1. Introduction and Overview
The Flashpoint MF12-DK1 Dental Macro Flash 2-Light Kit is designed for precise and consistent illumination in dental photography. This kit provides two high-quality MF12 flash heads, offering flexible mounting options directly on your camera or via an adjustable bracket. It includes a dedicated Xpro IIS+ transmitter with a specialized Dental Mode for optimized flash output and a one-touch modeling light function. The kit also features durable silicone diffusers to soften light and ensure accurate color temperatures for dental imaging.
Key features include:
- Superior Light Output: Guide number of 16' / 4.9m for clear and precise detail capture.
- Rapid Recycle Time: 0.01 to 1.7 seconds for continuous shooting.
- TTL Compatibility: Seamless integration with Sony cameras using the XPro II TTL wireless flash trigger for automatic exposure control.
- Enhanced Ease of Use: Intuitive OLED display and manual power control from 1/1 to 1/128.
- Extended Battery Life: Integrated rechargeable lithium battery for prolonged shooting sessions.
2. What's in the Box
Carefully unpack the contents of your Flashpoint MF12-DK1 kit and verify all items are present:
- 2x Flashpoint MF12 Dental Macro Flash Units
- 1x Flashpoint Xpro IIS+ Transmitter
- 2x Silicone Diffusers
- 2x Cold Shoe Adapters
- 1x Macro Flash Bracket with adjustable arms
- 1x Main Lens Adapter Ring
- 8x Step-up/Step-down Adapter Rings (e.g., 49mm, 52mm, 55mm, 58mm, 62mm, 67mm, 72mm, 77mm)
- 2x USB-C Charging Cables
- 1x Carrying Case
Figure 2.1: All components of the MF12-DK1 kit, including two flash units, transmitter, diffusers, bracket, adapter rings, and cables.
Figure 2.2: The MF12-DK1 kit components stored securely within the provided carrying case.
3. Setup
3.1 Charging the MF12 Flash Units
Connect the provided USB-C charging cables to the MF12 flash units and a compatible USB power source. The charging indicator will show the charging status. Ensure both units are fully charged before first use.
3.2 Attaching Lens Adapter Rings
Select the appropriate step-up/step-down adapter ring that matches the filter thread size of your camera lens. Screw this adapter ring onto your lens. Then, attach the main lens adapter ring to the selected step-up/step-down ring.
3.3 Mounting the Flash Units
The MF12 flash units can be mounted in two ways:
- Directly on Camera (via Cold Shoe Adapters): Attach the cold shoe adapters to the bottom of the MF12 flash units. Slide these into your camera's hot shoe or a separate cold shoe mount. This method is less common for dental macro photography due to limited positioning.
- On the Macro Flash Bracket: This is the recommended method for dental photography. Attach the MF12 flash units to the ends of the adjustable arms on the macro flash bracket. The bracket then mounts onto the main lens adapter ring. Adjust the arms to position the flashes for optimal lighting angles and distances. The flash heads can rotate up to 180 degrees on the bracket for precise light direction.
3.4 Attaching Silicone Diffusers
Gently slide the silicone diffusers over the front of the MF12 flash heads. These diffusers soften the light, reducing harsh shadows and creating a more natural illumination, which is crucial for accurate dental imaging.
3.5 Connecting the Xpro IIS+ Transmitter
Slide the Xpro IIS+ transmitter onto your camera's hot shoe. Ensure it is securely seated. Power on the transmitter and the MF12 flash units. The transmitter will automatically connect to the flash units.
Figure 3.1: Overview of the kit components and a camera, demonstrating how the system is assembled.
Figure 3.2: The MF12 flash units positioned on the macro bracket, ready for use with a camera.
4. Operating Instructions
4.1 Powering On/Off
To power on the MF12 flash units and the Xpro IIS+ transmitter, press and hold their respective power buttons until the display illuminates. To power off, press and hold the power button again until the display turns off.
