1. Introduction
This manual provides detailed instructions for the proper use and maintenance of your AstrHori XH-2 Camera Light Meter. Please read this manual thoroughly before operating the device to ensure optimal performance and longevity.
The AstrHori XH-2 is a compact and accurate light meter designed for photographers, particularly those using cameras without built-in metering or seeking enhanced precision. It features an upgraded metering module for accurate light readings and a cold shoe mount for compatibility with various camera types.
2. Product Overview
2.1 Components
- AstrHori XH-2 Light Meter
- USB-C Charging Cable
- Instruction Manual (this document)
2.2 Device Features
- Upgraded Metering Module: Provides enhanced accuracy for light measurement.
- Wide Shutter Speed Range: Supports 40 stops for precise exposure control.
- Automatic Power Management: Automatically turns off after approximately 3 hours of inactivity. Enters low-power dormant mode after 25 seconds of no operation.
- Cold Shoe Mount: Compatible with various camera models, including older Leicas, rangefinder cameras, and SLRs. Can also be used handheld.
- 0.66" OLED Display: Clear and easy-to-read screen.
- 30° Average Metering: Single metering time is approximately 0.5 seconds.
- Convex Lens Design: Enhances light gathering, with a stepped light inlet to prevent reflection.
- USB-C Charging: Universal Type-C port for convenient charging.
2.3 Device Layout
The device features a 0.66" OLED display on the front, an adjustment dial for settings, and a cold shoe mount on the bottom for attachment to cameras. A USB-C port is located on the bottom for charging.
3. Setup
3.1 Charging the Device
- Locate the USB-C charging port on the bottom of the light meter.
- Connect the provided USB-C cable to the light meter and a compatible USB power source (e.g., computer, wall adapter).
- A full charge takes approximately 30 minutes. The power display on the OLED screen will indicate charging status.
The device has a built-in 80 mAh lithium battery.
3.2 Mounting on a Camera
- Identify the cold shoe mount on your camera.
- Slide the AstrHori XH-2's cold shoe base into your camera's cold shoe.
- Ensure the light meter is securely seated. The design allows for a snug fit without electrical contact, making it suitable for various camera types.
The light meter can also be used handheld if preferred.
4. Operating Instructions
4.1 Power On/Off and Activation
- To activate the light meter from dormant mode, click the metering button.
- The device will automatically enter a low-power dormant mode if there is no operation within 25 seconds.
- The device will automatically turn off after approximately 3 hours of continuous dormancy.
4.2 Basic Metering
The XH-2 uses 30° average metering. A single metering takes approximately 0.5 seconds.
4.3 Adjusting Parameters
Use the adjustment dial to change settings. The OLED screen displays the current parameters.
- ISO Range: ISO 5 - ISO 6400
- Aperture Range: F1 - F32
- Shutter Speed Range: 1/8000s - 32s
4.4 Mode Selection
Press the button to select different modes and settings:
- EV/EC (Exposure Value Compensation): Double-click the button and press for approximately 3.5 seconds the second time to enter EC setting.
- ISO: Double-click the button and press for approximately 0.5 seconds the second time to enter ISO setting.
- A/T (Aperture Priority/Shutter Priority): Double-click to switch between Aperture Priority (A mode) and Shutter Priority (T mode).
To lock the settings when real-time metering is active, press the button once. Long press the button for 0.5 seconds to perform a specific action (context-dependent, usually power-related or menu access).
4.5 Screen Display Information
The screen provides real-time feedback on exposure settings, battery level, and selected modes.
5. Specifications
| Feature | Specification |
|---|---|
| Model Number | AstrHori XH-2 |
| Material | Copper (likely referring to internal components or casing material) |
| Mount Type | Cold Shoe |
| Weight | Approximately 63g (2.22 ounces) |
| Dimensions | 43 x 27 x 23 mm (1.69 x 1.06 x 0.91 inches) |
| Battery | Built-in 80 mAh Lithium-Ion battery |
| Display Screen | 0.66" OLED |
| Metering Angle | 30° Average Metering |
| Metering Type | Real-time metering (A/T modes) |
| Charging Port | Type-C |
| ISO Range | ISO 5 - ISO 6400 |
| Aperture Range | F1 - F32 |
| Shutter Speed Range | 1/8000s - 32s |
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the light meter. Avoid using harsh chemicals or abrasive materials.
- Lens Care: Keep the metering lens clean and free of dust or smudges to ensure accurate readings. Use a lens cleaning cloth if necessary.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
- Battery Care: Charge the battery regularly, even if the device is not used frequently, to maintain battery health. Avoid fully discharging the battery for extended periods.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Low or depleted battery. | Charge the device using the provided USB-C cable. |
| Inaccurate metering readings. | Metering lens is dirty or obstructed. Incorrect settings (ISO, aperture, shutter speed). | Clean the metering lens. Verify that ISO, aperture, and shutter speed settings match your camera and desired exposure. Ensure the metering angle is appropriate for the scene. |
| Device enters dormant mode too quickly. | Normal operation (25 seconds inactivity). | Click the metering button to reactivate the device. This is a power-saving feature. |
| Difficulty changing settings. | Incorrect button press sequence or timing. | Refer to Section 4.4 "Mode Selection" for correct button press sequences for EV/EC, ISO, and A/T mode changes. |
8. Warranty and Support
For warranty information and technical support, please refer to the official AstrHori website or contact your local distributor. Keep your purchase receipt as proof of purchase for warranty claims.
You can visit the AstrHori Store for more information: AstrHori Store