1. Introduction
The FEELWORLD S55 is a compact and lightweight 5.5-inch field monitor designed to enhance your DSLR or mirrorless camera shooting experience. Featuring a 1280x720 IPS display, 4K HDMI input/loop-out, and a convenient 8.4V DC output to power your camera, the S55 provides essential monitoring tools for professional videography and photography. Its super lightweight design and versatile tilt arm make it an ideal companion for gimbals and camera rigs.


2. Package Contents
Please check the package contents upon opening to ensure all items are present:
- FEELWORLD S55 Monitor
- Packing Box
- Micro HDMI Cable
- Sun Shade
- Tilt Arm
- Operation Manual

3. Product Overview
The FEELWORLD S55 monitor features a robust design with essential ports for connectivity and power. Familiarize yourself with the input/output interfaces and battery plate for optimal use.

Ports and Connectors:
- HDMI IN: Connect your camera's HDMI output to this port.
- HDMI OUT: Loop-out HDMI signal to another monitor or device.
- DC IN 12V: Power input for the monitor.
- DC OUT 8.4V: Power output to supply power to your camera (requires optional dummy battery adapter cable).
- USB Upgrade: For firmware updates.
- 3.5mm Ear Phone Slot: For audio monitoring.
Battery Plate:
The S55 features a flexible dual-purpose battery plate, compatible with two different types of lithium batteries: F970 and LP-E6. This provides extended working conditions for cameramen.
4. Setup
4.1 Mounting the Monitor
- Attach the provided Tilt Arm to the 1/4-20 thread point on the bottom of the monitor.
- Mount the Tilt Arm onto your camera's hot shoe or cold shoe mount.
- Adjust the monitor's angle using the Tilt Arm. The arm allows for 360° rotation, enabling quick and smooth monitor adjustments.
- The Tilt Arm also includes an extra shoe mount for attaching accessories like microphones or video lights.

4.2 Powering the Monitor
The S55 monitor can be powered in two ways:
- DC Input: Connect a compatible DC 7-24V power adapter to the DC IN 12V port.
- Battery Power: Attach a compatible F970 or LP-E6 battery to the dual-purpose battery plate on the back of the monitor.
4.3 Connecting to a Camera
- Using the provided Micro HDMI Cable, connect one end to your camera's HDMI output port.
- Connect the other end of the Micro HDMI Cable to the HDMI IN port on the FEELWORLD S55 monitor.
- If you wish to loop out the video signal to another monitor, connect an HDMI cable from the HDMI OUT port of the S55 to your secondary monitor.
5. Operation
5.1 Basic Controls
The monitor typically features buttons for power, menu navigation, and function shortcuts. Refer to the physical buttons on your device for specific controls. Generally, a power button will turn the unit on/off, and a menu button will access display settings and advanced features.
5.2 Key Features
The FEELWORLD S55 is equipped with a range of professional monitoring features to assist with accurate focus, exposure, and framing:
- Histogram: Visual representation of tonal distribution.
- Peaking Filter: Highlights sharp edges to assist with manual focusing.
- False Colors: Helps set proper exposure by displaying different exposure levels in distinct colors.
- Exposure (Zebras): Indicates overexposed areas.
- Nine Grid: Assists with composition using the rule of thirds.
- Embedded Audio: Monitors audio levels.
- Pixel-to-Pixel: Displays the image at its native resolution without scaling.
- Check Field: Helps calibrate color.
- Image Flip: Flips the image horizontally or vertically.
- Anamorphic Mode: De-squeezes anamorphic footage.
- Image Freeze: Freezes the current frame.
- Zoom-In: Magnifies a portion of the image for critical focus.

5.3 Real-time Camera Power Supply
The S55 monitor can supply power to your DSLR or mirrorless camera, extending its runtime. Connect an optional dummy battery adapter cable from the monitor's DC OUT 8.4V port to your camera's battery compartment.

