Learning A Camera Zoom Lens Definition
Of these, optical zoom is the most important because it measures the focal length of the lens, which depends on its mechanical operation. As the camera adjusts the glass elements inside the lens, the focal length magnifies or contracts the field of view to the desired frame. A digital zoom lens uses software to simulate the camera’s focal length. Rather than adjusting the lens’ mechanical components, a digital zoom lens magnifies the image as displayed on the LCD screen, creating the illusion of a zoomed-in field of view....