The Curve option in the Base Characteristics panel dictates the initial tone mapping for the camera model. The choices offered are intended to emulate traditional film curves.
The Auto curve option automatically selects the appropriate tone curve characteristics based on the selected ICC color profile, it is usually the Film Standard setting. In general, this option can be left to the default Auto setting unless you prefer a different starting point with the tonal characteristics.
- Select an image or images in the browser captured with the camera model that you would like to apply the adjustments to.
- In the Base Characteristics panel, go to ICC Profile fly-out menu and either verify or select the appropriate profile for the camera model.
- Go to the Curve drop-down menu and select one of the following options:
- Auto (default) - selects the most appropriate tone curve based on the ICC profile selected.
- Film Extra Shadow - offers similar to the Film Standard option tone characteristics but with less contrast in the shadows.
- Film High Contrast - has a higher contrast than Film Standard, with deeper shadows and brighter highlights.
- Film Standard - gives a similar look to transparency film, with deep blacks and bright mid-tones and highlights.
- Linear Response - has reduced contrast overall and is intended to offer maximum control of tone mapping using the separate Curve tool found under the Exposure tool tab.
- Linear Scientific - this is intended for scientific purposes only and should be avoided for general-purpose photography. This option is not available for most cameras.