1. Product Overview
The Godox TT685II-C is a versatile camera flash speedlite designed for Canon cameras, offering advanced features such as E-TTL II autoflash, 2.4G wireless X system, High-Speed Sync (HSS), and Flash Exposure Bracketing (FEB). Its robust design and user-friendly interface make it suitable for various photography scenarios, from professional studio work to on-location shoots.
Figure 1: Godox TT685II-C Camera Flash with included mini stand and protective case.
2. What's Included
- 1x Godox TT685II-C Camera Flash
- 1x Protection Case
- 1x Mini Stand
- 1x Instruction Manual
- 1x Color Filter
- 1x White Diffuser
3. Setup Guide
3.1. Battery Installation
The TT685II-C flash requires 4 AA batteries for operation. To install, locate the battery compartment on the side of the flash unit. Slide the cover open, insert the batteries according to the polarity indicators (+/-), and then close the cover securely.
Figure 2: Open battery compartment showing AA battery slots.
For a visual guide on battery installation, please refer to the video below:
Video 1: Demonstrates uncovering the battery compartment, inserting batteries, and securing the cover (0:49 - 1:01).
3.2. Mounting on Camera
The TT685II-C features a quick-release lock for secure and easy mounting onto your camera's hot shoe. Slide the flash onto the hot shoe, then rotate the quick-release button to firmly secure the connection.
Figure 3: Close-up of the quick-release lock for hot shoe mounting.
For a visual guide on mounting the flash, please refer to the video below:
Video 2: Illustrates installing the TT685II onto a camera and rotating the quick release button to fix the connection (1:15 - 1:21).
3.3. External Power Supply (Optional)
The TT685II-C includes a power port for connecting an external lithium-ion power pack, such as the Godox PB960 (sold separately). This can significantly boost flash performance and reduce recycling times.
Figure 4: TT685II-C connected to an optional PB960 external power pack.
For instructions on connecting an external power supply, please refer to the video below:
Video 3: Demonstrates connecting the TT685II with a PB960 external power pack for shorter recycling times (1:02 - 1:14).
4. Operating Modes & Features
4.1. Control Panel Overview
The TT685II-C features an intuitive control panel with a clear LCD screen and various buttons for easy navigation and setting adjustments.
Figure 5: Detailed view of the TT685II-C control panel.
For a detailed introduction to the control panel, please refer to the video below:
Video 4: Provides an introduction to the control panel and its various buttons (2:37 - 2:50).
4.2. Power On/Off
To turn the flash on or off, simply push the power switch located on the control panel.
Video 5: Shows how to push the power switch to turn the unit on/off (2:51 - 2:54).
4.3. Mode Selection (E-TTL, Manual, Multi)
The TT685II-C supports E-TTL II autoflash, Manual (M) mode, and Multi (Stroboscopic) mode. Short press the MODE button to cycle through these options.
Video 6: Demonstrates selecting E-TTL, Manual, or Multi modes using the MODE button (2:55 - 2:58).
4.4. Flash Exposure Compensation (FEC)
Adjust the flash output to fine-tune exposure. Short press the '+/-' button and turn the dial to set the FEC amount.
Video 7: Shows how to set the FEC amount (2:59 - 3:02).
4.5. TCM Function
The TCM (TTL Convert to Manual) function allows instant conversion from TTL to Manual mode while retaining the flash output settings, enhancing shooting efficiency.
Video 8: Demonstrates using the TCM button to transform from E-TTL to Manual mode (3:03 - 3:05).
4.6. High-Speed Sync (HSS) & Rear-Curtain Sync
The flash supports HSS up to 1/8000s and Rear-Curtain Sync. Short press the SYNC button to select between these options.
Video 9: Shows how to select High Speed Sync or Rear-Curtain Sync (3:06 - 3:10).
4.7. Flash Exposure Bracketing (FEB)
FEB allows the flash to take three shots while automatically changing the output for each shot from -1.3 to +1.3 in 1/3rd stops. Short press the FEB button, turn the dial to set the FEB amount, and short press SET to confirm.
Video 10: Demonstrates setting the FEB amount and its effect on exposure (3:11 - 3:17).
4.8. Wireless Operation (2.4G Wireless X System)
The TT685II-C can function as both a Transmitter (TX) and Receiver (RX) unit within the Godox 2.4G wireless X system, offering a 100m transmission distance.
4.8.1. TX (Transmitter Unit) Connection
To set the flash as a transmitter, short press the Wireless Selection Button to select TX. Ensure the channel and ID match the receiver flashes.
Video 11: Shows how to set the channel and ID for TX mode and trigger a flash (1:25 - 2:00).
4.8.2. RX (Receiver Unit) Connection
To set the flash as a receiver, short press the Wireless Selection Button to select RX. Ensure the channel and ID match the transmitter unit.
Video 12: Shows how to set the channel and ID for RX mode and trigger a flash (2:02 - 2:35).
4.9. Zoom Function
The flash head's zoom can be adjusted from 20-200mm. Short press the ZOOM button, turn the dial to set the focal length, and short press SET to confirm.
Video 13: Demonstrates setting the focal length using the ZOOM button (3:45 - 3:50).
5. Maintenance
To ensure the longevity and optimal performance of your Godox TT685II-C flash, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the flash body. For the flash tube and LCD screen, use a microfiber cloth specifically designed for optics. Avoid using harsh chemicals or abrasive materials.
- Battery Care: Remove batteries if the flash will not be used for an extended period to prevent leakage and damage. Store batteries in a cool, dry place.
- Storage: Store the flash in its protective case in a dry, dust-free environment away from extreme temperatures and direct sunlight.
- Handling: Avoid dropping or subjecting the flash to strong impacts. The flash head and hot shoe mount are particularly sensitive to physical stress.
6. Troubleshooting
If you encounter issues with your Godox TT685II-C flash, please refer to the following common troubleshooting steps:
- Flash Not Firing: Check battery levels, ensure the flash is securely mounted on the hot shoe, and verify that the flash mode and wireless settings are correctly configured.
- Inconsistent Exposure: Review your camera's exposure settings (ISO, aperture, shutter speed) and the flash's FEC settings. Ensure proper wireless communication if using off-camera.
- Wireless Connection Issues: Verify that the channel and ID settings on both the transmitter and receiver units match. Ensure there are no strong interferences in the environment.
- Flash Head Not Tilting/Rotating: Check for any obstructions or debris. Do not force the head if it feels stiff.
6.1. Restoring Factory Settings
If the flash is behaving unexpectedly, you can restore its settings to default. Long press the Function buttons 2 and 3 simultaneously to restore the flash to its factory settings.
Video 14: Demonstrates how to long press Function buttons 2 and 3 to restore settings (4:38 - 4:43).
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | TT685II-C |
| Product Dimensions | 1.81 x 7.48 x 2.52 inches |
| Item Weight | 1.28 pounds |
| Batteries Required | 4 AA batteries |
| Compatible Mountings | Hot Shoe Mount, Godox 2.4G Wireless X System |
| Flash Sync Speed | 1/200s |
8. Warranty and Support
Godox products are designed and manufactured to the highest quality standards. This product is covered by a limited warranty against defects in materials and workmanship from the date of purchase. Please refer to the included warranty card for specific terms and conditions.
For technical support, service, or warranty claims, please contact your authorized Godox dealer or visit the official Godox website for contact information.
