No more tweaking of confusing histograms, no more guess-work; a single slider in LightZone can adjust any of the 16 exposure values in an image: individually, grouped or selectively. Safely experiment with change in exposures without changing color or vice versa. Instantly create High Dynamic Range images, without the need to take multiple exposures. All operations are performed in a 16-bit dynamic range for maximum editing flexibility. An unlimited tool stack allows for unlimited edits to the photograph, in which the hierarchy determines in what order these edits are performed. Edit instructions are stored as non destructive operational layers (rather than pixel layers). Individual edit operations can be sequenced differently and turned on or off.