India
India
Manual focus (MF) is often preferred for macro photography and other shooting situations that require precise focusing. However most photographers want to use autofocus (AF) to quickly get the subject into focus. The answer in such situations is the full-time manual focus (AF + MF) setting. After using One-shot AF to get an approximate focus, the final focal adjustment can be made manually by the user, by rotating the focus ring on the lens while still in AF mode. Full-time manual focus is extremely effective when you want to focus on a precise detail in macro photography, like one part of a flower. After a rough autofocus adjustment, the user can make adjustments to get the desired target in focus. This function was first introduced in the early EF lens series, and is now available in many RF lenses.