Tourism · Astronomy

Tourist observation decks and astronomical observation

Made in Korea

Where Korean-Made Large-Aperture Binoculars Began

1996
Baeksan Science Inc. founded

Began designing and building large-aperture optics in-house

2013
A request from the military

"Can you build large-aperture observation equipment with adjustable interpupillary distance and focus here in Korea?" That question started our localization effort.

Development
Design and molds, again and again

Completed by matching the assembly tolerances of more than 50 molds and over 200 parts

Supply
To security sites nationwide

Field experience from military and maritime sites feeds product improvements and follow-on supply

Precision cleaning of the objective lens
Precision cleaning of the objective lens
Assembly line
Assembly and optical axis alignment
Service

Service & Contact

5-yearwarranty
  • From the date of installation, excluding lens damage
  • Please include a brief note explaining the product defect and installation details, plus your return address and contact information
  • If the product has been disassembled or reassembled by the user, A/S costs may apply

A/S Center · Baeksan Science Inc., Room 103, Suntech City, 474 Dunchon-daero, Jungwon-gu, Seongnam-si, Gyeonggi-do, South Korea
TEL +82-31-777-1515 · FAX +82-31-777-1511

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