Cinematographer
Open Gate gibt mir maximale Flexibilität. Ich nehme alles auf, was der Sensor liefert, und kann in Post für verschiedene Formate reframen oder stabilisieren.
Camera recording mode utilizing the full sensor area without cropping – captures maximum resolution and field of view, providing flexibility for reframing in post-production, stabilization, and delivering multiple aspect ratios from a single recording.
What is Open Gate?
Open Gate is a camera recording mode that utilizes the entire sensor area without cropping. This maximizes resolution and field of view for post-production flexibility.
Basic Principle
| Aspect | Description |
|---|---|
| Definition | Full sensor format |
| Cropping | None |
| Resolution | Maximum |
| Aspect Ratio | Native sensor ratio |
Typical Sensor Ratios
| Camera | Open Gate Ratio |
|---|---|
| ARRI ALEXA LF | 1.44:1 (4.5K) |
| ARRI ALEXA 35 | 1.55:1 (4.6K) |
| Sony Venice | 1.5:1 (6K) |
| RED Monstro | 1.9:1 (8K) |
Why Open Gate?
| Reason | Description |
|---|---|
| Reframing | Shifting in post |
| Stabilization | Pixel buffer for warp |
| Multi-Format | One take, many outputs |
| Future-Proofing | Capture maximum |
Open Gate vs. Crop Modes
| Aspect | Open Gate | Crop Mode |
|---|---|---|
| Sensor Area | 100% | Less |
| Resolution | Maximum | Reduced |
| Data Amount | Larger | Smaller |
| Flexibility | Highest | Limited |
ARRI ALEXA Modes
| Mode | Aspect Ratio | Pixels |
|---|---|---|
| Open Gate | 1.55:1 | 4608×2968 |
| LF Open Gate | 1.44:1 | 4448×3096 |
| 16:9 | 1.78:1 | Cropped |
| 2.39:1 | 2.39:1 | Anamorphic |
Sony Venice
| Mode | Description |
|---|---|
| 6K Full Frame | 6048×4032 |
| 5.7K 16:9 | Cropped |
| 4K | Further crops |
| Open Gate | Maximum sensor area |
Reframing Workflow
| Step | Description |
|---|---|
| 1 | Record Open Gate |
| 2 | Choose framing in post |
| 3 | Apply masks/cropping |
| 4 | Export to target format |
Stabilization
| Aspect | Description |
|---|---|
| Reserve Pixels | For Warp Stabilizer |
| Crop Factor | 10-20% for stabilization |
| Open Gate Advantage | No visible loss |
| Workflow | Stabilize, then crop |
Multi-Format Delivery
| From Open Gate | Target Format |
|---|---|
| Cinema | 2.39:1 Scope |
| TV | 16:9 (1.78:1) |
| IMAX | 1.43:1 |
| Social | 9:16 vertical |
Anamorphic Open Gate
| Aspect | Description |
|---|---|
| Sensor | Full height |
| Desqueeze | 2x in post |
| Result | Ultra-wide scope |
| Advantage | Maximum resolution |
Data Amount
| Mode | Comparison |
|---|---|
| Open Gate | Largest files |
| 16:9 Crop | ~20% smaller |
| 4K Crop | ~40% smaller |
| Storage | Plan accordingly |
Codecs for Open Gate
| Codec | Suitability |
|---|---|
| ARRIRAW | Optimal for ARRI |
| ProRes 4444 XQ | High-quality |
| X-OCN | Sony Venice |
| R3D | RED Cameras |
Framing Guides
| Type | Description |
|---|---|
| Frame Lines | Display in viewfinder |
| Multiple Guides | 2.39, 16:9, etc. |
| Safe Areas | For all formats |
| Post Decision | Remain flexible |
Challenges
| Challenge | Solution |
|---|---|
| Large Files | More storage |
| Processing | More powerful systems |
| Framing | Use guides |
| Lenses | Cover larger circle |
Lens Requirements
| Aspect | Description |
|---|---|
| Image Circle | Must cover full sensor |
| Large Format | For LF Open Gate |
| Vignetting | Check at edges |
| Quality | To the corners |
Best Practices
| Practice | Reason |
|---|---|
| Plan Framing | Despite flexibility |
| Use Guides | For all target formats |
| Budget Storage | Larger files |
| Inform Post | Coordinate workflow |
Today
Open Gate is standard in high-end film production. The ability to capture maximum sensor information provides filmmakers with unparalleled flexibility for reframing, stabilization, and multi-format delivery. With increasing resolutions and diverse distribution platforms, Open Gate is often the safest choice for future-proofed footage.
From the crafts
Perspectives
Director
Mit Open Gate Material kann ich in der Post entscheiden, ob ich 2.39:1 oder 16:9 will. Die zusätzlichen Pixel sind meine kreative Reserve.
Producer
Open Gate bedeutet größere Dateien, aber auch mehr Optionen. Für Multi-Format-Deliveries ist das oft wirtschaftlicher als mehrere Takes.
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Quiz
1. Was beschreibt „Open Gate / Volles Sensorformat / Vollformat-Modus" am besten?
2. Zu welchem Department gehört „Open Gate / Volles Sensorformat / Vollformat-Modus"?
3. Wie viele verschiedene Fachperspektiven bietet dieser Eintrag?