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Lightroom Better | How To Use Adjustment Brushes In Lightroom

By Holly Roa on June 20th 2017

Adobe’s Lightroom is the first photo editing program many new photographers will use as they discover the vast world of digital photo processing and manipulation. Attractively bundled with Photoshop for just $9.99 per month as a Creative Cloud subscription and much less intimidating than the blue icon possessing half of that duo, it’s definitely a good starting place for that journey.

Though its editing tools can feel a bit ham-handed compared to what’s available in PS, it is still very capable of being a one-stop editing shop. One powerful feature that makes this possible is the adjustment brush panel. While Lightroom doesn’t have layers per se, as Photoshop or even Capture One Pro do, one can effectively layer multiple brushed-on adjustment masks on top of one another for a similar effect.

ADJUSTMENTS

The adjustments that can be selectively made with the adjustment brush generally echo most of the frequently used global adjustments that can be found in Lightroom. The same set of sliders that is found in the adjustment brush panel is also used with the radial and gradient filters.

Rather than being arranged as hierarchical layers as in Photoshop, all adjustment masks coexist in the same plane and are handled individually with gray pins. Each mask has a pin, and clicking that pin will let you move or delete a particular mask. If you aren’t sure which pin belongs to which mask, hovering over the pin for a few seconds will reveal a red mask overlay which shows where that mask is painted.

BRUSHES

Beneath the adjustment tools there are five sliders and a check box that determine how the adjustment brush will behave. They are ‘size,’ ‘feather,’ ‘flow,’ ‘density,’ and a checkbox marked ‘Auto Mask,’ and here is what all of that means.

The ‘size’ slider, as you may have guessed, determines the size of the brush. The brush size can also be changed via mouse wheel or by using the left and right bracket keys.

The brush is represented on screen by an icon consisting of two concentric circles. The ‘feather’ slider determines the softness of the brush’s outer edge via the transition between the outer edge of the inner circle and the outside edge of the outer circle. More feather equals a longer transition resulting in a softer brush edge, whereas less feather equals a harder, more abrupt brush edge.

Flow’ can be looked at analogously to a firehose. The higher the flow, the greater the brush’s application of the adjustment in one stroke. Lower flow outputs less application of the adjustment per stroke. With a low flow, it takes multiple strokes to build up to the intensity of the effect as painted by a brush with higher flow.

Density’ is similar to ‘opacity’ in Photoshop, for those familiar. If the density slider is set to 100, the effect will be applied at full strength. The density slider determines the maximum intensity of an applied effect. If the density is set to 50, for example, no matter how many strokes are used, the adjustment can’t be stronger than half intensity.

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Auto Masking’ is a feature that, when enabled, tells Lightroom to guess what you’re trying to mask. It uses contrast to make these ‘guesses’ and as such, it only really works well when the area that you are masking is simple and defined by high contrast. Trying to use Auto Mask on complex areas will result in some pretty nasty artifacts.

The brush has two default presets, A and B, and an erase mode. The eraser can be quickly accessed by holding the alt (Windows) or option (Mac) key. It’s important to note that the brush for painting and that for erasing have separate settings which will need to be changed independently in the brush settings panel. Also note that If you have selected the eraser brush rather than accessing it via alt/option key, the alt/option key will toggle you into the regular brush instead.

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About

Seattle based photographer with a side of videography, specializing in work involving animals, but basically a Jill of all trades.
Instagram: @HJRphotos

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