How to measure the distance of the dense point sight?

You have to look at the instructions first, the distance between the secret sites is several secret positions. It is generally a secret position. I'll just talk about it in a secret position.

No matter how you adjust the magnification, the ratio of the length corresponding to the dense site to the length of the object remains the same, that is, the magnification is higher, and the distance between the dense sites is also larger. A dense position is a milliradian, which corresponds to 1 meter at a distance of 1000 meters, and assuming that the image between a dense site is 2 meters long, then the distance is 2000 meters. There are five dots on the left and right sides of the crosshairs, which are the 5 secret positions.

The essence of ranging is to observe the ratio of a known transverse length to a dense point at a long distance. The most commonly used ones are the height of the person, the length of the rifle, the height of the vehicle, etc. For example, a rifle is approximately one meter long, and you can see in the mirror that the length of the rifle occupies three dense positions, then, one dense position is a meter, and the distance you have to the target is 300 meters.

There is only one key point in ranging: through the division of the scope, estimate the length of a dense position at the target, and use this length of 1000 to get the distance.

The mathematical principle is that for an angle as small as a dense position (radian), the value of tan (tangent) is approximately equal to the number of radians. The tan value is the ratio of a certain height or width to the distance at the target.

1 dense bit, this value is one thousandth. So the height or width of the 1 dense position is one thousandth of the distance. Multiply the estimated height or width by 1000 and you're the distance.

Here's another example. Seeing through the scope, a person's height (meters) occupies 9 secret positions, what is the distance? One dense position is equal to a meter, and the distance is 200 meters. (If you don't understand, ask me again.)

This imitation sight does not have the characteristics of a real military-spec sight, and for cost reasons, it does not have the same complex and precise optical path as the original, so the spacing between the dense spots cannot be adjusted with the change of magnification. If it's genuine, then it's correct according to the Harbin wind, but yours can only measure the distance by estimation.

Simplified method to calculate the distance: refer to the following formula: target length or high density x 1000, so as to calculate the distance of the target:

1. According to the white feathers of this kind of adult bird before being about 15cm, and occupying 10 dense positions in the sight (the magnification can be adjusted to measure the distance of different targets near and far), then the distance is calculated according to the formula: meters). Take the diagram as an example:

2. Distance measurement of the nearest building outside the window: because the height of the room in the house is known to be about 3 meters, there are about 4 secret positions (1 below and 3 on the top) in the sight. Then the distance from your house is the following:

3 (m) 4x 1000 = 750 (m). Take the diagram as an example:

1.The origins of sights, or optical sighting devices, are difficult to determine. It is said that at least in 16th-century Europe, there were already attempts to fix spectacle lenses on the butts of guns.

It is documented that before the 19th century, firearms had telescopic sighting devices that could be used for aiming in low-light conditions. Sights can be divided into, holographic sights, red and green dot sights, and laser sights.

2.Scopes are mainly divided into the following three categories: telescopic sights, collimating sights, and reflective sights.

3.Among them, telescopic sights and reflex sights are the most popular. These two types of sights are mainly used in the daytime, so they are collectively called white light sights, and there are also night vision sights for night aiming, which are added to the above two types of sights, and according to the types of night vision devices, they can be divided into low-light sights and infrared sights.

The right (left) eyepiece of the military rangefinder telescope is equipped with a dense reticle for measuring the distance, which can calculate the approximate distance to the target by formula, and there is also a new parabolic curve ranging method, which can directly read the distance without calculation. You can go to the physical store to experience it, there is a physical store of Boguan in the west of Huangpu Avenue in Guangzhou, you can go there to see more, and you will know that it is good if you see more.

The stuff in the movie, there is an exaggeration. But some, there is still a little shadow of reality.

The autofocus one is still there. It's very expensive though. The price-performance ratio is also low, as the telescope does not require very frequent focusing. It is only applied to a very small number of luxury civilian goods. Military ones are never used. It's complicated, and it's easy to break.

Telescopes, now with an electronic compass, are more common, but are rarely used in the military.

As for ranging, it's a special rangefinder with a monocular telescope on it, which is only auxiliary. It is mainly used for distance measurement.

There is no such product now. It's fictional in the movie. But with today's technology, it is possible to make such a product.

But if you make it, it will weigh two kilograms, and it will be unstable to hold. If you accidentally touch it, it will break, because it is electronic focusing, once it is broken, it can't be focused, and even the most basic telescope is useless. Even if it's not bad, you need to find a place with enough power at all times - to recharge.

And it's expensive.

Nobody uses it. You can learn more about what a real reality telescope looks like.

In addition, I want to remind you, hehe, there are indeed many telescopes on the market that claim to be "infrared night vision" and so on, hehe, they are all false propaganda, and that kind of product is not even a regular product.

This is a rangefinder, or ranging telescope, which is used both for military and civilian use. ** There is it on the list.

Take, for example, a two-person group. Observe the distance and wind direction of the hand, and calculate the trajectory comprehensively, and the sniper will calculate the amount of advance. Inside the scope there is a ruler division. The following figure shows the division of the rulers.

For example, the target is to the left relative to our speed, 2 dense positions in advance, and the second point on the right of the reticle can be aimed at the target. There are two buttons in the middle of the third scope, and both buttons have protective covers on them, and you can see these two buttons when you unscrew the covers separately. The button in the middle and upwards is adjusted to the height deviation.

For example, if there is an up and a down, turn in the direction of up, and the impact point will be automatically corrected upward.

It is a point on the scope, which is called a dense point, and every other point is 1 dense point, equal to the angular minute. If you divide a circumference into 6,000 equal parts, then each equal part is a dense place, so it is easy to know that a secret position is equal to a degree. The significance of a close-up point on a scope is to help measure the distance, or to respond to a target that suddenly appears at different distances.

Friends, long-range shooting is a very complex art, learn it well. If you don't understand, you can ask again.

There is a point where it is safe to snipe on the right side of the defender's house, but it is a bit difficult to jump up.

The thousandths of the angle represents one thousandth of an arcan, which is mainly used in the military industry ** and astronomy for rough observations, which is the most convenient to calculate, for example, a thousand meters away from the base source of the gun's shooting and aiming deviation, and the impact point of the projectile is one meter off. The accuracy is higher than the thousandth, the accuracy is lower than the thousandth, the dense position (meter), the angle of a week is equal to 6283 thousand, the dense position is equal to 21600 arc, and the general accuracy of the high-precision sniper training gun is about one corner (MOA) is within 100 yards of dispersion range of 1 inch.

1 dense position is equal to 360 degrees of 6000, which is about 1000th of an arcan. The West takes 6400. It should actually be 6283

I don't know, the angle can still be a little bit of that extent, the first time I've heard of it.

If you aim at 30 meters, you need to raise a dense point if you want to hit 50 meters, and lower a dense point if you hit 10 meters.

But each dog is a little different, you can try it at 10 meters and 50 meters to see how much it is different, and then record it.