Primary Corrections: Exposure, White Balance, and Contrast
Primary corrections are where you fix what is wrong with your footage. Nothing more, nothing less. Before you add a cinematic look or make your sunset pop, you need a clean baseline.
Every professional colorist does primaries first. Every single time. Here is how to do it right with drone footage.
The Three Pillars
Primary corrections break down into three operations:
- Exposure — getting brightness levels correct
- White balance — removing color casts so neutral objects look neutral
- Contrast — setting the tonal range from shadows to highlights
These corrections affect the entire image uniformly. You are not isolating the sky or targeting a specific building. You are establishing a technically sound starting point.
Exposure: Lift, Gamma, and Gain
Forget the single “exposure” slider. It is a blunt instrument. Instead, learn the three controls professionals rely on: Lift (shadows), Gamma (midtones), and Gain (highlights).
Here is a common scenario with drone footage. You are flying over a forest at golden hour. Your D-Log footage looks flat and dark because log profiles deliberately underexpose to protect dynamic range. Pull up Gain slightly to open those highlights, then nudge Gamma to bring midtones forward.
Always monitor your waveform when adjusting exposure. Your signal should sit between 0 and 100 IRE for standard delivery. Footage above 100 clips to pure white. Footage below 0 crushes to pure black. Once those details are gone, they are gone for good.
Drone footage presents specific exposure challenges. Shadows tend to block up badly in aerial shots because you are shooting from an elevated angle looking down at terrain already in shadow. D-Log helps capture this range, but you still need to recover those shadows carefully. Pull Lift up too much and you introduce noise hiding in the blacks.
Skies are the opposite problem. That bright patch of blue can clip instantly if you push Gain too high. Protect your highlights first, then work backward into the midtones and shadows.
White Balance: Temperature and Tint
White balance has two controls: Temperature (warm versus cool, measured in Kelvin) and Tint (green versus magenta).
The goal: find something in your shot that should be gray or white. A concrete pad, a white roof, a cloud, even overcast sky. Make it actually gray or white. When neutral objects look neutral, everything else falls into place.
Use your RGB Parade to verify. The red, green, and blue waveforms should overlap cleanly in neutral areas. If your red channel rides higher than blue across the frame, your image is too warm. If green dominates, you have a green cast.
Atmospheric haze is the enemy of accurate white balance in drone footage. When you are shooting at altitude, you are looking through hundreds of feet of air that scatters blue light. Your footage will almost always skew cool and slightly desaturated. Do not overcorrect this in primaries. That haze is real. Just get close to neutral.
Contrast: The Right Way
Most editors reach for the contrast slider first. Do not. That single slider applies a mathematical curve that simultaneously pushes highlights up and pulls shadows down, treating all shadows and highlights identically.
Instead, create contrast using Lift and Gain spread. Lower your Lift slightly while raising your Gain slightly. This expands the distance between your darkest darks and brightest brights, and you maintain independent control over exactly how much each end moves.
Footage shot in flat D-Log often lacks contrast. Pull Lift down from 10 to 5. Push Gain up from 90 to 95. That is your contrast, applied manually with precision.
The contrast slider crushes blacks because it does not discriminate. It pulls down everything below middle gray, including shadow detail you might want to preserve. Manual Lift/Gain adjustments let you protect specific tonal ranges while still achieving the contrast you need.
Drone footage often benefits from gentler contrast than ground-level shots. Aerial perspectives naturally have lower contrast because of atmospheric perspective. Distant objects appear lighter and less saturated. Fight too hard against this and your grade will look heavy-handed.
The Toggle Test
Build this habit: toggle your corrections on and off constantly. Compare your graded footage against the raw file throughout the process.
This prevents overcorrection. You will notice immediately if you pushed things too far because the raw footage will suddenly look better than your grade. Set a keyboard shortcut for bypassing your color node or adjustment layer. Use it every thirty seconds.
What Proper Primaries Look Like
When you have finished primary corrections, your footage should look boring. That is the point. It should look like reality, a clean, accurate representation of what you saw from the drone pad. Colors are neutral. Exposure is even. Contrast matches the scene’s natural lighting.
If someone looks at your primaries and says “nice grade,” you have probably gone too far. The magic happens in creative looks. Primaries just set the stage.
Move on to creative grading only when your footage is technically correct. Every creative choice you make later depends on this foundation being solid.