Range Finder Terminology

Nikon Range Finder 800 Camouflage is a popular example of high-quality laser rangefinder.

Laser Type: Class 1 Laser-Classified by the FDA.

Magnification: is simply the degree to which the object is enlarged. With a 7×35 binocular, for example, the object appears to be seven times closer than without the aid of a binocular. The number immediately [...]

Telescopes Terminology

The Celestron 21063 AstroMaster 90 AZ Refractor Telescope is a popular example of astronomical optics.

Optical Formulas: Telescopes are described by a numerical representation such as 450x60mm. The first number is the maximum magnification (an object will appear 450 times closer than viewed with the naked eye) and the second number is the diameter of the [...]

Night Vision Terminology

The American Technologies Network® NVM14 is a head-mounted, helmet-mounted or weapon-mounted night vision system.

Magnification: is simply the degree to which the object is enlarged. With a 7×35 binocular, for example, the object appears to be seven times closer than without the aid of a binocular. The number immediately following the “x” is the diameter in [...]

Binoculars Buyer's Guide

Binoculars always come in handy, whether you’re an avid hunter or an occasional theater goer. They are essential gear for camping and hiking, a day in the field or a vacation trip to the most adventurous location. Choosing the best binocular for your needs isn’t always easy. Consider when, where and how often [...]

Choosing The Right Telescope For Your Viewing Needs

Celestron Nexstar 5 SE Telescope is a popular example of high-quality Schmidt-Cassegrain optics.

For many of us, telescopes are mainly associated with astronomy or exploration. But not many of us realize how unique telescopes really are. There are three different general types of telescope out there, and each of them function differently. Each unique type is [...]