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O4B Scorecard
Introduction
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How the Scorecard Works
Check here if you wear eyeglasses
Parameter
Pref.
Barska 10x42 Lt Green
Choose...
Choose...
Choose...
Eye Relief
0
1
2
3
4
5
6
7
8
9
10
13
Close Focus
0
1
2
3
4
5
6
7
8
9
10
6
Weight
0
1
2
3
4
5
6
7
8
9
10
19
Field of View
0
1
2
3
4
5
6
7
8
9
10
305
Weatherproofing
0
1
2
3
4
5
6
7
8
9
10
None
Eye Cups
0
1
2
3
4
5
6
7
8
9
10
Rubber Fold-down
Lens Coatings
0
1
2
3
4
5
6
7
8
9
10
Fully Multi-coated
Prism Material
0
1
2
3
4
5
6
7
8
9
10
BaK-4
Class (Ref.)
2
Score
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Instructions
Select binoculars by clicking the "Run O4B Scorecard" link on product pages while surfing the site.
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.
Set your preference factors by adjusting the numbers in the preference column from 0 (irrelevant) to 10 (most important).
If you wear eyeglasses when you use binoculars, check the Eyeglasses box.
If you want more information about a specification, click on its title for a definition and a link to an expanded discussion.
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
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Special Considerations for children's binoculars.
Challenged
-
Special considerations with binoculars for the physically challenged.
Spotting Scopes
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All the factors to consider when buying a spotting scope.
Tripods
-
Selecting the best tripod for your scope.