Godox V350C Pioneering TTL Camera Flash

Foreword

Thank you for purchasing this Godox product. The V350C camera flash is designed for Olympus/Panasonic series cameras and is compatible with TTL autoflash. This TTL-compatible flash simplifies your shooting experience, allowing you to achieve correct flash exposure even in complex lighting environments.

Key features of this camera flash include:

• GN36 (m ISO 100, @105mm)
• Pro 1900mAh Li-ion Battery: Offers over 500 full power pops with a recycle time of 0.1s-1.7s.
• Full support for Olympus/Panasonic TTL camera flash. Can function as a Master or Slave unit in a wireless flash group.
• Built-in 2.4GHz wireless remote system for transmitting and receiving.
• Multiple functions: Manual flash, Multi flash, HSS (up to 1/8000s), rear curtain sync, FEC, etc.
• Supports firmware upgrades.

Warning

• Always keep the product dry. Do not use in rain or damp conditions.
• Do not disassemble. Repairs must be carried out by an authorized maintenance center.
• Keep out of reach of children.
• Stop using the product if it breaks open due to extrusion, falling, or strong impact to prevent electric shock.
• Do not fire the flash directly into eyes, especially babies', as it may cause visual impairment.
• Do not use the flash unit near flammable gases, chemicals, or similar materials, as they may be sensitive to the light and cause fire or electromagnetic interference.
• Do not leave or store the flash unit if the ambient temperature exceeds 50°C, as electronic parts may be damaged.
• Turn off the flash unit immediately in case of malfunction.

Name of Parts

Body:

• 01. Catchlight Panel
• 02. Built-in Wide Panel
• 03. Flash Head
• 04. Optic Control Sensor
• 05. Hotshoe
• 06. LCD Panel
• 07. Lock Ring
• 08. Battery Compartment
• 09. USB Port

Control Panel:

• 10. <MODE> Mode Selection Button
• 11. <ZOOM> Zoom Selection Button
• 12. <SYNC> High-Speed Sync Button
• 13. <SLAVE> S1/S2 Optic Slave Triggering Selection Button
• 14. < > Power Switch
• 15. < > Test Button / Flash Ready Indicator
• 16. <C.Fn> Custom Function Setting Button
• 17. < Z > Wireless Selection Button
• 18. <GR/CH> Group/Channel Button
• 19. Select Dial
• 20. <SET> Set Button

LCD Panel:

• (1) TTL Autoflash: Displays Zoom and TTL status.
• (2) M Manual Flash: Displays Manual flash output and sync settings.
• (3) Multi Flash: Displays Stroboscopic flash settings like frequency and number of flashes.
• (4) Radio Transmission Shooting: Shows Master/Slave status, firing group, channel, and flash mode.

Battery

Features

• Uses a Li-ion polymer battery with a long runtime and 500 charge/discharge cycles.
• Built-in safety features protect against overcharge, over-discharge, overcurrent, and short circuits.
• Charges fully in approximately 2.5 hours with the standard battery charger.

Cautions

• Avoid short-circuiting the battery.
• The battery is not waterproof; do not expose it to rain or immerse it in water.
• Keep out of reach of children.
• Do not charge continuously for over 24 hours.
• Store the battery in a cool, dry, and ventilated place.
• Do not place the battery near fire.
• Dispose of dead batteries according to local regulations.
• For long-term storage, charge the battery to approximately 60%.
• If the battery has been unused for over 3 months, perform a full recharge.

Battery Level Indication

The LCD panel displays the battery level. A low battery warning will appear, and the flash will auto power off in 1 minute. Recharge the battery promptly (within 10 days) to ensure usability or for long-term storage.

Attaching to a Camera

1. Attach the Camera Flash: Slip the flash's mounting foot into the camera's hotshoe.
2. Secure the Camera Flash: Rotate the lock ring on the mounting foot until it locks.
3. Detach the Camera Flash: Rotate the lock ring on the mounting foot until it is loosened.

