Nikon Capture NX2 user manual Set Gray Point, Use a single point, Marquee Sample

❏Set Gray Point

In this mode you can identify an object within your photograph that was neutral gray in the scene and base the white balance off that object, or you can take an average of a section of your photograph and calculate the white balance off that section.

	By selecting this option and clicking start, you will be able to identify a single
	point that should be neutral gray. This is best used on an image that contains
	a Gray card illuminated by the main light source.
	To choose a point, select Use Single Point and click Start. The cursor will
	change to an eyedropper when moved over the active image. Click a neutral
	gray point to set the white balance.
Use a single point	You will notice that the Red and Blue sliders may have moved, and that these
	changes may have also been reflected in the small graph. You can further
	modify the white balance settings by moving the Red and Blue sliders
	manually. The Red slider enables you to shift the image’s white balance from
	cyan to red, adjusting the gain for the Red Channel. The Blue slider enables
	you to shift the image’s white balance from yellow to blue, adjusting the gain
	for the Blue Channel. Click on the reset button at any time to return the values
	to the default settings.
	By selecting this option and clicking start you will be able to draw a marquee
	on the image to identify a section for Capture NX to use as the basis for
	setting the white balance. Use this option when the scene was illuminated by
	a number of different light sources. Select a section that was illuminated by
	the light source you want to set the white balance to.
	To choose a section, select Use Marquee Sample and click Start. The cursor
	will change to an area-selection eyedropper when moved over the active
	image; drag to select an area. White balance will be set to the average for the
Marquee Sample	selected area.
	You will notice that the Red and Blue sliders may have moved, which may
	have also been reflected in the small graph. You can further modify the white
	balance settings by moving the Red and Blue sliders manually. The Red slider
	enables you to shift the image’s white balance from cyan to red, adjusting the
	gain for the Red Channel. The Blue slider enables you to shift the image’s
	white balance from yellow to blue, adjusting the gain for the Blue channel.
	Click on the reset button at any time to reset the values to the default
	settings.

130Chapter 15 — Edit List Develop Section