color grading din color correction primary correction secondary correction power window qualifier 1d lut
Sony's second-generation logarithmic gamma curve offering wide dynamic range.
Definition
S-Log2 is Sony's second-generation Log curve, introduced with the F65 and FS700. It offers good dynamic range with slightly easier handling than S-Log3.
Practical Application
Legacy format, but still available on many Sony cameras. Projects started with FS7/FS5 often use S-Log2. Slightly more contrasty base than S-Log3.
Technical Details
~14 stops of dynamic range. Middle Gray: 32% IRE. Knee point at ~90% output. S-Gamut as companion (or S-Gamut3). Sony provides official LUTs.
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Primary Correction
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Qualifier
Selection tool isolating image areas based on color, luminance, or saturation.
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1D LUT