Результаты поиска по запросу "how do binoculars measure distance":

    1. Understanding Binoculars: How to Measure IPD - YouTube

      The interpupilary distance (IPD) is the distance between the centers of the left and right eye pupil. If the interpupilary distance of the binocular does...


    2. How Do Astronomers Measure Distance? - YouTube

      Since astronomers can't actually travel to a star, they rely on two ingenious methods to measure a star's distance from earth. Watch BrainStuff break down...


    3. How to Choose the Best Binoculars | REI Expert Advice

      • Example: 7 x 35 binoculars have objective lenses measuring 35mm. The diameter of the objective lenses largely determines how much light your binoculars can gather. If you have 2 binoculars with exactly the same specifications except for objective lens diameter, those with the larger diameter...


    4. How do scientists measure distance in light years? - Quora

      • How do scientists measure the distance between stars?
      • In order to measure enormous astronomical distances and to keep that in our puny human memory, a Light Year is used.A light year is defined as the distance travelled by light in one year.


    5. Rangefinder Binoculars: Ultimate Buyers Guide! | Rangefinding distance

      • How do Rangefinder Binoculars Work? It ’s becoming more and more tricky to answer this question, simply because there are so many different tools and technologies built into rangefinders to produce distance data than ever before. However, the overwhelming majority of affordable rangefinders use...


    6. Binoculars - Measuring distance | Forum

      • I always wondered, how do I use the binoculars to measure the distance to a location?
      • To measure distance, whether with a Sniper Scope or a Bino, you need to know the approximate size of the object.


    7. Binoculars Buying Guide | Just Binoculars | What are Binoculars and how do they work?

      • Binoculars are often specified by a set of numbers such as 7×35 or 8×40, the first number indicates the strength of magnification (how many times closer the subject is to you, 5 times closer, 7 times closer, 10 times closer) and the second number is the size of the objective lens measured in millimeters going...


    8. How to Measure Your Interpupillary Distance - wikiHow

      • Your inter-pupillary distance (PD) is the distance between your pupils, measured in millimeters. Eye doctors always measure this distance to ensure an accurate fit when they write prescriptions for eyeglasses. The average adult PD is 62 millimeters, though the normal range for most individuals is...


    9. How to Measure Pupillary Distance - YouTube

      What is pupillary distance also known as PD? Your pupillary distance is simply the distance between the center of the pupils of your right and left eye...


    10. How do I use the distance and size calculator on my Oceana binoculars? | Celestron - Telescopes, Telescope Accessories, Outdoor and Scientific Products

      • Your Oceana binoculars have a built-in etched reticle in the optical system to allow you to measure angles in the field of view. Once you measure an angle, you can use the calculator on the objective lens barrel to figure out either the distance to (if you know the size or height of what you’re looking at)...