STREET PHOTOGRAPHY BY WILLIAM MURPHY
Here’s how to set up Back Button Focus (BBF) on your Sony FX30:
- Decouple Focus from the Shutter Button
Menu: Go to the Camera 2 tab (Red Camera Icon) -> [AF2] -> [AF w/ shutter] -> Set to [Off]. This prevents the half-press of your shutter button from activating autofocus.
- Assign AF to a Back Button
Menu: Navigate to the Gear Icon Tab -> [Operation Customize] -> [Movie Custom Key Setting]
Choose Your Button: The most common choice is [AEL Button], but you could also use [C5] or [C6] depending on your preference.
Set the Button: Select the button you want to use, scroll down to [AF On] and select it.
- (Optional) Customize Your Focus Behavior
The FX30 offers several focus settings to tailor BBF to your liking:
AF Mode: Go to the Camera 2 tab -> [Focus Mode]. Choose the autofocus mode suitable for your shooting (for example, [Continuous AF] for moving subjects).
AF Area: Under [Focus Area], select your preferred area mode. Consider [Flexible Spot] or [Tracking] options for precise subject tracking with BBF.
Practice Time!
Now, to focus:
Press and hold your chosen back button.
Release the back button to lock focus.
Press the shutter button to take the picture.
Additional Tips
Focus Magnifier: Pair BBF with Focus Magnifier (assignable to another button) to zoom in for precise manual focus when needed.
Practice: BBF takes some getting used to, so practice in various scenarios to build muscle memory.