Sport Optics Guide -Binoculars-

This guide is intended to help you understand and fully enjoy the use of your binoculars. Click on the categories below to view basic information, useful tips on how to choose and use binoculars, and explanations of optical technologies.

Basic Information about Binoculars

What are binoculars?
Types of binoculars
Magnification
Effective diameter of the objective lens
Exit pupil
Relative brightness
Eye relief
Field of view

How to Choose Binoculars

Choosing binoculars for the first time
Choose by specifications
Choose according to purposes and scenes

How to Use Binoculars

How to use CF binoculars / Nomenclature
How to use IF binoculars / Nomenclature
How to hold and tripod use
Precautions

Structure and Optical Technologies

Internal structure
Focus adjustment
Magnification principle
Lenses of binoculars
Lens coatings
Prisms of binoculars
Coating on roof (Dach) prism
Aberrations
Resolution

Glossary of binocular terms