Introduction
This manual provides detailed instructions for the safe and effective use of your Godox TT685II-S Speedlight flash. The TT685II-S is designed for Sony cameras, offering advanced features such as TTL autoflash, High-Speed Sync (HSS), and a built-in 2.4G wireless X system. Please read this manual thoroughly before operation to ensure optimal performance and to prevent damage.
Image: The Godox TT685II-S flash unit.
Important Safety Information
- Do not disassemble or modify the flash unit. Internal high-voltage components can cause electric shock.
- Keep the unit dry. Do not expose to rain or moisture.
- Do not touch the flash tube after firing to avoid burns.
- Use only recommended batteries (4x AA alkaline or Ni-MH). Incorrect battery types or improper insertion can cause leakage, overheating, or explosion.
- Keep out of reach of children.
Package Contents
Verify that all items are present in your package:
- 1 x Godox TT685II-S Flash Unit
- 1 x Mini Stand
- 1 x Protective Case
- 1 x Instruction Manual
Getting Started
Battery Installation
The Godox TT685II-S requires four (4) AA batteries. Ensure correct polarity when inserting.
- Open the battery compartment cover on the side of the flash unit.
- Insert four AA batteries according to the polarity indicators (+/-).
- Close the battery compartment cover securely.
Image: Battery compartment for AA batteries.
Mounting to Camera
The TT685II-S is designed to mount onto the hot shoe of compatible Sony cameras.
- Slide the flash unit onto the camera's hot shoe until it clicks into place.
- Rotate the locking ring clockwise to secure the flash firmly.
- To remove, rotate the locking ring counter-clockwise and slide the flash off.
Image: Godox TT685II-S mounted on a camera.
Basic Operation
Power On/Off
Press the power button to turn the flash on or off. The LCD screen will illuminate upon power-on.
Flash Modes
The TT685II-S supports various flash modes:
- TTL Autoflash Mode: Automatically sets flash output for correct exposure.
- Manual Flash Mode: Allows manual adjustment of flash output from 1/1 to 1/128 power.
- Multi Flash Mode (Stroboscopic): Fires a series of rapid flashes to capture multiple movements in a single exposure.
High-Speed Sync (HSS)
The flash supports High-Speed Sync up to 1/8000s, allowing you to use wider apertures in bright conditions or freeze fast motion.
Advanced Features
TCM Instant Conversion
The TCM (TTL Converted to Manual) function allows for quick conversion of a TTL exposure value into a manual power setting. This helps maintain consistent light output when switching from automatic to manual control.
Image: Flash display showing TCM function.
FEB Function (Flash Exposure Bracketing)
Short press the FEB button and turn the dial to set the FEB amount. This function allows the flash to fire three consecutive shots at different exposure values (one at the set exposure, one underexposed, and one overexposed), helping to ensure optimal exposure in challenging lighting conditions.
Image: Visual examples of FEB in action.
Bounce Flash Capability
The flash head can be tilted from -7° to 120° and rotated 330° horizontally, providing flexible angles for bounce flash. This allows you to direct the light off a ceiling or wall for softer, more natural illumination.
Image: Diagram showing flash head tilt and rotation angles.
Godox 2.4G Wireless X System
The TT685II-S features a built-in Godox 2.4G Wireless X System, allowing it to function as both a transmitter and a receiver. This enables seamless wireless communication with other compatible Godox flashes and triggers, offering reliable off-camera flash control up to 100 meters.
Image: Godox TT685II-S in a wireless setup with other Godox units.
External Power Supply Port
The flash unit includes a Type-C port and a sync cord jack, allowing connection to an external power pack, such as the Godox PB960 (sold separately). This significantly boosts flash performance and recycling speed for extended shooting sessions.
Image: Godox TT685II-S connected to an external power pack.
Specifications
| Feature | Specification |
|---|---|
| Model | TT685IIS |
| Compatible Mountings | Sony Hot Shoe |
| Flash Sync Speed | 1/8000s (High-Speed Sync) |
| Wireless System | Godox 2.4G Wireless X System |
| Power Source | 4x AA Batteries (Alkaline or Ni-MH) |
| Tilt Angle | -7° to 120° |
| Rotation Angle | 0° to 330° |
| External Port | Type-C, Sync Cord Jack |
| Item Weight | 1.3 pounds (approx. 590g) |
| Package Dimensions | 8.11 x 3.66 x 3.5 inches |
| Manufacturer | GODOX |
Maintenance
- Clean the flash unit regularly with a soft, dry cloth. Do not use solvents or harsh chemicals.
- Ensure the hot shoe contacts are clean and free of debris for reliable connection.
- Remove batteries if the flash will not be used for an extended period to prevent leakage.
- Store the flash in its protective case in a cool, dry place away from direct sunlight.
Troubleshooting
| Problem | Possible Cause / Solution |
|---|---|
| Flash does not fire | Check battery level. Ensure flash is securely mounted on camera hot shoe. Verify flash mode and settings. |
| Flash output is inconsistent | Check battery charge. Ensure flash head is not obstructed. Verify camera and flash settings are compatible. |
| Wireless trigger not working | Ensure both flash and trigger are on the same channel and group. Check trigger batteries. Ensure line of sight. |
| Flash overheats | Reduce frequency of full-power flashes. Allow unit to cool down. |
If problems persist, please contact customer support.
Warranty and Support
For warranty information and technical support, please refer to the official Godox website or contact your authorized dealer. Keep your purchase receipt as proof of purchase for warranty claims.
Official Godox Website: www.godox.com
