Sony FS5 Quick Start Manual page 86

SLOG 2 and SLOG 3
• PP7 uses SLOG 2
• PP8 and PP9 use SLOG 3
• SLOG 2 is easier to look at in the LCD monitor (it has more contrast).
• SLOG 3 looks very washed out in the monitor so it is harder to judge
exposure.
• You have more flexibility when correcting SLOG 3 in post production.
• The next section provides detailed information on exposing SLOG.