1. Introduction
The Meike MK-14EXT LED E-TTL Macro Ring Flash is designed to provide consistent and shadow-reducing illumination for macro photography. It features E-TTL II automatic output control, manual power adjustment, and flexible lighting options for various photographic needs. This manual provides instructions for its proper installation, operation, and maintenance.
2. Package Contents
Verify that all items are present in the package:
- MK-14EXT LED Macro TTL Ring Flash Unit
- Control Unit
- 7 Adapter Rings (52mm, 55mm, 58mm, 62mm, 67mm, 72mm, 77mm)
- Protecting Bag
- Pedestal
- User Manual (this document)
- Warranty Card
3. Setup
3.1 Battery Installation
The MK-14EXT requires four AA alkaline or AA Ni-MH batteries. Ensure correct polarity when inserting batteries.
Image: The control unit with its battery compartment open, illustrating the correct insertion of four AA batteries.
3.2 Attaching Adapter Ring
Select the appropriate adapter ring that matches the filter thread size of your camera lens. Screw the adapter ring onto the front of your lens.
Image: A set of seven adapter rings, each designed for a different lens filter thread size.
3.3 Mounting the Flash Unit
- Slide the ring flash unit onto the attached adapter ring on your lens until it clicks into place.
- Mount the control unit onto your camera's hot shoe.
- Secure the control unit by rotating the fast lock mechanism.
Image: Detailed view of the flash unit and control unit components, including mounting points and controls.
4. Operating Instructions
4.1 Power On/Off
Press the 'ON/OFF' button on the control unit to power the flash on or off. The display screen will illuminate upon activation.
4.2 Flash Modes
The MK-14EXT supports various flash modes:
- TTL Mode: Automatic output power adjustment based on the camera's light evaluation system.
- Manual Mode: Allows for precise manual control over flash output.
- AB Lamp Brightness Ratio Mode: Adjusts the brightness ratio between the left and right flash tubes.
- Multi Mode (Repeating Flash): Fires multiple flashes during a single exposure.
4.3 E-TTL II Function
In E-TTL II mode, the flash automatically adjusts its output power to suit the current environment, working in conjunction with the camera's pre-flash and light evaluation system for accurate exposure.
Image: Explanation of the E-TTL II automatic flash system.
4.4 Manual Power Adjustment
The flash offers 8 power levels, with each level providing 3 fine-tuning adjustments for precise brightness control.
Image: Visual representation of manual power adjustment and flash tube selection options.
4.5 Left and Right Flash Function
You can choose to fire both flash tubes, only the left tube, or only the right tube. This allows for creating a three-dimensional effect and controlling shadow direction in your macro shots.
4.6 Optical Transmission and Multiple Flash
The MK-14EXT supports optical transmission for master and slave modes, enabling it to trigger or be triggered by other compatible flash units for complex lighting setups.
Image: Depiction of master/slave flash setup and power-saving mode.
4.7 AF Assist Lamp
The built-in AF assist lamp helps the camera achieve focus in low-light conditions.
4.8 Power-Saving Mode
To conserve battery life, the flash unit will enter sleep mode after 60 seconds of inactivity. Press any button to wake it up.
5. Maintenance
- Keep the flash unit clean and dry. Use a soft, dry cloth to wipe surfaces.
- Avoid exposing the unit to extreme temperatures, humidity, or direct sunlight.
- If the flash will not be used for an extended period, remove the batteries to prevent leakage.
- Do not attempt to disassemble or repair the unit yourself, as this may void the warranty.
6. Troubleshooting
6.1 Flash Not Firing
- Check battery levels and ensure they are inserted correctly.
- Verify the flash unit is securely mounted on the camera's hot shoe.
- Ensure the flash is powered on and not in sleep mode.
- Check camera settings to ensure external flash is enabled and compatible.
6.2 Inconsistent Flash Output
- Ensure batteries have sufficient charge. Low battery power can affect consistency.
- Check for any obstructions between the flash and the subject.
- If in TTL mode, ensure the camera's metering system is functioning correctly.
- If in Manual mode, verify the power settings.
7. Specifications
| Feature | Specification |
|---|---|
| Guide Number | 14 (ISO100, in meters/feet) |
| Color Temperature | 5500K |
| Flash Duration | 1/200 - 1/20000 seconds |
| Recycle Time | Approx. 0.1 - 5 seconds (approx. 3 seconds with AA alkaline batteries) |
| Flash Times | 100 - 800 times (with AA alkaline batteries) |
| Effective Distance | Approx. 20cm - 5m |
| Flash Coverage | 80 degrees in either direction |
| Firing Configuration | Two flash tubes (can be fired together or single) |
| Flash Ratio Control | 1:8 ~ 1:1 ~ 8 in 1/2-stop increments |
| Flash Exposure Compensation | Manual, FBE:lN 1/3-stop increments |
| Focusing Lamp Coverage | Approx. 40 degrees top/bottom, 45 degrees left/right |
| Focusing Lamp On Time | Approx. 20 seconds |
| Power Supply | 4x AA alkaline batteries or AA Ni-MH batteries |
| Max Sync Speed | 1/320s |
| Compatible Cameras | All Canon DSLR Cameras (e.g., 5D Mark II/III, 7D, 60D, 600D, 550D, 500D, 1000D, 1100D, 5D, 50D, 40D, 450D, 650D) |
| Dimensions (Ring Flash Only) | 191mm x 77mm x 60mm |
| Weight (Ring Flash Only) | 398g (approx. 1.32 lbs) |
8. Warranty and Support
8.1 Warranty Information
A warranty card is included with your product. Please refer to this card for detailed information regarding warranty coverage, terms, and conditions. Keep your proof of purchase for warranty claims.
8.2 Customer Support
For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact Meike customer support. Contact information can typically be found on the manufacturer's official website or on the warranty card.
