What is Number of Focus Points?
The number of focus points on a camera refers to the number of areas in the camera's field of view that can be focused on.
Each focus point is a small area where the camera's autofocus system can measure the distance to the subject and adjust the focus accordingly. Cameras with more focus points generally offer more flexibility in terms of composition and focus, as they allow the photographer to choose which part of the scene to focus on. The number of focus points can range from a few in entry-level cameras to dozens or even hundreds in professional-level cameras. More advanced cameras may also offer additional features such as cross-type focus points, which are better at detecting vertical and horizontal lines and can improve autofocus accuracy. The number of focus points is one of many factors to consider when choosing a camera, and will depend on the photographer's specific needs and shooting style.