Binocular Field Of View Calculator

With binoculars spotting scopes and other optical devices the field of view is measured at 1000m so the hypotenuse is also 1000m.

Binocular field of view calculator.

For example if the angular field of a particular binocular is 8 then the linear field at 1000 yds will be 420 ft 8 x 52 5. Field of view is related to magnification. The larger the value is the wider the viewfield available. Binocular s field of view primarily depends on eyepiece design exit pupil not on the size of the binocular.

I have a pair of 10 x 50 binoculars. 60 is considered wide angle. It also depends on the magnification power. When adding an eyepiece or binocular please don t include the magnification or aperture details in the model this will get added automatically.

Now do i divide the second figure into the first after converting both to yards 1000 122so would that work out roughly to 8 degrees fov thanks in advance glen. Apparent field of view iso 14132 1 2002 standard convert angular fov in degrees to apparent fov in degrees. To calculate angular to linear fov is easy. 2 x arctangent magnification x tan angular fov 2.

Remember when the power increases field of view becomes narrower. The higher the angle the wider the field of view and the angular fov remains the same at any given distance. For magnification 20x field of view is around 3 3 degrees 199yds 1000 ft. Real field of view is the angle of the visible field seen without moving the binoculars measured from the central point of the objective lens.

Multiply the angle by 52 5 to get the linear feet fov. Visual mode imaging mode binocular mode choose. Field of view calculator test different telescope camera eyepiece combinations. For example binoculars with a wider field of view are advantageous for locating fast moving wild birds within the viewfield.

For example binoculars with a 5 8 degree angular field of view might be advertised as having a linear field of view of 102 mm per meter. As long as the fov is less than about 10 degrees or so the following approximation formulas allow one to convert between linear and angular field of view. In general a greater magnification yields a smaller field. Athlon optics midas 8 42 ed binocular.

Lower powered binocular always has wider field of view. Angular field of view can be used to calculate the linear field of view. Learn what field of view means how it works in binoculars or scopes. Real field of view.

If you need a powerful binocular with a reasonably wide field of view magnification 15x is the ideal choice which has around a field of view around 4 2 degrees. Smaller binocular can have wider field of view than a big binocular. Then we calculate the value of cathetus a adjacent to angle γ using equation below pythagorean theorem.