What is Rangefinder? How Does Rangefinder Work?

Did you have any idea about rangefinder before? Look! In the era of modern technology, a Rangefinder device is essential and you can’t complete these activities accurately without a rangefinder device. you may use a rangefinder device for different purposes like distance measurement in construction, golf, firing, hunting, and so on.

If you are a hunter or golfer, you can use this device for an accurate hit to fulfill your target. For the same reason, armed forces use a laser rangefinder to measure the position of enemies’ tanks or planes precisely. Let’s explore the rangefinder and how they work!

What is a Rangefinder?

A rangefinder is one kind of device that is used to determine any distance from the observer. you can determine the distance of any objects from your position by Rangefinder.

This ranging device was developed by the Scottish firm of Barr and Stroud in the 1880s. The rangefinder is used for different purposes like armed forces, construction, golf sport, surveying, etc.

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How Does a Laser Rangefinder Work?

How Does a Laser Rangefinder Work?

The working system of the laser rangefinder is very simple and interesting. You can understand easily how a laser rangefinder works. First of all, a laser rangefinder emits a beam and it shoots this beam toward the targeted objects.

Secondly, the beam travels at the speed of light as the speed of the laser is equal to light. Then the beam reaches the targetted objects and it captures and reflects the different directions of the objects.

Finally, the beam comes back to the rangefinder. The rangefinder measures the times that the beam traveled and it converts the time into distance. Ultimately, you will get the distance of the objects.

Here, d indicates distance, c indicates the speed of light and t is the amount of time.

How Does a Hunting Rangefinder Work?

How Does a Hunting Rangefinder Work?

People like to hunt and they feel pretty happy if they can shoot their targetted prey. So, how can you shoot your prey exactly? The answer to this question is quite simple. You need to use a hunting rangefinder.

The rangefinder will guide you to find your prey. The beam of the hunting rangefinder will reach the targetted prey and the rangefinder will calculate the distance of the prey by converting time into distance. Finally, you can shoot your target precisely.

How Does a Golf Rangefinder Work?

You know the Golf field is very long and distant. The players use a golf rangefinder to determine the long distance of the field. The golf players use a Golf rangefinder for determining the distance of the green field, and the position of the slopes. hole, and to reach the pin accurately.

If a player can find out his/her target accurately and where he/she wants to send the ball precisely, he/she can use a golf rangefinder.

On the golf course, distance markers are set at intervals of 50 yards from the green area to 200 yards. But it’s necessary to take shots accurately within the yards to hit a flag. Let’s know how a golf rangefinder works!

  • Step 1: The player shoots the beam of the rangefinder to the flag or the targets and the laser travels at the speed of light.
  • Step 2: The laser hits the flag or target and covers the flag from different directions.
  • Step 3: The flag or slopes bounce back the beam towards the rangefinder and the rangefinder accepts the laser.
  • Step 4: the rangefinder takes the time that the laser travels in going and coming back
  • Step 5: The rangefinder turns time into distance and calculates the distance of the flag or slopes.

How Does a Rangefinder Camera Work?

A rangefinder camera is one kind of camera that allows the photographers to measure the distance of the subjects and it helps the photographers to take the snap accurately. First of all, we need to keep in mind that the rangefinder camera uses a dual-image device.

You should turn the ring and it will line up the images which will focus accurately. In the rangefinder cameras, you don’t need to look through the lens but you focus through a window which is on the top right. Actually, the rangefinder camera looks through the window that is on the left. your focus becomes straight because you turn on the focus ring and the focus ring brings the two images into one correlation.

The middle rangefinder window is set above and to the right of the lens which collects light to make sure the brighter of frame lens.


Shane Watson is a Co-Founder veteran. He had served the forces for years and that makes him quite an expert. His years of handling guns of all kinds made him not only a gun enthusiast but a thoroughly experienced one too!

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