1. Introduction
The RunCam Nano 4 FPV Camera is a compact and high-performance camera designed for RC FPV racing drones and quadcopters. Featuring an advanced ISP chip, it delivers realistic colors and enhanced low-light night vision. Its super wide-angle 2.1mm lens and 1/3" CMOS sensor provide a 155° Field of View (FOV), capturing expansive and detailed scenes. With 800TVL resolution and WDR (Wide Dynamic Range) video system, it ensures balanced footage in various lighting conditions, including a day/night switch for dynamic imaging even in low light. The camera offers low latency and is PAL/NTSC switchable, providing a real and exciting flight experience.
Key Features:
- Upgraded ISP Chip: Delivers improved color reproduction and low-light performance.
- Super Wide Angle Lens: 2.1mm lens with 155° FOV for broad visual coverage.
- High Definition Display: 800TVL resolution with WDR for clear, balanced footage.
- Day/Night Switch: Adapts to varying light conditions for optimal image quality.
- Low Latency: Ensures a responsive and immersive FPV experience.
- PAL/NTSC Switchable: Compatible with different video systems.
2. What's in the Box
- RunCam Nano 4 Camera Body
- Connection Cable
- Mounting Hardware (screws, adapter)

Image 1: The RunCam Nano 4 FPV Camera, showing its compact size and the pre-attached wiring harness with labels for 3.3-5.5V, GND, and Video connections.
3. Setup and Installation
Follow these steps to properly install your RunCam Nano 4 FPV Camera onto your drone or quadcopter. Ensure all power is disconnected before beginning installation.
3.1. Physical Installation
- Prepare Mounting: If your drone requires a 19x19mm camera, use the provided adapter to fit the 14x14mm Nano 4 camera. Secure the camera within the adapter using the appropriate screws.
- Mount the Camera: Secure the camera (with or without adapter) to your drone's camera mount using the provided screws. Ensure it is firmly in place and the lens is facing forward.

Image 2: The RunCam Nano 4 FPV Camera, highlighting its compact design and the small connector for power and video signals.
3.2. Wiring Connections
The RunCam Nano 4 uses a standard 3-pin connector for power and video. Refer to the labels on the camera's PCB or the main product image for correct pin assignments:
- Red Wire (3.3-5.5V): Connect to a stable DC power source within the specified voltage range. A 5V source is recommended.
- Black Wire (GND): Connect to the ground (negative) terminal of your power source.
- Yellow Wire (Video): Connect to the video input of your FPV video transmitter (VTX).
Ensure all connections are secure and correctly polarized to prevent damage to the camera or other components.
3.3. Video Resources for Installation
Video 1: This video demonstrates the process of replacing a drone camera, which can be helpful for understanding the general installation steps for the RunCam Nano 4. It covers preparing components, installing the camera into its holder, connecting wires, and reassembling the drone. (Note: This video features a different camera model, but the installation principles are similar.)
Video 2: An unboxing and overview of the RunCam Nano2 FPV Camera, a similar model to the Nano 4. This video provides a closer look at the camera's physical features, included accessories, and initial impressions, which can be useful for familiarizing yourself with the product. (Note: This video features the Nano2 model, but many aspects are comparable to the Nano 4.)
4. Operating Instructions
Once installed and powered, the RunCam Nano 4 will automatically output video. No complex configuration is typically required for basic operation.
- Power On: Connect your drone's battery. The camera will power on with the drone's flight controller and VTX.
- Verify Video Feed: Turn on your FPV goggles or monitor and tune to the correct frequency of your VTX. You should see the live video feed from the RunCam Nano 4.
- PAL/NTSC Switching: The camera supports both PAL and NTSC video systems. This setting is usually switchable via a small button or OSD (On-Screen Display) control if available on your flight controller or VTX. Refer to your flight controller/VTX manual for specific instructions on how to switch video formats.
- Adjusting Lens Focus: The lens may have a focusing ring. If the image appears blurry, gently rotate the lens ring until the image is sharp. Secure it with a small amount of thread locker if necessary.
5. Maintenance
Proper maintenance ensures the longevity and optimal performance of your RunCam Nano 4 FPV Camera.
- Lens Cleaning: Regularly clean the camera lens with a soft, lint-free cloth to remove dust, dirt, or smudges that can degrade image quality. Avoid abrasive materials.
- Connection Check: Periodically inspect all wiring connections for any signs of wear, fraying, or loose contacts. Secure any loose connections.
- Environmental Protection: While durable, avoid exposing the camera to excessive moisture, extreme temperatures, or direct impacts.
- Sensor Cleaning (if applicable): If your drone's flight controller has optical flow or laser sensors near the camera, gently wipe them with a clean, dry cloth after any replacement or maintenance to prevent dirt from affecting altitude hold functions.
6. Troubleshooting
If you encounter issues with your RunCam Nano 4, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No video feed | Incorrect wiring; insufficient power; faulty VTX; incorrect FPV goggle frequency. | Check all wiring connections (power, ground, video). Ensure power supply is within 3.3-5.5V. Verify VTX is powered and functioning. Tune FPV goggles to the correct VTX frequency. |
| Dark or poor image quality | Insufficient lighting; lens dirty or out of focus; camera settings (if adjustable). | Ensure adequate lighting. Clean the lens. Adjust lens focus. Check if the camera's Day/Night mode is appropriate for current lighting. |
| Jello effect or vibrations in video | Drone vibrations; loose camera mount. | Ensure the camera is securely mounted. Check for loose drone components or unbalanced propellers that may cause vibrations. |
| Camera not powering on | Incorrect voltage; reversed polarity; damaged cable. | Verify input voltage is within 3.3-5.5V. Double-check wiring for correct polarity (Red to +, Black to -). Inspect the cable for damage. |
7. Specifications
| Feature | Specification |
|---|---|
| Model | RunCam Nano 4 |
| Image Sensor | 1/3" CMOS |
| Horizontal Resolution | 800TVL |
| Lens | 2.1mm(M8) FOV 155° |
| Signal System | NTSC/PAL Switchable |
| S/N Ratio | >50dB |
| Electronic Shutter Speed | Auto |
| Auto Gain Control (AGC) | Auto |
| Min. Illumination | 0.01Lux @1.2F |
| D-WDR | Auto |
| Day/Night | Color |
| Power | DC 3.3-5.5V |
| Current | 160mA @5V/180mA @3.3V |
| Material | ABS |
| Net Weight | 2.9g |
| Dimensions | L14mm*W14mm*H14mm |
8. Warranty and Support
For warranty information and technical support, please refer to the official RunCam website or contact your retailer. Keep your proof of purchase for any warranty claims.





