Rangefinder. Monday , April 23rd , 2018 - 23:19:30 PM
When it comes to selecting one of the many laser rangefinders on the market, perhaps the first thing you want to look for is its potential range and application. Some rangefinders also use "modes" so that you can use it effectively in all kinds of terrain and weather. The potential range also varies as many are capable of accurately reporting the range of an object up to 2,000 or more yards. Whether you need one when you’re out golfing or are competing in an athletic, outdoor sport that allows you to use one, laser rangefinders can certainly be a huge advantage for any of these applications.
Also, you should be aware that all laser rangefinders operate by firing an invisible, tightly focused, beam of light at a given target and then measuring the time it takes for said beam of light to be reflected from the target and return to the rangefinder in order to calculate the distance to the target. Therefore, all laser rangefinders are adversely affected by hazy atmospheric conditions, glare, any objects between the rangefinder and the target and, objects that absorb the light beam instead of reflecting it. Consequently, even though rangefinders are designated as having a maximum distance at which that the particular unit will range a target, it should be noted that even though the manufacturer’s specifications may state a maximum distance of "X" number of yards for that particular unit, most will only range objects at that distance under optimal atmospheric conditions from highly reflective surfaces. However, when encountering atmospheric anomalies such as heat waves, glare, or even hazy conditions, any rangefinder’s ability to range objects over long distances will be reduced to between one half and one third of the stated maximum range! In addition, your ability to target and range objects may be further impaired by either poor optics or an overly bright reticle. Thus, some models of laser range finders feature a fixed amount of magnification but, it should be noted that while this feature does make your target appear larger in the view screen, it does not enable the rangefinder to measure accurately at longer ranges. Also, in addition to magnification, the better quality units feature multi-coated lenses that reduce glare and increase clarity which also helps you target your chosen quarry.
Accuracy Laser rangefinders are extremely accurate. Most will guarantee accuracy of plus or minus 1 meter. That is more than close enough for the average person and their needs, but this may not be good enough for commercial engineering or military use. For this, it is better to use GPS range finding techniques and triangulation equations.
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