ACE Color Correction & Adjustment 3 — Questions and Answers
Question 1: Which Camera Raw slider controls the recovery of highlight detail that appears blown out to pure white?
- Highlights (Correct answer)
- Whites
- Exposure
- Clarity
Correct answer: Highlights
The Highlights slider in Camera Raw specifically recovers blown-out highlight detail by pulling luminance back from the upper tonal range.
Question 2: In Photoshop's Levels dialog, what is the purpose of the middle (gray) input slider?
- Adjusts gamma/midpoint without clipping shadows or highlights (Correct answer)
- Sets the white point
- Sets the black point
- Controls output brightness
Correct answer: Adjusts gamma/midpoint without clipping shadows or highlights
The middle Levels input slider adjusts gamma, redistributing midtones lighter or darker without clipping the endpoints.
Question 3: A Vibrance adjustment differs from Saturation because it:
- Boosts less-saturated colors more and protects skin tones (Correct answer)
- Only affects the red channel
- Applies a hard saturation cap at 100%
- Works only in Lab color mode
Correct answer: Boosts less-saturated colors more and protects skin tones
Vibrance uses a smart algorithm that boosts muted colors proportionally more while protecting already-saturated hues and skin tones.
Question 4: What is the function of the 'Set Gray Point' eyedropper in the Levels or Curves dialog?
- Neutralizes a color cast by making the sampled pixel pure neutral gray (Correct answer)
- Sets exposure to 18% gray
- Converts image to grayscale
- Samples the average luminosity
Correct answer: Neutralizes a color cast by making the sampled pixel pure neutral gray
Clicking with the gray-point eyedropper forces the sampled pixel to neutral gray, automatically removing any color cast.
Question 5: When working with a 16-bit image, which statement about tonal adjustments is most accurate?
- More headroom for aggressive adjustments with less banding than 8-bit (Correct answer)
- Adjustments are applied twice as fast
- Color range is identical to 8-bit but files are smaller
- Curves adjustments are not available
Correct answer: More headroom for aggressive adjustments with less banding than 8-bit
16-bit images store 65,536 tonal values per channel, providing much more data to redistribute before posterization or banding occurs.
Question 6: Which panel in Photoshop shows a live histogram that updates as you make adjustments, helping you avoid clipping?
- Histogram panel (Correct answer)
- Info panel
- Color panel
- Layers panel
Correct answer: Histogram panel
The Histogram panel displays a real-time view of the tonal distribution and updates dynamically during adjustments to indicate highlight or shadow clipping.
Question 7: In the Selective Color adjustment, the 'Relative' method differs from 'Absolute' because it:
- Adjusts color as a percentage of the existing ink amount rather than a fixed value (Correct answer)
- Only modifies primary colors
- Ignores neutral grays
- Applies adjustments to all color channels equally
Correct answer: Adjusts color as a percentage of the existing ink amount rather than a fixed value
Relative mode scales the adjustment proportionally to the current ink level, so a 10% increase adds 10% of whatever cyan already exists.
ACE Color Correction & Adjustment 3
Which Camera Raw slider controls the recovery of highlight detail that appears blown out to pure white?