Power Management

Use the Power Switch to turn the flash unit on (long press for 1 second) or off. Turn off if not in use for an extended period. As a master flash, it automatically powers off after about 90 seconds of idle use. Press the shutter button halfway or any flash button to wake it up. As a slave flash, it enters sleep mode after 60 minutes of idle use. Press any flash button to wake it up. Disabling Auto Power Off function is recommended when the flash is used off-camera (refer to C.Fn-ST, Page 47).

Flash Mode: TTL Autoflash

This flash offers three modes: TTL, Manual (M), and Multi (Stroboscopic). In TTL mode, the camera and flash work together to calculate correct exposure for the subject and background. TTL mode supports FEC, HSS, second curtain sync, etc.

Press the <MODE> button to cycle through the flash modes.

TTL Mode

Select <TTL> mode by pressing the <MODE> button. Half-press the camera shutter button to focus. When the shutter button is fully pressed, the flash fires a pre-flash for exposure calculation. The display shows "HI" for maximum output or "Lo" for minimum output, with blinking for 3 seconds. Adjust camera parameters if underexposure or overexposure occurs.

FEC: Flash Exposure Compensation

FEC allows adjustment from -3 to +3 in 1/3rd stops, useful for fine-tuning TTL exposure based on the environment. Press <SET> to enter adjustment mode, then use the Select Dial to set the compensation amount. Press <SET> again to confirm. Set to "+0" to cancel.

Shutter Sync Settings

1. High-speed sync: Press <SYNC> button. On Olympus, press OK or ; on Panasonic, enter Flash Mode via MENU and choose Fill-flash . Then set the camera shutter.
2. Second-curtain sync: On Olympus, press OK or ; on Panasonic, enter Flash Mode via MENU and set second-curtain mode. Then set the camera shutter.

Notes on High-speed sync:

• Faster shutter speeds reduce effective flash range.
• Multi flash mode is not compatible with high-speed sync.
• Over-temperature protection may activate after 15 consecutive high-speed sync flashes.
• Avoid frequent use of high-speed sync to prolong flash tube life.
• In wireless remote control mode, high-speed sync with Panasonic cameras may cause out-of-sync issues.

Flash Mode – M: Manual Flash

Adjust flash output from 1/1 to 1/128 power in 1/3rd stop increments. Use a handheld flash meter for accurate exposure. Press <MODE> to select <M>. Use the Select Dial to adjust flash output. High-speed sync and rear curtain sync are achievable in M mode.

Flash Output Range

The table shows how f/stop changes with flash output adjustments. Decreasing output to 1/2, 1/2-0.3, or 1/2-0.7, then increasing it to more than 1/2, 1/2+0.3, 1/2+0.7, or 1/1 will display accordingly.

Optical S1 Secondary Unit Setting

In M manual flash mode, press <SLAVE> to use the flash as an optic S1 secondary unit. It fires synchronously with the main flash, similar to radio triggers, creating multiple lighting effects.

Optical S2 Secondary Unit Setting

Press <SLAVE> to use the flash as an optic S2 secondary unit in M manual flash mode. This is useful for cameras with pre-flash. The flash ignores the first pre-flash and fires only on the second, actual flash.

S1 and S2 optic triggering, and off-camera high-speed sync, are only available in M manual flash mode.

Flash Mode – Multi: Stroboscopic Flash

This mode fires a rapid series of flashes, capturing multiple images of a moving subject. You can set the firing frequency (Hz), number of flashes, and flash output. Press <MODE> to select <Multi>. Use the Select Dial to choose flash output. Press <SET> to set flash frequency and then number of flashes.

Calculating the Shutter Speed

For stroboscopic flash, the shutter remains open until firing stops. Use the formula: Number of Flashes / Flash Frequency = Shutter Speed. For example, 10 flashes at 5 Hz requires a shutter speed of at least 2 seconds.

Caution: To prevent overheating, avoid more than 10 consecutive stroboscopic flashes. Allow at least 15 minutes rest. If the flash stops automatically, allow 15 minutes rest. Stroboscopic flash is most effective with reflective subjects against dark backgrounds. Using a tripod and remote control is recommended. It can be used with "bulb" mode.

