The Programmable Button That Helps Autofocus

When photographing action with a long telephoto lens, speed is everything. Even saving a fraction of a second could be the difference between a missed shot and the photo we are looking for. To that end, there is one programmable button that I find very helpful as a wildlife photographer – a “quick return” that gives the camera a better starting point to begin its autofocus. I’ll explain how it works in this article.