What are the best golf rangefinders? What are you looking for cheap golf rangefinder? here, 2022 best golf rangefinder reviews[2023 Update], you can buy cheap and value golf range finder, Let’s prove it with objective data.
As a precise measuring tool, the rangefinder has been widely used in various fields. Rangefinders can be divided into ultrasonic rangefinders, infrared rangefinders, and laser rangefinders. The first two are no longer in production due to limitations in accuracy and distance. At present, golf rangefinder refers to the laser range finder.
It uses the principle of non-diffusion when the laser propagates and the refractive index of the laser is small when it passes through other substances. When the light beam is emitted from the rangefinder and hits the reflective object, it is reflected back and then received by the rangefinder. Then, the rangefinder chip can calculate the distance according to the time from when the light beam is sent to when it is received and the propagation speed of the light beam.
The algorithm of the pulse method ranges: half of the product of the beam speed and the round-trip time is the distance between the rangefinder and the object to be measured. Its advantage is that the accuracy of measuring distance is generally +/- 1 yard; the disadvantage is: that the rangefinder has a blind spot of 15 yards (the distance within 15 yards cannot be measured)
Most golf rangefinders use pulse-based distance-finding algorithms. Its calculation formula is as follows: D=ct/2
In the formula:
D——The distance between the two points A and B of the measuring station.
c ——the speed of light traveling in the atmosphere.
t —— the time required for light to travel back and forth between A and B.
A laser rangefinder is a measurement tool that uses lasers as a carrier to achieve ranging functions. At present, the lasers used in handheld laser rangefinders on the market mainly include the following: semiconductor lasers with working wavelengths of 905 nm and 1540 nm, and YAG lasers with working wavelengths of 1064 nm. The wavelength of 1064 nm is harmful to human skin and eyes, especially if the eyes are accidentally exposed to the 1064 nm wavelength laser, the damage to the eyes may be permanent. But no worries in the golf laser range finder, the 1064 nm laser is completely banned.
For the 905nm and 1540nm laser rangefinders, we call it “safe”. For the 1064-nanometer laser rangefinder, we call it “unsafe” because of its potential harm to the human body.
Laser rangefinder, because laser is used for distance measurement, and pulsed laser beam is a monochromatic light source with very concentrated energy, so when using it, do not look directly at the emission port with your eyes, and do not use an aiming telescope to observe the smooth reflective surface to avoid Injure people’s eyes. Be sure to measure according to the safe operation specifications in the instrument manual.
When measuring in the field, do not point the transmitter port of the instrument directly at the sun to avoid burning out the photosensitive element of the instrument.
“We’ve always been interested in ways to increase the speed of our championships,” said Jim Richardson, president of the USGA, which hosts the PGA. ” It has long been used in practice rounds with caddies to collect relevant yardages and is now incorporated into the rules of golf. ”
Defending U.S. Men’s PGA Championship champion Colin Morikawa agrees with the majors’ new rule allowing rangefinders but is skeptical that it will help improve the slow play that occurs in the game. “Can you see a 10-minute or 15-minute improvement in playing speed? I don’t think so, but more or less, allowing the use of rangefinders can still help some players speed up, I think that’s for sure.”
However, it is worth noting that in the new regulations, rangefinders are only allowed to measure distance or direction but are not allowed to measure slopes, altitude changes, or to provide playing aids (such as adding software to the rangefinder to analyze measurement parameters and display them, Advice on a line of play or club selection).
The PGA of America became the first major agency to allow the use of these devices at all of its major professional events. There has been speculation for years that such a device might help speed up the race.
According to Rule 4.3a (1): permitted devices can only report distance and direction. Equipment that calculates changes in altitude or wind speed, or recommends clubs and other data to players is not permitted.
One of the important functions: Slope and Non-slope
Choose between slope and non-slope? If you play on a course with considerable elevation changes, a rangefinder that calculates slope will give you the most accurate yardage readout. It considers the elevation changes and generates both the actual yardage as well as adjusted yardage.
1. The golf rangefinders are all laser rangefinders. According to the formula (D=ct/2), the algorithms are the same, so their accuracy is the same;
2. Why is the precision different in actual usage? (It may be related to hand tremor, product weight is too light, weather, mode, measurement object, lens, etc.)
3. The basic requirement of the rangefinder is accuracy, and other requirements are selected according to your actual situation.