Wireless Flash Shooting: Radio (2.4G) Transmission

Set up to three slave groups for TTL autoflash shooting, allowing for various lighting effects. Master flash settings are automatically transmitted to slave units. The flash supports TTL, M, and Multi modes when set as a master unit. It is compatible with Godox 2.4G wireless X system.

Master Unit compatibility: AD600, AD600M, AD360II-C, AD360II-N, V860IIO, V850II, TT6850, TT600, AD200.

Slave Unit compatibility: XProO, X1T-O, V860IIO, V850II, TT6850.

1. Wireless Settings

Switch between normal flash and wireless flash. Set to OFF for normal flash shooting.

Master Unit Setting: Long press <SYNC> for 2 seconds until < > blinks. Use Select Dial to display < > (master unit).

Slave Unit Setting: Long press <SYNC> for 2 seconds until < > blinks. Use Select Dial to display < > (slave unit).

2. Setting Master Unit's Flash Mode

Press <SLAVE> to select group (M/A/B/C). Press <MODE> to set master unit's mode to OFF, TTL, or M. Long press <MODE> for 2 seconds to switch to Multi mode.

3. Setting the Communication Channel

Change channel IDs to prevent interference. Master and slave units must have the same channel ID. Long press <SLAVE> for 2 seconds until channel ID blinks. Use Select Dial to choose a channel from 1 to 16. Press <SET> to confirm.

4. Wireless ID Settings

Change wireless channels and ID to avoid interference. Master and slave units must have the same channel and wireless ID. Access C.Fn ID via the MENU button, then <SET> to choose OFF or a figure from 01-99.

5. TTL: Fully Automatic Wireless Flash Shooting

Autoflash Shooting with One Slave Unit: Attach V3500 as master unit. M/A/B/C can be set to TTL mode independently. Set slave unit to A/B/C. Ensure communication channel is the same. Position camera and flashes. Check operation by pressing the master unit's Test Button. If the slave unit does not fire, adjust its angle, distance, or check for interference from nearby 2.4G devices.

6. M: Wireless Flash Shooting with Manual Flash

This describes wireless shooting with manual flash, allowing different flash output settings for each slave unit (firing group). Set all parameters on the master unit. Press <MODE> to select <M>. Use Select Dial to set flash output for groups.

Other Applications

Bounce Flash

Point the flash head towards a wall or ceiling to bounce the light. This softens shadows for a more natural look. Rotate the flash head to set the bounce direction. Ensure the surface is plain and white for best results. If the surface is too far or not white, it may cause underexposure or color cast.

Creating a Catchlight

Use the catchlight panel to add catchlights to the subject's eyes for a more lively expression. Point the flash head upward by 90°. Pull out the wide panel to expose the catchlight panel. Push the wide panel back in. Follow the same procedures as bounce flash. For best effect, maintain a distance of 1.5m/4.9ft from the subject.

ZOOM: Setting the Flash Coverage and Using the Wide Panel

Flash coverage can be set automatically or manually to match lens focal lengths (12-52mm for 4/3 format, 24-105mm for 135 format). The built-in wide panel expands coverage to 7mm (4/3 format) or 14mm (135 format). In Manual Zoom mode, press <ZOOM> to adjust coverage. <AU> sets automatic coverage. Ensure manual coverage matches the lens focal length to avoid dark peripheries. ZOOM cannot be adjusted when the low battery indicator is displayed.

Protection Function

1. Over-Temperature Protection

To prevent overheating, avoid firing more than 30 continuous flashes at 1/1 power without a rest of at least 10 minutes. If more than 30 flashes are fired in quick succession, the over-temperature protection may activate, increasing recycling time. Allow about 10 minutes for the unit to return to normal. The over-temperature protection status is indicated on the LCD. The table shows the number of flashes that activate this protection at different power outputs and sync modes.

2. Other Protections

The system includes real-time protection prompts:

• E1: Recycling system failure. Restart the flash. If the issue persists, send for maintenance.
• E3: Flash tube voltage too high. Send for maintenance.
• E9: Errors during firmware upgrade. Use the correct firmware upgrade method.

