Learning Library / Local control

How to · 7 min

Work with Radial and Linear masks

Shape one part of the photograph without moving everything else.

A mask limits where a local adjustment acts. Radial masks are useful around a subject; Linear masks are useful for transitions across a frame. Start with one clear purpose, such as slightly lifting a car or holding back a sky.

Monochrome Lab Pro · Interface details may vary

The method

Step by step.

  1. Open Masks, click +, and choose Radial or Linear. Select the layer you want to edit in the layer list.
  2. Position its on-image guide. Use the shape and direction to match the subject or transition, not merely the center of the photograph.
  3. Set local Brightness, Contrast, or Texture. Use a gentle correction first.
  4. Adjust Feather to make the transition natural. Use Layer Opacity to reduce the whole layer’s contribution.
  5. Toggle the overlay to inspect coverage and then judge the photograph without the guide. Duplicate, reorder, or delete layers deliberately; the source supports up to 10 layers.

Keep this close

Control reference.

Radial
A shaped region around a subject.
Linear
A graduated transition across the frame.
Feather
The softness of the transition.
Layer Opacity
Overall strength of that layer.

Closer to the controls

See the settings, not a reconstruction.

This detail is cropped from the real application capture above. Click to enlarge, then choose actual pixels to inspect the labels and sliders.

At your own pace

Try it.

On a meadow, use a gentle Linear mask to reduce the bright sky. Check trees crossing the transition for an obvious seam.

Watch for

An overlay is a guide to coverage, not the final image. Always switch it off before deciding whether the adjustment works.

Monochrome Lab Pro workflow guide. Interface details may evolve. Example settings are creative starting points, not automatic corrections.

Image
Use actual pixels to inspect the photograph or controls; scroll to move around. Escape closes.