Binocular Basics
Best Binoculars for the Money: Our Picks by Use
Find the best binoculars for the money by matching magnification, size and features to your plans, from birding and travel to open-country viewing.
Binocular Basics
Field of view, exit pupil, ED glass, prism types, how to adjust a pair to your eyes and a checklist for buying.
Binocular BasicsWhat Is Field of View on Binoculars?
Understand binoculars field of view, how feet at 1,000 yards and degrees describe the view, and how to choose a width for birding or distance viewing.
- Binocular Basics
How to Adjust Binoculars to Fit Your Eyes
Learn how to adjust binoculars for a clear, comfortable view by setting interpupillary distance, eyecups, focus, and the diopter for your eyes.
- Binocular Basics
Roof Prism vs Porro Prism Binoculars Explained
Roof prism vs porro prism binoculars differ in shape, size and design. Compare their tradeoffs and choose a style that fits your outings and carry needs.
Binocular BasicsWhat Is ED Glass in Binoculars?
Learn what ED glass in binoculars does, how it reduces color fringing, what it can't fix, and when it may matter for birding or outdoor viewing.
Binocular BasicsWhat Is the Exit Pupil on Binoculars?
Learn what exit pupil in binoculars means, how to calculate it, and how to choose a size for birding, travel, and low-light viewing.
- Binocular Basics
What to Look for When Buying Binoculars
What to look for when buying binoculars: compare magnification, lens size, field of view, eye relief, weather sealing and fit for your outdoor use.