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O4B Scorecard

Introduction | How the Scorecard Works

Check here if you wear eyeglasses

Parameter Pref. Fujinon 12x28 Choose... Choose... Choose...
Eye Relief 17
Close Focus 11
Weight 14
Field of View 219
Weatherproofing None
Eye Cups Twist-up
Lens Coatings Fully Multi-coated
Prism Material Phase-coated BaK-4
Class (Ref.) 0
Score
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Instructions

  1. Select binoculars by clicking the "Run O4B Scorecard" link on product pages while surfing the site.
  2. This table is limited to four binoculars. To remove a binocular, click on the "Remove" link at the bottom of the appropriate column above. To change to a different binocular, first remove a binocular from the comparison, then follow step 1 to add the new one.
  3. Set your preference factors by adjusting the numbers in the preference column from 0 (irrelevant) to 10 (most important).
  4. If you wear eyeglasses when you use binoculars, check the Eyeglasses box.
  5. If you want more information about a specification, click on its title for a definition and a link to an expanded discussion.
  6. For an explanation of Class and to learn how scores are determined, see How the Scorecard Works.



Learn About Optics


Day Optics

Designs - Quality, compacts, porro and roof prism designs for binoculars and scopes...
Designations and Considerations - Designation values, eye relief, weight & cups, exit pupil, and twilight factor...
Additional Consideration - Focusing, field of view, depth of field, weather proofing and nitrogen fill...
Optic Components & Image Quality - Lenses, mirrors, coatings, aberrations, distortions, and alignments...
Spotting Scopes - Construction, Objective lens, eyepieces, angled or straight, and focusing...
Tripods - Heads, legs, monopods, shoulder stocks, and window mounts...
Digiscoping - About, power, editing, considerations, cameras, techniques, and effects...
Care & Tricks - Holding techniques, cleaning, carrying, and protecting your optics...

Night Vision

Starlight Technology - NV Types, Starlight Technology defined, basic design and IR Illuminators...
Starlight Technology Night Vision Generations and Devices - Generation 1 to 4 - levels of NV technology, types of devices and their uses...
Use & Care - How to use, controls, and care for NV devices, extending capabilities...
Digital Night Vision and Thermal-Imaging - Digital NV and Thermal Imaging, how they work and compare to standard NV...

Buying Guide

Binoculars - All the factors to consider when buying binoculars.
Bins for kids - Special Considerations for children's binoculars.
Challenged - Special considerations with binoculars for the physically challenged.
Spotting Scopes - All the factors to consider when buying a spotting scope.
Tripods - Selecting the best tripod for your scope.
 
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