Two New Sliders Make Every Lightroom Mask Look More Natural

Mushy, halo-ringed edges around trees and horizons have plagued Lightroom masks for years, and Adobe just added two sliders that clean them up. The fix works whether you use Lightroom Classic or the newer Lightroom.

The new feather and edge controls sit at the top of your masking panel, and Matt Kloskowski walks through exactly what each one does using a sky selection that he deliberately pushes too far. Feather blurs the boundary of your mask, running from zero all the way to 100, though Kloskowski notes you rarely need to crank it that high. The edge slider settles in the middle at zero, and moving it left contracts the mask while moving it right expands it. On a sky selection, sliding edge to the right pushes the mask into the branches of the trees, which hides the visible seam instead of chasing a perfect selection. He recommends Lightroom users check under the same masking settings, where feather and edge appear in identical form.

Kloskowski demonstrates the controls a second time on a photo with a bear, using the landscape mask to grab the natural ground and brighten it. The selection there is good enough rather than perfect, and the hard edges show up around the trees and across the foreground once he pushes the brightness. Feather alone solves that one, softening the transition without touching the edge slider at all. He confirms the sliders work across the AI-based masks including subject, sky, background, and people, plus the landscape mask and select objects. Brush, linear gradient, and radial gradient are the exceptions, since those already carry their own feather setting built in.

The bigger shift here is the move away from technical selection work toward something closer to painting. Masking used to demand clean edges up front, which meant careful brush work, subtracting from selections, and layering fixes to disguise a rough boundary. These sliders let you accept a selection that is roughly right and then blend it into place after the fact, which is how retouchers have always handled edges in other tools. If you shoot landscapes or wildlife where foliage, fur, and skylines refuse to cooperate with automated selections, this changes the order of operations. You make the adjustment first, judge how it looks, and then dial in feather and edge to match the detail in that specific area. That approach rewards your eye over your patience, and it lines up with the direction Adobe has been pushing its AI masking for the last few releases.

Kloskowski also points out a smaller Classic-only addition tied to the crop tool. Right-click inside the crop and you get a crop mask with an adjustable opacity, letting you control how visible the difference is between the cropped and uncropped areas. He touches on generative expand in Lightroom as well, flagging the credit icon that tells you when a generation will draw down your account. That feature lives in Lightroom but not Lightroom Classic, since some people work in Lightroom without ever opening Photoshop.

Hit play on the video above to watch Kloskowski push a sky adjustment past the breaking point and then pull it back into something believable with two sliders.