The Basic Tab

The Basic tab contains the controls for Saturation, as well as Master Lift, Gamma, and Gain parameters that let you make additional adjustments to the contrast of your image.

Figure. Basic tab.

For more information, see:

Saturation Controls

Saturation describes the intensity of the color in an image. Image saturation is controlled using three parameters which, similar to the other controls in the Primary In room, let you make individual adjustments to different tonal zones of an image. Like the contrast and color controls, tonality-specific saturation adjustments fall off gently at the edges of each correction to ensure smooth transitions.

Figure. Saturation parameters.
  • Saturation: This parameter controls the saturation of the entire image. The default value of 1 makes no change to image saturation. Reducing this value lowers the intensity of the color of every pixel in the image; at 0 the image becomes a grayscale monochrome image showing only the luma. Raising the saturation increases the intensity of the color. The maximum saturation you can obtain by adjusting the “virtual slider” of this parameter with the mouse is 4. However, you can raise this parameter to even higher values by entering a number directly into this field.
    Figure. Before and after overall saturation reduction.

    Beware of raising image saturation too much; this can result in colors that start to "bleed" into one another and a signal that's illegal for broadcast.

    Figure. An oversaturated image.

    If the Broadcast Safe settings are turned on, the legality of the image will be protected, but you may see some flattening in particularly colorful parts of the image that results from the chroma of the image being limited at the specified value. You can see this in the Vectorscope by the bunching up at the edges of the graph. Even if you're not working on a project for video, severely oversaturated colors can cause problems and look unprofessional.

  • Highlight Sat.: This parameter controls the saturation in the highlights of your image. You can selectively desaturate the highlights of your image, which can help legalize problem clips, as well as restore some white to the brightest highlights in an image.
    Figure. Image with highlight saturation turned up and down.
  • Shadow Sat.: This parameter controls the saturation in the shadows of your image. You can selectively desaturate the shadows on your image to create deeper looking blacks and to eliminate inappropriate color in the shadows of your images for a more cinematic look.
    Figure. Image with shadow saturation turned up and down.

Master Contrast Controls

Three additional parameters also affect image contrast. For more information on contrast adjustments, see Contrast Adjustment Explained.

Figure. Master contrast parameters.
  • Master Lift: Unlike the primary Shadow contrast slider, the Master Lift parameter only functions as an add or subtract operator, making an overall luma adjustment to the entire image regardless of how the Limit Shadow Adjustments control is set. For more information on lift adjustments, see Adjusting the Black Point with the Shadow Slider.
  • Master Gain: This parameter works exactly the same as the primary Highlight contrast slider, adjusting the white point while leaving the black point at its current level and scaling all the midtones in between the two.
  • Master Gamma: This parameter works exactly the same as the primary Midtone contrast slider, adjusting the distribution of midtones between 0 and 100 percent.