Incredibly wide field of view. Monarch M7 binoculars deliver an astoundingly wide field of view up to 435-ft. at 1000 yards (8x models). See more details and more of the scene, making it easier to locate your subject when spotting birds and wildlife amid trees and landscapes.

For example, with 8x42 7.0° binoculars: Field of view at 1,000m = 2 x 1000m tan (7.0÷2) = 122m.

The Monarch 20-60x82 ED Fieldscope is Nikon's latest entry into what we think of as the “mid-priced” scope market - scopes that offer a nice combination of reliable, high optical performance but at a price significantly lower than the truly high-end spotting scopes.

A bigger field of view is particularly helpful for people new to birding, making it easier to find birds when putting binoculars up to their eyes.

Here the larger exit pupil created by the 8x42 configuration is a definite advantage and means they will often look to have a brighter image than the 10x42 equivalent. Therefore even though they both collect the same amount of light and the 10x power potentially gives you more image detail, you cannot actually see it.

The Mark 5HD riflescope was selected as the optic for part of the U.S. Army's Precision Sniper Rifle (PSR) program. Not only does the new reticle improve accuracy, but its development within the Army means that costs are saved by avoiding license fees from the use of existing commercial products.

In many cases, a binocular is a sufficient tool to meet all of your hunting and shooting needs. When you want more magnification, more depth, and a closer look at nature, animals, or long-range targets, the spotting scope is your answer.

Viewing to the horizon is extremely uncomfortable with a 90° binocular, because you're looking straight down (-90°), making them unsuitable for any type of terrestrial viewing. Only 45° binoculars offer comfortable viewing of the entire sky, as well as to the horizon.

Some handy rules of thumb: a wide-angle lens. This is one reason why many birders prefer 8x models over 10x models. Manufacturers state field of view either in degrees (°) or in feet at 1,000 yards. Typical values for birding binoculars are between about 5.5° and 8.5° (that's 290–470 feet at 1,000 yards).

Field of View That's why a pair of 8x42s is so beneficial in the whitetail woods. A pair of 8x42s will give deer hunters a field of view of roughly seven degrees, depending on the make and model. That translates to a wider field of view than a pair of comparable 10x42s, which may offer 6.4 degrees or so.

The difference doesn't look big, but the surface area of the light that hits the eye is more than 20 % bigger. So, in terms of brightness, the difference will not be noticeable in the daytime, but in dusk or twilight, the 8×42 will perform a lot better due to the larger exit pupil.

The rifle he uses to make that insane 1920m shot is the TAC 338A, A dedicated long range platform. The rifle is outfitted in a similar fashion to the SR25 with both a Harris Bipod and a Leupold Mk4 Scope. In training, Kyle does use the Mk12, however it's seen only by a couple of other SEALs whilst in deployment.