Látómezre

Látómezre is a Hungarian term that translates to "field of view" in English. It refers to the visible area that an observer can see. This concept is fundamental in various fields, including optics, photography, astronomy, and human vision.

In photography and optics, the field of view is determined by the lens's focal length and the sensor or film size. A wider lens will provide a larger field of view, capturing more of the surrounding scene, while a telephoto lens will have a narrower field of view, focusing on a smaller, more distant subject. The field of view is often expressed in degrees.

For human vision, the field of view is the total area that can be seen by the eye. This includes both the central (foveal) vision, which is sharp and detailed, and the peripheral vision, which is less detailed but sensitive to movement. The horizontal field of view for a human is typically around 190 degrees, with the vertical field of view being narrower.

In astronomy, the field of view of a telescope or binoculars dictates how much of the night sky can be observed at once. A wider field of view is useful for observing large celestial objects like nebulae or star clusters, while a narrower field of view is better for pinpointing and observing smaller, more distant objects like galaxies or planets. Understanding the field of view is crucial for selecting the appropriate equipment and for interpreting observations accurately.