iOS 16 Portrait Lighting Slider Controls

In iOS 16, the Photos app gives users fine-tuned control over Portrait mode images through responsive adjustment sliders. When editing a Portrait shot, the operating system separates lighting intensity and depth-of-field into dedicated controls, allowing you to simulate moving a studio light closer or further away, as well as altering the background blur after the photo has been taken.

Accessing the Lighting Intensity Slider

To use the Portrait Lighting slider in iOS 16:

  1. Open the Photos app and select an image captured in Portrait mode.
  2. Tap Edit in the top-right corner.
  3. Tap the Portrait Lighting icon (the hexagon icon) located in the upper-left corner of the screen if it is not already highlighted.
  4. Choose an effect from the lighting wheel at the bottom (Studio Light, Contour Light, Stage Light, Stage Light Mono, or High-Key Light Mono). The default "Natural Light" effect does not support intensity adjustments.
  5. A horizontal slider will appear directly below the photo preview.

How the Lighting Slider Works

The Portrait Lighting slider operates on a numeric scale typically ranging from 0 to 100, with 50 serving as the default setting:

  • Increasing Intensity (Above 50): Dragging the slider to the right intensifies the chosen effect. In Studio Light, this brightens facial features and smooths skin tones more aggressively. In Stage Light effects, it sharpens the isolation of the subject and increases contrast.
  • Decreasing Intensity (Below 50): Dragging the slider to the left reduces the effect, blending the simulated light back toward the original, ambient exposure of the shot.
  • Haptic and Visual Feedback: As you drag the dial, the slider provides subtle haptic clicks, and the numeric value updates in real time to show your precise position.

Adjusting Depth Control Alongside Lighting

Portrait Lighting adjustments work in tandem with the Depth Control slider:

  • Tap the f-stop icon (represented by an "f" inside a circle) in the top-left corner.
  • A separate horizontal slider replaces the lighting dial, displaying aperture values from f/1.4 to f/16.
  • Lower f-numbers decrease the depth of field to create a softer, more blurred background (bokeh), while higher numbers bring more of the background into focus.

Saving or Reverting Changes

Any adjustments made using the sliders are non-destructive. Tapping Done in the bottom-right corner commits the changes. If you want to return to the original photo later, open the editor and tap Revert to reset the lighting intensity and depth values to their original capture state.