Kuvanäkökenttää

Kuvanäkökenttää, often translated as image field of view, refers to the extent of the scene that is captured by a camera or imaging system. It is determined by a combination of the lens's focal length and the size of the image sensor. A wider field of view encompasses a larger area, while a narrower field of view focuses on a smaller, more distant portion of the scene.

The field of view is typically measured in degrees, indicating the angle of vision the camera possesses. For example, a wide-angle lens will have a large field of view, often exceeding 90 degrees, making it suitable for landscapes or architectural photography. Conversely, a telephoto lens has a narrow field of view, typically less than 30 degrees, which magnifies distant subjects and is commonly used in wildlife or sports photography.

In digital imaging, the relationship between focal length, sensor size, and field of view is a fundamental concept. A shorter focal length on a given sensor size will result in a wider field of view. Similarly, a larger sensor size with the same focal length will also produce a wider field of view. Understanding kuvanäkökenttää is crucial for photographers and videographers to achieve their desired composition and perspective. It directly impacts how much of the surrounding environment is included in the final image or video frame.