Photo Tip: Achieve More Precise Focus with Back-Button Focus

Rear view of a Sony camera with the AF-ON button circled in orange for back-button focus.

Normally, focus is set by half-pressing the shutter button. With Back-Button Focus, you control it using a separate button on the back of your camera.

  • The focus stays locked on the subject, even if you release the shutter.
  • Ideal for fast-moving subjects like birds in flight.
  • Prevents the camera from refocusing every time you press the shutter.

Tip: Enable this feature in your camera settings and practice with moving subjects. A key advantage: You can assign two different focus areas to separate buttons—such as a wide field and a spot focus—allowing quick adjustments without navigating through menus.