This menu gives you an overview of the presets that are defined for darktable's modules. In this dialog you can select whether a certain user defined preset shall be auto-applied to matching images. By pressing the “import” button at the bottom of the window you can import a saved preset.
darktable already comes with a set of pre-defined presets for several modules. In addition you can define your own presets from within each module in darkroom mode (see Section 3.2.3, “Module presets”).
Pre-defined presets are shown with a lock symbol. Their auto-apply properties can not be changed.
Double clicking on a user-defined preset will open a menu. This allows editing the preset or saving it to an external .dtpreset file.
activate this checkbutton to automatically apply the preset on newly imported images; a set of fields is displayed where you can define patterns to be matched against Exif data.
activate this checkbutton to hide the preset in darkroom mode if it does not match the defined patterns.
a pattern to be matched against the Exif field that describes your camera model; use "%" as wildcard.
a pattern to be matched against the Exif field that describes the maker of your camera; use "%" as wildcard.
a pattern to be matched against the Exif field that describes your lens; use "%" as wildcard.
only apply the preset if the ISO value of your image lies within the given range.
only apply the preset if the exposure time of your image lies within the given range; set "+" as the upper value to match arbitrarily long exposures.
only apply the preset if the aperture of your image lies within the given range; set "f/0" as the lower value to match arbitrarily open apertures; set "f/+" as the upper value to match arbitrarily closed apertures.
only apply the preset if the focal length of your image lies within the given range (from 0 to 1000).