What does AF mean in PHOTOGRAPHY & IMAGING

AF stands for Automatic Focus, which is a feature available in digital cameras and camcorders that allows users to focus on a subject quickly and accurately.

AF works by setting the lens to its optimal focal distance, with the autofocus system then performing fine-tuning of the distance to achieve clear images.

Not every camera has automatic focus capabilities - some can only be manually focused. However, many higher end models will have this feature built-in.

Yes, having the lightweight automatic focusing greatly reduces the chances of blurry images due to missed steps or human error when shooting with manual focus lenses.

Back AF (also referred to as "back button focus") is when a secondary shutter release button located at the back of the camera body is used instead of pressing halfway down on the shutter release button to acquire focus before taking a picture or filming video. This makes it easier for photographers and videographers to acquire focus quickly without having to worry about recalibrating each time they press down halfway on their shutter release button or when changing shots or subjects throughout a session/shoot.