4.2 Using the Xpro IIS+ Transmitter
- Dental Mode: The Xpro IIS+ features a specialized Dental Mode. Activate this mode via the transmitter's menu to automatically adjust flash output for optimal dental photography, minimizing interference and simplifying settings.
- Modeling Light: A one-touch button on the transmitter activates the modeling light on the MF12 flash units. This allows you to preview the lighting effect on your subject before capturing the shot, aiding in precise light placement.
- TTL Compatibility: The transmitter supports TTL (Through-The-Lens) metering, providing automatic and accurate exposure control when used with compatible Sony cameras.
4.3 Adjusting Flash Output
The MF12 flash units offer manual power control ranging from 1/1 (full power) to 1/128. Use the controls on the flash unit or the Xpro IIS+ transmitter to adjust the power output according to your lighting requirements. The intuitive OLED display on the transmitter facilitates easy navigation and adjustment of settings.
4.4 Recycle Time and Battery Life
The MF12 flash units boast a rapid recycle time of 0.01 to 1.7 seconds, allowing for quick successive shots. The integrated rechargeable lithium battery provides extended battery life, ensuring sufficient power for comprehensive dental examinations without frequent recharging.
Figure 4.1: Example of the MF12-DK1 kit in use for dental photography, demonstrating practical application.
5. Maintenance
5.1 Cleaning
- Flash Units and Transmitter: Use a soft, dry cloth to wipe the exterior surfaces. For stubborn marks, a slightly damp cloth with mild soap can be used, followed by a dry wipe. Avoid abrasive cleaners or solvents.
- Silicone Diffusers: These can be washed with mild soap and water. Ensure they are completely dry before reattaching to the flash units.
- Lens Adapter Rings: Clean with a lens cleaning cloth to avoid scratching.
5.2 Battery Care
- Recharge the integrated lithium batteries regularly, even if the units are not in frequent use, to maintain battery health.
- Avoid fully discharging the batteries before recharging.
- Store the units in a cool, dry place when not in use.
5.3 Storage
When not in use, store the Flashpoint MF12-DK1 kit in its provided carrying case to protect it from dust, moisture, and physical damage. Ensure all components are dry before storage.
6. Troubleshooting
If you encounter issues with your Flashpoint MF12-DK1 kit, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Flash units not firing | Low battery on flash units or transmitter; Incorrect wireless settings; Flash units not powered on; Transmitter not securely mounted. | Charge batteries; Check wireless channel/ID settings; Power on all devices; Ensure transmitter is fully seated in hot shoe. |
| Inconsistent exposure | Incorrect flash power setting; TTL mode not active or miscommunicating; Subject distance changed significantly. | Adjust flash power manually or ensure TTL is active; Verify Dental Mode settings; Maintain consistent subject distance or adjust power accordingly. |
| Modeling light not working | Flash unit not powered on; Feature disabled in settings; Low battery. | Ensure flash unit is on; Check transmitter settings; Charge flash unit battery. |
| Units not connecting wirelessly | Interference; Incorrect group/channel settings; Distance too far. | Change wireless channel/ID; Reduce distance between transmitter and flashes. |
If the problem persists after attempting these solutions, please contact Flashpoint customer support for further assistance.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | MF12-DK1 |
| Item Weight | 4.65 pounds (Kit) |
| Flash Type | Macro Flash |
| Guide Number | 16' / 4.9m |
| Recycle Time | 0.01 to 1.7 seconds |
| Flash Sync Speed | 1/250 |
| Power Control | 1/1 to 1/128 |
| Battery Type | Integrated Rechargeable Lithium |
| Compatible Mountings | Sony (with XPro II-S transmitter) |
| Country of Origin | China |
8. Warranty and Support
Flashpoint products are manufactured to high quality standards and are warranted against defects in materials and workmanship. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Flashpoint website.
For technical support, troubleshooting assistance, or service inquiries, please contact Flashpoint customer support. Contact information can typically be found on the Flashpoint website or in your product packaging.
