Nikon 25385 User Manual - Page 132
Set Gray Point, Use a single point, Marquee Sample
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❏ 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. Use a single point Marquee Sample 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. 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 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. 130 Chapter 15 - Edit List | Develop Section
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