Godox TT685IIC Thinklite TTL Camera Flash

Foreword

Thank you for purchasing this product. This TT685IIC camera flash applies to Canon EOS series cameras and is compatible with E-TTL II autoflash. With this E-TTL II compatible flash, your shooting will become simpler. You can easily achieve a correct flash exposure even in complex light-changing environments. This camera flash features:

• Approx. GN60 (ISO 100, @200mm), 81 steps from 1/1 to 1/256.
• Fully support Canon E-TTL II camera flash. Workable as Transmitter or Receiver unit in a wireless flash group.
• Use dot-matrix LCD panel to make clear and convenient operations.
• With built-in 2.4GHz wireless remote system to support transmitting and receiving.
• Provided multiple functions, include HSS (up to 1/8000s), FEC, FEB, etc.
• Stable consistency and color temperature with good even lighting.
• Support with firmware upgrade.

Warning

• Always keep this product dry. Do not use in rain or in damp conditions.
• Do not disassemble. Should repairs become necessary, this product must be sent to an authorized maintenance center.
• Keep out of reach of children.
• Stop using this product if it breaks open due to extrusion, falling or strong hit. Otherwise, electric shock may occur if you touch the electronic parts inside it.
• Do not fire the flash directly into the eyes (especially those of babies) within short distances. Otherwise visual impairment may occur.
• Do not use the flash unit in the presence of flammable gases, chemicals and other similar materials. In certain circumstances, these materials may be sensitive to the strong light emitting from this flash unit and fire or electromagnetic interference may result.
• Do not leave or store the flash unit if the ambient temperature reads over 50°C. Otherwise the electronic parts may be damaged.
• Turn off the flash unit immediately in the event of malfunction.

Name of Parts

LCD Panel

(1) E-TTL Autoflash

Zoom: zoom display (Page 45)

A: Automatic

M: Manual (Page 35)

ETTL: E-TTL II autoflash

Focus length (Page 45)

H: High-speed sync (Page 34)

: Second curtain sync (Page 34)

: Flash exposure compensation (Page 32)

Flash exposure compensation amount

Effective Flash Range

Distance indicator display

Note: The display will only show the settings currently applied. The functions displayed above function buttons 1 to 4, such as SYNC and <A/B/C/D>, change according to settings' status. The LCD panel will lighten on when buttons and dials are operated.

(2) M Manual Flash

(3) Multi Flash

Multi: Stroboscopic flash

Number of flashes

Flash frequency

(4) Radio Transmission Shooting

Transmitter Unit (TX)

Flash mode

<()>: Radio transmission wireless shooting

: Transmitter unit flash ON

: Transmitter unit flash OFF

Receiver Unit (RX)

Receiver icon

ETTL 28mm

CH21. RX

Gr CH SYNC

LCD Panel in Three Modes

Attached to the Camera

ETTL 28 mm

-0.3

0.5 i 2 4

TCM SYNC FEB

18m

2.4G Radio Transmission: As a Transmitter Unit

28 mm

A M 1/256

B TTL 0.0

CH 21

M 1/256+0.5

D TTL 0.0

Firing group

Channel

2.4G Radio Transmission: As a Receiver Unit

ETTL 28mm

CH:21 RX

Gr CH SYNC

What's in the Box of TT685IIC Kit?

1. Flash Unit

2. Mini Stand

3. Protection Case

4. Instruction Manual

Separately Sold Accessories

The product can be used in combination with the following accessories sold separately, so as to achieve best photography effects: XProC, X2T-C & X1C TTL wireless flash trigger, etc.

Power Management

Use ON/OFF Power Switch to power the flash unit on or off. Turn off if it will not be used for an extended period of time. Setting as a transmitter flash, it will turn the power off automatically after a certain period (approx. 90 seconds) of idle use. Pressing the camera shutter halfway or pressing any flash button will wake up the flash unit. Setting as a receiver flash, it will enter sleep mode after a certain period (adjustable, 60 minutes by default) of idle use. Pressing any flash button will wake it up.

C.Fn Disabling Auto Power Off function is recommended when the flash is used off camera. (C.Fn-STBY, Page 46)

C.Fn Receiver Auto Power Off Timer is set to 60 minutes by default. Another option "30 minutes" is available. (C.Fn-RX STBY, Page 46)

Flash Mode - E-TTL Autoflash

This flash has three flash modes: E-TTL, Manual (M), and Multi (Stroboscopic). In E-TTL mode, the camera and the flash will work together to calculate the correct exposure for the subject and the background. In this mode, multiple TTL functions are available: FEC, FEB, FEL, HSS, second curtain sync, modeling flash, control with the camera's menu screen.