6. Maintenance
To ensure the longevity and optimal performance of your FEELWORLD S55 monitor, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the monitor's body. For the screen, use a microfiber cloth specifically designed for electronics and a gentle screen cleaning solution if necessary. Avoid harsh chemicals or abrasive materials.
- Storage: When not in use, store the monitor in a cool, dry place, away from direct sunlight and extreme temperatures. Use the original packing box or a protective case to prevent dust and physical damage.
- Handling: Avoid dropping the monitor or subjecting it to strong impacts. Do not expose it to water or high humidity.
7. Troubleshooting
If you encounter issues with your FEELWORLD S55 monitor, try the following basic troubleshooting steps:
- No Power: Ensure the battery is charged and correctly inserted, or that the DC power adapter is securely connected and providing adequate power (DC 7-24V).
- No Video Signal: Check all HDMI cable connections between the camera and the monitor. Ensure the camera's HDMI output is enabled and set to a compatible resolution (refer to specifications). Try a different HDMI cable.
- Image Quality Issues: Verify camera settings for resolution and frame rate. Check monitor settings for brightness, contrast, and color.
- Audio Issues: Ensure headphones are properly connected to the 3.5mm jack. Check camera audio output settings.
If problems persist, consult the full operation manual or contact customer support.
8. Specifications
Detailed technical specifications for the FEELWORLD S55 5.5 Inch DSLR Camera Field Monitor:
| Feature | Specification |
|---|---|
| Description | 5.5" 4K HDMI On-camera Monitor for Stabilizer Gimbal |
| Model | S55 |
| Screen size | 5.5" IPS |
| Display Colors | 16.7M (8 bit) |
| Color Gamut | 70% NTSC |
| Resolution | 1280 x 720 pixels |
| Dot pitch | 0.0945(H) x 0.0315(W) mm |
| Aspect Ratio | 16:9 |
| Brightness | 500cd/m2 |
| Contrast | 1000:1 |
| Backlight | LED |
| Viewing Angle | 80°/80°(L/R) 80°/80°(U/D) |
| Input | HDMI |
| Output | HDMI, DC OUT 8.4V (Barrel 5.5mm outer, 2.1mm inner; Power DSLR or mirrorless camera) |
| Response Time | 35 (Max.)(Tr+Td) ms |
| Audio | Stereo Headphone |
| HDMI Support Format | 480i/576i/480p/576p 1080i (60/59.94/50) 720p (60/59.94/50/30/29.97/25/24/23.98) 1080p (60/59.94/50/30/29.97/25/24/24sF/23.98/23.98sF) 4K UHD 3840×2160p (30/29.97/25/24/23.98Hz), 4096×2160p (24Hz) |
| Power Consumption | ≤8W |
| Input Voltage | DC7-24V |
| Power Connector | DC |
| Battery Plate | F970/LP-E6 Dual-purpose Battery Plate |
| Operating Temperature | -20℃ ~ 55℃ |
| Storage Temperature | -30℃ ~ 65℃ |
| Install Way | 1/4-20 thread points (bottom, right) |
| Unit Size | 142L x 87.2H x 27.5D (mm) |
| Unit Weight | 175g |
| Standard Accessory | Micro HDMI Cable, Tilt Cable, Sunshade, Manual |

9. User Tips
- Battery Not Included: Please note that the monitor does not include its battery. It supports F970/LP-E6 dual-purpose battery plates, allowing you to use compatible batteries (sold separately) or power it via DC input.
- Sun Shade for Outdoor Use: Always use the included sun shade when shooting outdoors to improve screen visibility and reduce glare.
- Firmware Updates: Periodically check the manufacturer's website for firmware updates to ensure your monitor has the latest features and bug fixes. Use the USB Upgrade port for this purpose.
- Camera Compatibility: The S55 monitor is widely compatible with various DSLR and mirrorless cameras from brands like Sony, Canon, Nikon, Panasonic, FUJIFILM, Leica, OLYMPUS, and PENTAX. Ensure your camera has an HDMI output.

10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the warranty card included in your package or contact the seller/manufacturer directly. Keep your proof of purchase for warranty claims.





