The second camera of a production—for additional angles, reactions, or simultaneous coverage. Saves shooting time and increases editorial flexibility.
What is a B Camera?
The B camera (English: B Camera or Second Camera) is the second camera on a film production, running parallel to the main camera (A camera). It captures alternative angles, reactions, or additional coverage and increases flexibility in editing.
Technical Definition
| Aspect | Details |
|---|---|
| Function | Second camera |
| Position | Different angle than A |
| Coordination | Synchronized with A camera |
| Operator | Dedicated B camera operator |
Camera Hierarchy
| Camera | Function | Priority |
|---|---|---|
| A Camera | Main camera, master | Highest |
| B Camera | Second, additional angles | Medium |
| C Camera | Third, specialty/POV | Low |
| Crash Cam | Hazardous shots | Special |
Tasks of the B Camera
During Dialogue Scenes
| A Camera | B Camera |
|---|---|
| OTS on Person A | OTS on Person B |
| Medium Shot | Close-up |
| Speaking person | Reaction |
During Action Scenes
| A Camera | B Camera |
|---|---|
| Main action | Different angle |
| Wide shot | Tight |
| Movement | Detail |
During Stunt Scenes
| Camera | Task |
|---|---|
| A | Main angle |
| B | Safety angle |
| C+ | Additional coverage |
Advantages of the B Camera
Time Savings
| Aspect | Without B Camera | With B Camera |
|---|---|---|
| Dialogue Scene | Shoot 2× | Shoot 1× |
| Reactions | Separate takes | Simultaneously |
| Coverage | Sequentially | In parallel |
Editing Flexibility
| Advantage | Description |
|---|---|
| Timing | Cut where desired |
| Safety | Alternative in case of problems |
| Selection | Combine best takes |
| Continuity | Same performance |
Equipment Matching
Ideal: Identical Cameras
| Aspect | Advantage |
|---|---|
| Sensor | Same look |
| Codec | Easy post-production |
| Lenses | Interchangeable |
Realistic: Similar Cameras
| A Camera | B Camera | Match Possible? |
|---|---|---|
| ALEXA LF | ALEXA Mini | Yes, good |
| RED Komodo | RED Raptor | Yes, with adjustment |
| ALEXA | Sony Venice | More difficult |
B Camera Setup
Coordination with A Camera
| Aspect | Rule |
|---|---|
| 180° Axis | Both on the same side |
| Lighting | B not to light A |
| Sound | B not in A shot |
| Communication | Coordination essential |
Typical Positions
| Scene | A Position | B Position |
|---|---|---|
| Dialogue | OTS A | OTS B |
| Interview | Frontal | Lateral |
| Action | Wide | Tight |
| Chase | Front | Rear |
When to Use a B Camera?
Sensible
| Situation | Reason |
|---|---|
| Dialogue | Save time |
| Action | Unrepeatable |
| Stunts | Safety |
| Live Events | Not repeatable |
| Improv | Capture best moments |
Less Sensible
| Situation | Reason |
|---|---|
| Complex lighting | Compromises necessary |
| Very tight spaces | Cameras see each other |
| One person alone | Little added value |
Team Structure
With B Camera
| Role | Task |
|---|---|
| DP | Oversee both cameras |
| A Camera Operator | Operate main camera |
| B Camera Operator | Operate B camera |
| A Camera 1st AC | Focus A |
| B Camera 1st AC | Focus B |
Communication
| Signal | Meaning |
|---|---|
| „Rolling A" | A camera is rolling |
| „Rolling B" | B camera is rolling |
| „A & B Speed" | Both ready |
| „Check B" | Check B position |
The Legacy
In Film History
- Silent film: Multiple cameras common
- Classic Hollywood: Single camera dominated
- TV: Multi-camera standard
- Modern: Hybrid depending on the scene
Influence
The B camera enables faster shooting while simultaneously offering more editing options – a compromise between efficiency and control.
Today
| Aspect | Details |
|---|---|
| Frequency | Very common |
| Standard | Almost all major productions |
| Cost | Additional camera + operator |
| Trend | More cameras (C, D...) |
Modern Development
Digital cameras have made multi-camera setups more economical – where film costs used to explode, now only equipment rental is incurred.
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