GODOX GD-TT350O

Godox TT350O Mini TTL HSS 2.4GHz Camera Flash Speedlite Instruction Manual

For Olympus/Panasonic Mirrorless Digital Cameras

Godox TT350O Mini TTL HSS 2.4GHz Flash with Godox Photo Lighting Solutions logo

Overview of the Godox TT350O flash unit, highlighting its compatibility and features.

Introduction

This manual provides detailed instructions for the safe and effective use of your Godox TT350O Mini TTL HSS 2.4GHz Camera Flash Speedlite. Designed for Olympus and Panasonic mirrorless digital cameras, this compact flash unit offers advanced features including TTL autoflash, High-Speed Sync (HSS), and a 2.4GHz wireless X system for master and slave functionality. Please read this manual thoroughly before operation to ensure optimal performance and to prevent damage to the product.

Godox TT350O flash held in a hand, demonstrating its compact size

The compact design of the Godox TT350O flash, suitable for mirrorless camera systems.

What's in the Box

  • 1 x Godox TT350O Camera Flash
  • 1 x Mini Stand
  • 1 x Protection Bag
  • 1 x Diffuser
  • 1 x User Manual (this document)
  • 1 x EACHSHOT Color Filters (set)
Godox TT350O flash unit with included diffuser and protection bag

The Godox TT350O flash unit shown with its standard accessories: a diffuser and a protective carrying bag.

Setup

1. Battery Installation

The TT350O flash operates on two AA batteries. Ensure you use fresh, high-quality alkaline or NiMH rechargeable batteries for optimal performance.

  1. Open the battery compartment cover located on the side of the flash unit.
  2. Insert two AA batteries according to the polarity indicators (+/-) inside the compartment.
  3. Close the battery compartment cover securely.
Godox TT350O flash with the battery compartment open, showing two AA batteries being inserted

Proper insertion of two AA batteries into the Godox TT350O flash unit.

2. Mounting to Camera

To attach the flash to your camera's hot shoe:

  1. Slide the flash's mounting foot into the camera's hot shoe.
  2. Rotate the locking wheel clockwise until the flash is securely fastened to the camera.
Godox TT350O flash mounted on a Lumix camera, front view

The Godox TT350O flash mounted on a Lumix camera, viewed from the front.

Godox TT350O flash mounted on a Lumix camera, side view

The Godox TT350O flash mounted on a Lumix camera, viewed from the side.

Operating the Flash

1. Power On/Off

Press and hold the power button (U) to turn the flash on or off.

Rear view of Godox TT350O flash mounted on a camera, showing the LCD display and control buttons

The rear panel of the Godox TT350O, displaying the LCD screen and control buttons for operation.

2. Flash Modes

Press the MODE button to cycle through available flash modes:

  • TTL Autoflash Mode: Automatically sets flash output for correct exposure.
  • Manual Flash Mode (M): Allows manual adjustment of flash output from 1/1 to 1/128 power.
  • Multi Flash Mode: Fires a series of rapid flashes for multiple exposures in a single frame.

3. Flash Exposure Compensation (FEC)

Adjust the flash output level to fine-tune exposure. FEC can be set from -3 to +3 stops in 1/3 stop increments.

Three images demonstrating different flash exposure compensation settings, from underexposed to overexposed

Visual representation of flash exposure compensation, showing how different settings affect the final image brightness.

4. Sync Modes

The TT350O supports various sync modes:

  • High-Speed Sync (HSS): Allows flash synchronization at shutter speeds up to 1/8000s.
  • First-Curtain Sync: Flash fires immediately after the shutter opens.
  • Second-Curtain Sync: Flash fires just before the shutter closes, useful for capturing motion trails.
Two images demonstrating front curtain sync and rear curtain sync, showing different motion blur effects

Examples of front curtain sync and rear curtain sync, illustrating how they affect the appearance of motion in photographs.

