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Fujinon Stabiscope S 12x40

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Fujinon Stabiscope S 12x40 Details

This Fujinon Stabiscope and it’s 12x magnification provides you with a little more power than what you would normally obtain from a standard 8x or 10x binocular, but where you really benefit is with the improved stability of the view without the need of a tripod. This has many benefits, from the ease of use of reducing eye fatigue as well as ensuring that you are able to examine every detail of the image that you are presented with.
Although it is not massive, the 3.3mm exit pupil is somewhat larger than that produced on the 16x40 Stabiscope and therefore these should provide you with a slightly improved low light performance. However, this is still fairly small and as such this binocular is best used in fair to good light conditions in order for you to perceive a bright image.
These Fujinon binoculars present you with a view that is 82m wide when measured at a distance 1000 meters away. For a 12x binocular this is good, however, it is still less than what you would normally get from a lower powered binocular and thus these are best used over longer distances and in open spaces.
This model offers a generous 17mm of eye-relief, which when you consider the relatively high magnification, is impressive and should be sufficient to achieve the full field of view even if you wear eyeglasses.

About Fujinon Stabiscope Binoculars

Made in Japan, this very high high-quality Stabiscope series of image stabilization binoculars was first introduced to the market as far back as 1980. This is not to say that they are outdated as since then they have been continuously modernized and improved upon and are now widely considered to be amongst the finest gyro-stabilized binoculars currently available.
Containing two 40mm models, with a choice of either a 12x or very powerful 16x magnifications, the combination of this with high end optical components and a stabilized image makes them an ideal solution in a wide range of areas that includes many marines, security, military, search and rescue as well as general use applications, be that from land, the sea or the air.

Important Features

Unlike many of its competitors, the Gyro-stabilization technology on the Fujinon Stabiscope binoculars will still work with binocular pointing at extreme angles. This aspect along with the  of vertical and horizontal stabilization means that they are able to provide you with a shake-free image even under extreme circumstances making them ideal for use on an unsteady platform like a boat on the high seas or even from an airplane or helicopter.
The rubber armored housing provides additional grip as well as protection, whilst the O-ring sealed ensure that these Stabiscope binoculars are 100% waterproof. These seals mean that they are also protected from small particles like dust from entering the system. The Stabiscope are also been filled with dry nitrogen gas that prevents the inner lens surfaces from fogging up. 
In terms of powering the stabilizer, the Stabiscope presents you with a number of options in that you can use as four "AA" batteries, a single 2CR5 battery or with the addition of an additional adapter, can be connected to a DC power source.

Optical Properties

Fujinon has fully multi-coated the optics on their Stabiscope binoculars which implies that they have multiple layers of an antireflection material added to all the optical surfaces throughout the pathway. This treatment reduces the amount of light reflected away or in an undesired direction and thus makes a noticeable difference to both the quality and brightness of the image.
These Fujinon binoculars use the individual eyepiece focusing system. Whilst this requires a little more time to set-up the binocular to match your particular vision, once completed, no further focusing is required as everything from the minimum focusing distance right to infinity will remain and be in perfect focus.


Fujinon supplies their Stabiscope series of binoculars with a military specification hard case including foam cutouts for the maximum level of protection during storage and transportation. You also get a carry strap and a woven hand strap with padding that is designed so that you can use the binocular with just your left or right hand in a similar way as you would a camcorder. A cleaning cloth is also supplied.
Optional accessories include the Stabiscope DC regulator pack for use without batteries, haze eyepiece filters, and polarizing filters.

Features of Fujinon Stabiscope Binoculars

  • Fully Multi-Coated Optical System
  • Phase corrected Bak-4 Roof Prisms
  • Protective Rubber Armour
  • Left or right-hand use
  • 100% Waterproof and fog proof housing
  • Fold Down/Up Rubber Eyecups
  • Individual Eyepiece Focusing 
  • 59-71mm Interpupillary adjustment range
  • ±5 Dioptric Correction Range
  • ±5° All-direction Gyro-Stabilization
  • Powered by four "AA" batteries or a single 2CR5 battery or DC using an Adapter

Accessories of Fujinon Stabiscope Binoculars

  • Fujinon mil-spec hard storage case with foam cutouts
  • Handgrip for Left or Right Hand Use
  • Cleaning Cloth
  • Optional Haze Eyepiece and Pol Filters
  • Optional DC Regulator Pack

Warranty Terms and Conditions

The Stabiscope series of stabilized binoculars are covered by Fujinon’s Limited 1 Year Warranty. Note that this Warranty does not cover the accessories and rubber coating.

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Fujinon Stabiscope S 12x40 Specifications

Binoculars seriesFujinon Stabiscope
Made inJapan
In production sinceNo
Warranty5 years
Type of prism Porro
Variable magnification No
Magnification. 13.6731x
Diopter adjustment ± 5m -1
Lens size diameter. 40mm
Exit pupil. 3.7338mm
Field of view - FOV... 0m/1000m
Field of view (angular).
Apperent FOV (angular). 5.17°
Eye relief distance. 19.2347mm
Closest focusing distance. 0m
Twilight Factor -
Light transmittance -
Relative Brightness 11.11
Stabilization angle+/- 5°
Lens coatings Fully Multicoated
Working temperature range-
Power Supply UnitAA
Filled with Nitrogen
Focusing system Separated for each eye
Diopter setting locationNo
Minimal interpupillary distance.66.1576
Maximal interpupillary distance.79.6134
Type of BodyFixed
Water proof Yes
Fogproof Yes
Tripod compliantNo
Built-in Compass No
Built in Range finderNo
Image stabilization (IS) No
Able to float No


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