Lightweight and easy-to-carry, the doubler is a great glassing tool.
(01:27)

Power and size of a binocular.
(00:46)

A quick way to check collimation and why it's important.
(02:31)

Why it's important and how to make adjustments.
(01:58)

Advantages of mounting your binocular on a tripod and how to do it.
(02:33)

The advantages of ED glass and reducing color fringing.
(02:12)

Calculation and its relationship with brightness.
(01:23)

Tips for preventing external fogging.
(03:43)

How to use the eyecups to get the most out of your binoculars.
(01:01)

Wide or narrow? What's right for you?
(02:05)

Setting the interpupillary distance, made easy with the Binoc-Loc.
(02:33)

Why quality coatings deliver brighter images and better color.
(03:16)

Common optics myths, misconceptions and gimmicks.
(06:46)

What phase correction does and how it works.
(02:05)

Features, advantages and benefits of roof and porro prism binoculars.
(03:03)

Pick the right size spotting scope for your applications.
(02:14)

Explanation of waterproof, water resistant and weatherproof optics.
(01:54)