Users can easily call up or switch between functions assigned to the Fn(Function) button and control ring and change setting values as needed, allowing them to quickly set up their preferred style.
The L-Fn (Lens Function) button suspends the autofocusing operation temporarily to avoid unintended focusing on obstacles that appear suddenly between the camera and the subject.
The Tactile Pro 4 closely matches the layout of a standard Mac keyboard - complete with an Fn key and special function keys that work just like those on an actual Apple keyboard.