C.Fn: Setting Custom Functions

The table lists available custom functions: ST (Auto sleep), BL (Backlighting control), ID (Wireless ID), and 43 (ZOOM displayed format). To access C.Fn menu, press and hold <ZOOM> for 2 seconds. Use Select Dial to choose functions, <SET> to select and adjust, and <ZOOM> to exit.

Firmware Upgrade

Firmware can be upgraded via USB. Download "Godox G2 firmware upgrade software" and the relevant firmware file. Use a Micro USB connection line (not included). Refer to the latest electric version manual for the most up-to-date instructions.

To check the version, press <MODE> and turn on the flash. The version number (e.g., U-1.0) will be displayed on the LCD panel.

Technical Data

Declaration of Conformity: Godox Photo Equipment Co., Ltd. declares compliance with EU Directive 2014/53/EU. For more information, visit: http://www.godox.com/DOC/Godox_V350_Series_DOC.pdf

Maintenance

• Shut down the device immediately if abnormal operation is detected.
• Avoid sudden impacts and dust the product regularly.
• The flash tube may become warm during use; avoid continuous flashes unless necessary.
• Maintenance must be performed by authorized service departments with original accessories.
• The product has a one-year warranty (excluding consumables like flash tubes). Unauthorized service voids the warranty.
• Do not use the product if it has failures or has been wetted until repaired by professionals.
• Specifications and designs are subject to change without notice.

Troubleshooting

The Camera Flash cannot be charged.

• Check battery installation direction.
• If the battery is exhausted (indicated by < > blinking on LCD), recharge immediately.

The Camera Flash does not fire.

• Ensure the flash is securely attached to the camera.
• Clean the electrical contacts of the flash and camera.

The power turns off by itself.

• If set as master, it auto powers off after 90 seconds of idle operation. Wake it up by half-pressing the shutter or pressing any flash button.
• If set as slave, it enters sleep mode after 60 minutes of idle operation. Wake it up by pressing any flash button.

Auto zoom does not work.

• Ensure the flash is securely attached to the camera.

The flash exposure is underexposed or overexposed.

• High-speed sync: Effective flash range is shorter. Ensure the subject is within the displayed range.
• Manual Flash mode: Set to TTL mode or adjust flash output.

Photos have dark corners or only parts of the target subject are illuminated.

• The lens focal length exceeds the flash coverage. Check the set flash coverage. This flash covers 24-105mm (full-frame) and 12-52mm (M43 system). Pull out the wide panel to extend coverage.

Compatible Camera Models

This flash unit is compatible with the following camera models:

Olympus: E-M10II, E-M5II, E-M1, E-PL8, E-PL7, E-PL6, E-PL5, E-P5, E-P3, PEN-F

Panasonic: DMC-GX85, DMC-G7, DMC-GF1, DMC-LX100, DMC-G85, DMC-GH4, DMC-FZ2500GK

Note: This list includes tested models; self-testing is recommended for others. Rights to modify this table are retained.

FCC Statement

This device complies with Part 15 of the FCC Rules. Operation is subject to two conditions: (1) it may not cause harmful interference, and (2) it must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the responsible party could void the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, designed to provide reasonable protection against harmful interference in a residential installation. If interference occurs, try reorienting the antenna, increasing separation between equipment and receiver, connecting to a different circuit, or consulting a dealer or experienced technician. The device meets general RF exposure requirements and can be used in portable exposure conditions without restriction.

Warranty

This warranty card is important for maintenance service. Please fill it out with the seller and keep it safe. The warranty period is based on the Product Maintenance Information and starts from the purchase date. To obtain service, contact the product distributor or an authorized service institution, or call the Godox after-sale service number. A valid warranty card is required. Inapplicable cases include expired warranty, improper usage, unauthorized repairs, tampering with identification, lack of warranty card, illegal software usage, force majeure, accidents, or issues not related to product quality. Normal wear and tear are not covered.

Maintenance and Service Support Information:

Godox After-sale Service Call: 0755-29609320-8062