Exposure

Adjusts the layer’s exposure as if changing your camera’s settings, with finer control than Brightness & Contrast.

Exposure is measured in stops — each +1 doubles the brightness, each -1 halves it.

Offset shifts all pixel values up or down linearly, lightening or darkening everything uniformly.

Gamma adjusts midtones without affecting the brightest whites or darkest blacks — useful for recovering detail in shadows or highlights.