Bushnell 280750, 280751 warranty How to use the reticle to measure distance

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Model 280751

Fig. 4

Model 280750

When the target’s upper and/or lower limits are larger than the mils on the reticle, it can be measured in steps and the angle can be obtained by summing up the value of each step. (The process will be similar to the one that is discussed in the linear measurements section above.)

Fig. 5

How to use the reticle to measure distance

The distance measurement of a target can be calculated by using the mil reticle. Refer to the example in Fig. 5 above. (Note: the same concept and formula apply when using the vertical reticle either model Tactical binocular, 280750 reticle only is shown in Fig.5).

The formula for distance measurement: L(km)=H(m)/w

L= the distance between the observer and the target (in kilometers). H = the height of the target (in meters)

w=upper and lower angle of azimuth of the target measured with the binocular reticle (mil).

When measuring the distance, first, estimate the height or width of the target, then measuring upper and lower angle of the target. Accordingly, you can calculate the distance between the observer and the target using the formula.

For example:

There is a lighthouse whose height is known to be approx. 30 m. (H=30)

The upper and lower angle of the lighthouse as measured against the reticle in Fig. 5 is 0 – 60 mils (w=60) So, using the formula: L=H/w=30/60=0.5 km

Therefore: the distance between the observer and the lighthouse is 0.5 km.

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Contents Specifications HOW to USEUsing the Compass Using the Compass IlluminatorHow to measure the azimuth angle How to use the reticle to measure azimuthAbout The Ranging Reticle Upper and lower angle measurement How to use the reticle to measure distance How to use the compass Note Model 280750 only Lifetime Limited Warranty Mode D’EMPLOI LE RéticuleUtiliser L’ILLUMINATEUR DE Compas CaractéristiquesComment utiliser le réticule pour mesurer un azimut Le réticule de télémétrieComment mesurer un angle d’azimut Mesure d’un angle en hauteur Comment utiliser le réticule pour mesurer une distance Comment utiliser le compas Remarque Modèle 280750 Uniquement Bushnell Outdoor Products Cómo SE USA Cómo SE USA LA BrújulaAcerca DE LA Retícula Cómo SE Cambian LAS PilasCómo se usa la retícula para medir el azimut Acerca de la retícula telemétricaCómo se mide el ángulo azimutal Medición del ángulo superior e inferior Cómo se usa la retícula para medir la distancia Cómo se usa la brújula Nota Sólo en el modelo Garantía Limitada Para Toda LA Vida Spezifikationen GebrauchVerwendung DES Kompasses Information ZUM FadenkreuzVerwendung des Fadenkreuzes zur Azimutmessung Das Fadenkreuz zur EntfernungsmessungMessung des Azimut-Winkels Seitenwinkels Abb Messung des oberen und unteren WinkelsAbb Verwendung des Fadenkreuzes zur EntfernungsmessungVerwendung des Kompasses Hinweis NUR für Modell Beschränkte Lebenslange Garantie Informazioni SUL Reticolo Istruzioni PER L’USOUSO Della Bussola Come Cambiare LE PileCome usare il reticolo per misurare l’azimut Informazioni sul reticolo di rilevamentoCome misurare l’angolo di azimut Misura dell’angolo superiore e inferiore Come usare il reticolo per misurare la distanza Come usare la bussola Nota Solo modello Garanzia Limitata a Vita Informações Sobre O Retículo Como UsarComo Usar a Bússola Como Trocar AS PilhasComo usar o retículo para medir azimute Informações sobre retículo com telêmetroComo medir o ângulo do azimute Medida do ângulo superior e inferior Como usar o retículo para medir distâncias Como usar a bússola Observação Somente para o modelo Garantia Vitalícia Limitada Bushnell Outdoor Products

280751, 280750 specifications

The Bushnell 280750 and 280751 represent a significant advancement in the field of optics, offering exceptional performance for outdoor enthusiasts, hunters, and bird watchers alike. These binoculars are designed with a range of innovative features and technologies that cater to both casual users and those who demand professional-grade equipment.

One of the standout features of the Bushnell 280750 is its powerful magnification capabilities. With a 10x magnification and a 42mm objective lens diameter, this model provides bright and clear images, allowing users to observe distant subjects with precision and detail. The wide field of view further enhances the viewing experience, making it easier to track moving objects, be it wildlife in action or athletes during a sporting event.

In contrast, the Bushnell 280751 offers an even more powerful 12x magnification, which allows for close-up views of faraway subjects. This model, too, boasts a 42mm objective lens, ensuring that it captures ample light to maintain image brightness and clarity in various lighting conditions. Both models feature multi-coated optics that enhance light transmission, resulting in sharper images and vivid colors even in low-light environments.

Durability is a key characteristic of the Bushnell 280750 and 280751. Both models are housed in a rugged, shock-absorbing outer shell that can withstand the rigors of outdoor use. The waterproof and fog-proof design ensures that these binoculars can perform reliably in challenging weather conditions, making them the ideal companion for adventurers exploring diverse environments.

Another notable technology integrated into these binoculars is the use of BaK-4 prisms. This optical technology enhances image quality by providing a bright and clear view across the entire field of vision. The ergonomic design of the Bushnell 280750 and 280751 with non-slip rubber armor offers a comfortable grip, reducing the chances of drops and providing added protection against the elements.

In summary, the Bushnell 280750 and 280751 binoculars are designed for those who prioritize performance, durability, and clarity in their optical instruments. With impressive magnification options, advanced optical technologies, rugged construction, and a user-friendly design, these binoculars are sure to satisfy the demands of outdoor enthusiasts at any level. Whether for birdwatching, hunting, or simply exploring the beauty of the great outdoors, both models provide a reliable and enjoyable viewing experience.
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