Camera College
Photographer and writer Marcus is a former editor of Digital Camera
What do I need to know about autofocus points?
Digital cameras have multiple focus points, and often multiple focus point arrangements to choose from. But how exactly do they work?
Your camera’s autofocus or AF system is a complex and sensitive beast, but it can be broken down into three simple steps: how, when and where. The AF mode you’ve set on the camera determines ‘how’ the camera focuses – whether it stays locked on, continuously adjusts the lens when it detects movement, or does a bit of both.
‘When’ is often the
