Problem
The subject is positioned at different distances from the screen between takes, changing spill intensity and making composite continuity difficult.
Solution
Root Cause / Diagnostic:
When talent shifts stance or steps back between takes, inverse-square law changes alter the green spill bounce intensity hitting their shoulders. This variance corrupts color balance and spill-suppression algorithms across scene cuts.
Actionable Fix:
1. Place T-shaped gaffer tape marks on the floor to lock talent foot placement within a strict 5cm tolerance.
2. Lock camera aperture, ISO, and shutter angle in full manual mode to prevent auto-exposure drift between takes.
3. Match vectorscope skin tone line and spill suppressor parameters between take A and take B to ensure continuous composite grading.
Pro Tip:
Document talent distance to cyclorama, lens height, and light dimming percentages on a digital camera log sheet after first take approval.
When talent shifts stance or steps back between takes, inverse-square law changes alter the green spill bounce intensity hitting their shoulders. This variance corrupts color balance and spill-suppression algorithms across scene cuts.
Actionable Fix:
1. Place T-shaped gaffer tape marks on the floor to lock talent foot placement within a strict 5cm tolerance.
2. Lock camera aperture, ISO, and shutter angle in full manual mode to prevent auto-exposure drift between takes.
3. Match vectorscope skin tone line and spill suppressor parameters between take A and take B to ensure continuous composite grading.
Pro Tip:
Document talent distance to cyclorama, lens height, and light dimming percentages on a digital camera log sheet after first take approval.