Rangefinder. Wednesday , May 16th , 2018 - 13:58:19 PM
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.
History Rangefinders have actually been around for quite a while; clear back into the 19th century. Laser rangefinders in particular, being not nearly as old, have only become popular to the average person in the last 20 years or so. They have been used by commercial and military operations for some time now, but these models were typically too big and heavy, and way too much for the average person to use on a day to day basis, not to mention they are much too expensive for the average person to afford.
This measurement is at times made more difficult by many variables. Rivers, hills, trees, rocks, and other land marks often interfere with your depth sensing, even short distances can be difficult to gauge. The correct shot distance can be ascertained by the use of a rangefinders, there by helping the hunter to measure out his shot.
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