* Press < MODE > Mode Selection Button and three flash modes will display on the LCD panel one by one with each pressing.

ETTL Mode

Press < MODE > Mode Selection Button to enter E-TTL mode. The LCD panel will display.

• Press the camera release button halfway to focus. The aperture and effective flash range will be displayed in the viewfinder.
• When the shutter button is fully pressed, the flash will fire a pre-flash that the camera will use to calculate exposure and flash output the instant before the photo is taken.

FEC: Flash Exposure Compensation

With FEC function, this flash can adjust from -3 to +3 in 1/3rd stops. It is useful in situations where minor adjusting of the TTL system is needed based on the environment.

FEC Setting:

1. Press the <+/> button. The icon <> and flash exposure compensation amount will be highlighted on the LCD panel.

2. Set the flash exposure compensation amount. Turn the Select Dial to set the amount. "0.3" means 1/3 step, "0.7" means 2/3 step. To cancel the flash exposure compensation, set the amount to "+0".

3. Press Set Button again to confirm the setting.

FEB: Flash Exposure Bracketing

You can take three flash shots while automatically changing the flash output for each shot from -3 to +3 in 1/3rd stops. The camera will record three images with different exposures: one exposed according to camera calculations, one over-exposed and another under-exposed. Over and under exposure amount is user adjustable. This function helps get correct exposure especially in shooting moving objects or when environmental lights are complex.

1. Press function button 3 <> FEB icon <> and the exposure bracketing amount will be highlighted on the LCD panel.

2. Set the flash exposure compensation amount. Turn the Select Dial to set the amount. "0.3" means 1/3 step, "0.7" means 2/3 step. Press Set Button again to confirm the setting. Then your FEC and FEB settings are displayed on the LCD panel.

FEB will be cancelled after three photos are taken. For best results, set the camera drive mode to "single" and ensure the flash is ready before shooting. FEB can be used with FEC and FEL.

C.Fn You can prevent the FEB from being cancelled automatically after three photos are taken. (C.Fn-FEB ACL, Page 46)

FEL: Flash Exposure Lock

FEL can lock the correct flash exposure setting for any part of the scene. With <ETTL> displayed on the LCD panel, press the camera's <FEL> button. If the camera does not have the <FEL> button, press the < * > button.

1. Focus the subject. Press the <FEL> button. Aim the subject at the center of the viewfinder and press <FEL> button. The camera flash will fire a preflash and the required flash output for the subject is retained in memory.

"FEL" will display on the viewfinder for 0.5s. The camera flash will fire a preflash and lock the flash exposure setting once the <FEL> button is pressed.

If the subject is too far away and underexposure, the <> icon will blink in the viewfinder. Move closer to the subject and try the FE lock again. If <ETTL> is not displayed on the LCD panel, FE lock cannot be set. If the subject is too small, FE lock might not be very effective.

High-Speed Sync

High Speed Sync (FP flash) enables the flash to synchronize with all camera shutter speeds. This is convenient when you want to use aperture priority for fill-flash portraits.

1. Press Function Button 2 < SYNC > so that <H> is displayed.

2. Check that <H> is displayed in the viewfinder.

If you set a shutter speed that is the same as or slower than the camera's maximum flash sync speed, <> will not be displayed in the viewfinder. With high-speed sync, the faster the shutter speed, the shorter the effective flash range. To return to normal flash, press < SYNC> button again. Then <> will disappear. Multi flash mode cannot be set in high-speed sync mode. Over-temperature protection may be activated after 30 consecutive high-speed sync flashes.

Second-Curtain Sync

With a slow shutter speed, you can create a light train following the subject. The flash fires right before the shutter closes.

Press function button 2 < SYNC > button so that < > is displayed on the LCD panel.

M: Manual Flash

The flash output is adjustable from 1/1 full power to 1/256th power in 1/10th stop increments. To obtain a correct flash exposure, use a hand-held flash meter to determine the required flash output.

1. Press < MODE > button so that < M > is displayed.

2. Turn the Select Dial to choose a desired flash output amount.

3. Press Set Button again to confirm the setting.

Optic S1 Secondary Unit Setting

In M manual flash mode, press <S1/S2> button so that this flash can function as an optic S1 secondary flash with optic sensor. With this function, the flash will fire synchronously when the main flash fires, the same effect as that by the use of radio triggers. This helps create multiple lighting effects.

Optic S2 Secondary Unit Setting

Press <S1/S2> button so that this flash can also function as an optic S2 secondary flash with optic sensor in M manual flash mode. This is useful when cameras have pre-flash function. With this function, the flash will ignore a single "preflash" from the main flash and will only fire in response to the second, actual flash from the main unit. S1 and S2 optic triggering is only available in M manual flash mode.