5. Wireless Flash Function (2.4G Transmission)

The TT350O integrates with the Godox 2.4G wireless X system, functioning as both a master and slave unit.

  • Master Unit: The TT350O can control other Godox slave units (e.g., AD600, AD200).
  • Slave Unit: The TT350O can be controlled by a Godox master unit or trigger (e.g., X1T-O, V850II).
Diagram showing 2.4G wireless transmission between a Godox XPro trigger and a Godox flash unit

Illustration of the 2.4G wireless transmission system, enabling remote control of the flash.

Diagram illustrating master and slave flash configurations with Godox TT350O and other Godox flash units

Diagram showing how the TT350O can function as both a master and slave unit within the Godox 2.4G wireless X system.

6. Flash Head Rotation

The flash head can be rotated horizontally and vertically to bounce light off surfaces, providing softer and more natural illumination.

  • Vertical Rotation: -7° to 90°
  • Horizontal Rotation: 0° to 270°
Image showing the Godox TT350O flash head rotating in multiple directions

The flash head of the TT350O can be rotated for flexible light positioning and bounce flash techniques.

7. Using the Diffuser and Color Filters

Attach the included diffuser to soften the flash light, reducing harsh shadows. The color filters can be used to adjust the color temperature of the flash to match ambient light or for creative effects.

Godox TT350O flash with a white diffuser attached, standing on a mini stand

The Godox TT350O flash with the included diffuser attached, ready for use.

Godox TT350O flash with a yellow color filter attached to the flash head

The Godox TT350O flash with a yellow color filter applied, demonstrating accessory use.

Maintenance

1. Cleaning

Regularly clean the flash unit with a soft, dry cloth. Avoid using solvents or harsh chemicals. For the flash tube, use a lint-free cloth to gently wipe away any dust or smudges.

2. Storage

When not in use for extended periods, remove the batteries to prevent leakage. Store the flash in its protective bag in a cool, dry place, away from direct sunlight and extreme temperatures.

3. Firmware Updates

Godox may release firmware updates to improve performance or add new features. Check the official Godox website for the latest firmware and instructions on how to update your TT350O via its USB port.

Image showing a Godox flash connected via USB to a laptop for firmware upgrade

The process of connecting the flash to a computer for firmware updates via USB.

Troubleshooting

  • Flash not firing:
    • Check if the flash is securely mounted on the camera's hot shoe.
    • Ensure batteries are correctly inserted and have sufficient charge.
    • Verify the flash is powered on.
    • Check camera settings to ensure external flash is enabled.
  • Incorrect exposure:
    • Adjust Flash Exposure Compensation (FEC).
    • In Manual mode, adjust the power output.
    • Ensure the flash head is pointed correctly (not blocked).
  • Wireless communication issues:
    • Ensure master and slave units are set to the same channel and group.
    • Check the distance between units; maximum range is approximately 30m.
    • Verify there are no obstructions blocking the signal.

Specifications

FeatureSpecification
Model NumberGD-TT350O
Compatible MountingsOlympus, Panasonic
Guide Number (GN)36 (m ISO 100, @105mm)
Flash Coverage24 to 105mm (Auto/Manual Zoom)
Flash Duration1/350 to 1/20000 Seconds
Exposure Control SystemTTL Autoflash, Manual Flash
Flash Exposure Compensation (FEC)±3 stops in 1/3 stop increments
Sync ModeHigh-Speed Sync (up to 1/8000s), First-Curtain Sync, Second-Curtain Sync
Multi FlashProvided (up to 90 times, 99Hz)
Wireless Flash FunctionMaster, Slave, Off (2.4G Transmission)
Controllable Slave Groups3 (A, B, and C)
Transmission Range (approx.)≤30m
Channels16 (1-16)
Power Source2 x AA batteries
Dimensions5.51 x 1.5 x 2.44 inches
Item Weight7.1 ounces

Warranty and Support

For warranty information and technical support, please refer to the official Godox website or contact your authorized dealer. Keep your proof of purchase for any warranty claims.

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