How to measure a target’s size (height and width) using azimuth readings (both models)

According to the formula for distance measurement, you can calculate the height using: H = D x w. When measuring the size, you first estimate the distance to the target, then measure the azimuth or upper and lower angle. With these measurements, you can calculate the height of the target using the formula.

For example: the distance is 0.6km between the observer and the target. You can measure that the azimuth is 60 (0-60) and the upper and lower angle is 30 (0-30). So, using the formula you can get:

The height: H=0.6 x 30=18m

The width: h=0.6 x 60=36m

How to measure distance directly using the reticle in ( Fig. 6) NOTE: Model 280751 ONLY

Fig. 6

For example, if the target is 2 meters in height, place the lower part of the target at the horizontal line on the reticle with the upper top part of the target against the angled scale line. The reading on the top of the target, where the top of the target or image touches the top of the angled scale line, is the distance between the target and the observer.(line value: 100m) As shown in Fig. 6, the distance between the target and the observer is 550m.

How to use the compass NOTE: Model 280750 ONLY

Fig. 7

The azimuth angle can be also measured through the compass built into the right half of the body . It shows the azimuth of the object vis-à-vis the observer. Each graduation of the compass equals one degree of angle. When the object lies in the north from you, the compass shows 0°.And it will increase when you turn clockwise. 90°means the object lies in the east from you, 180°means the south and 270°means the west.

In order to insure precise angle measurements, the binoculars should be kept horizontal and level when reading the compass. The object should lie in the middle of the reticle.

The graduations of the compass need to be illuminated for convenient viewing when there is not sufficient daylight to illuminate the compass dial. (Do not use the battery operated internal illuminating system when the outside viewing conditions are bright enough to see the compass dial and marking clearly.)

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Bushnell 280751 warranty How to use the compass Note Model 280750 only
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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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