How to Build a Stereoscopic Rangefinder? – Step-by-Step Guide with Tips, Advice, & More

People often ask, how to build a stereoscopic rangefinder?

Let’s find out!

How to Build a Stereoscopic Rangefinder?

The process of building a stereoscopic rangefinder is quite simple. It involves using two cameras to capture images from slightly different angles. These images will then be used to calculate the distance between objects. This technique is called triangulation.

Technical Principle

Stereoscopic rangefinders use two eyepieces. The operator must adjust the direction of the rangefinder so that the reference marks appear to be overlapping. Then the prisms are rotated to align the marks.

Prisms rotate around the axis of the target. The angle of the prism increases as the distance to the target decreases.

Coincidence vs Stereoscopic Rangefinders

In 1941, the US government tested the Barr and Stroud Fq25 and the Bausch and Lomb stereoscopic rangefinder. Both were found to be accurate enough to use together. However, the Barr and Stroud was easier to use because it didn’t need batteries.

Height Finder

A stereoscopic rangefinder combines two images into one image. This allows you to see both sides of an object. Stereoscopy is used by military personnel to detect aircraft.

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How Did Stereoscopic and Coincidence Rangefinders Work?

Stationary AA battleships are huge targets that require a lot of ammo to bring down.

Optical Rangefinder Maximum Range Formula

The equation for calculating the maximum range is given by:

The maximum range is given by this equation:

Range (H-h) / tan(45 degrees).

My distance from the target ship is. My distance from the target is.

how to build a stereoscopic rangefinder

How to Build a Stereoscopic Rangefinder?

Coincidence Rangefinder

Optical ranging devices were used by American soldiers in the 1940s. These ranged devices had a single eyepiece and were used to measure distances. Coincidence rangefinder was an important element of fire control systems for naval guns. They were also used as rangefinder cameras. Stereoscopic telemeters looked very similar, but had two eyepieces. They were used in rangefinder cameras.

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Design

A telescope is a device used to view distant objects. Telescopes consist of a tube, a mirror or lens, and a mount. The tube is usually made out of metal or glass. A mirror reflects light onto the object being viewed. A lens focuses the light onto the eye piece. A mount holds the whole thing together.

If you want to know what rangefinder Phil Mickelson uses click HERE.

Applications

Optical rangefinders are useful tools for measuring distances. They are also used by photographers to determine how far away a subject is. Rangefinder cameras were originally designed as accessories, but eventually became integrated into the camera body.

Usage

A coincidence rangefinder uses a pair of eyepieces. When the beams coincide, the distance to the object is measured. In this case, the distance to the target is determined by rotating the compensator until the two images match up.

A coincidence rangefinder at a military history museum in Overloon. A coincidence rangefinder at the military museum in Brussels. A coincidence telemeter on a Leica camera. A rangefinder of the Polish destroyer Orp Wicher.

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Conclusion

Both stereoscopic and coincidence rangefinders work very well. The difference in performance between large or small instruments is not nearly as great as expected.

We hope that this article was helpful. If you have any queries feel free to reach out in the comments section below.

If you want to know more information about rangefinder click HERE.

Author

  • John Moses

    John is the Editor in Chief here at The Outdoor Stores. His area of expertise ensures that there is no one better to suggest which rifles are most suitable for your hunting experience. He is also available for you to contact him personally to discuss the types of animals you want to hunt and the terrain you will be hunting on. Feel free to read his posts for expert opinion on Rifles, Scopes, Rangefinders, Bonoculars and Monoculars.

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