Multi: Stroboscopic Flash

With stroboscopic flash, a rapid series of flashes is fired. It can be used to capture a multiple images of a moving subject in a single photograph. You can set the firing frequency (number of flashes per sec. expressed as Hz), the number of flashes, and the flash output.

1. Press <MODE> button so that < MULTI > is displayed.

2. Set the flash frequency and flash times. Press the Function Button 2 <Times> to select the flash times. Turn the Select Dial to set the number. Press the Function Button 3 <Hz> to select the flash frequency. Turn the Select Dial to set the number.

3. Turn the Select Dial to choose a desired flash output. After you finish the setting, press Set Button and all the settings will be displayed.

Calculating the Shutter Speed

During stroboscopic flash, the shutter remains open until the firing stops. Use the formula below to calculate the shutter speed and set it with the camera.

Number of Flashes / Flash Frequency = Shutter Speed

For example, if the number of flashes is 10 and the firing frequency is 5 Hz, the shutter speed should be at least 2 seconds.

To avoid overheating and deteriorating the flash head, do not use stroboscopic flash more than 10 times in succession. After 10 times, allow the camera flash to rest for at least 15 minutes. If you try to use the stroboscopic flash more than 10 times in succession, the firing might stop automatically to protect the flash head. If this happens, allow at least 15 minutes' rest for the camera flash.

Stroboscopic flash is most effective with a highly reflective subject against a dark background.

Using a tripod and a remote control is recommended.

A flash output of 1/1 and 1/2 cannot be set for stroboscopic flash.

Stroboscopic flash can be used with"buLb".

If the number of flashes is displayed as "-", the firing will continue until the shutter closes or the battery is exhausted. The number of flashes will be limited as shown by the following table.

Wireless Flash Shooting: Radio (2.4G) Transmission

When the camera's shooting mode is set to a fully automatic mode or an Image Zone mode, the operations in this chapter are not available. Set the camera's shooting mode to P/Tv/Av/M/B (Creative Zone Mode).

The TT685IIC attach to the camera is called the transmitter unit, and a TT685IIC that is wirelessly controlled is called the receiver unit.

You can also wirelessly control the TT685IIC set as the receiver unit with the transmitter X1T-C (sold separately). For details on setting the transmitter unit functions, see the transmitter's instructions.

Using a flash (transmitter/receiver) with a radio transmission wireless shooting function make it easy to shoot with advanced wireless multiple flash lighting, in the same way as E-TTL II autoflash shooting.

The basic relative position and operation range are as shown in the picture. You can then perform wireless E-TTL II autoflash shooting just by setting the transmitter unit to <ETTL>.

Positioning and Operation Range (Example of wireless flash shooting)

Autoflash Shooting with One Receiver Unit

Transmission distance is about 100m.

Use the supplied mini stand to position the Receiver unit. Before shooting, perform a test flash and test shooting. The transmission distance might be shorter depending on the conditions such as positioning of Receiver units, the surrounding environment and whether conditions.

Wireless Multiple Flash Shooting

You can divide the Receiver units into two or three groups and perform E-TTL II autoflash while changing the flash ratio (factor). In addition, you can set and shoot with a different flash mode for each firing group, for up to 4 groups.

Auto Shooting with Two Receiver Groups

Auto Shooting with Three Receiver Groups

Shooting with a Different Flash Mode set for Each Group

1. Wireless Settings

You can switch between normal flash and wireless flash. For normal flash shooting, be sure to set the wireless setting to OFF.

Transmitter Unit Setting

Press < > > button so that <() > is displayed on the LCD panel.

Receiver Unit Setting

Press <= > button so that < or < > & RX played on the LCD panel.

2. Transmitter Unit's Flash OFF

When the Transmitter unit is set to OFF, only the Receiver units will fire a flash.

Set Transmitter to ON/OFF to control the On/Off of the Transmitter unit.

<>: The Transmitter unit flash firing is ON.

<>: The Transmitter unit flash firing is OFF.

Even if the Transmitter unit flash firing is disabled, it still fires a preflash to transmit wireless signals.

3. Setting the Communication Channel

If there are other wireless flash systems nearby, you can change the channel IDs to prevent signal interference. The channel IDs of the Transmitter unit and the Receiver unit(s) must be set to the same.

1. Press <MENU> Button to enter C.Fn CH setting.

2. In C.Fn CH, turn the Select Dial to choose channel ID from 1 to 32.

3. Press the Set Button to confirm.

4. Wireless ID Settings

Change the wireless channels and wireless ID to avoid interference for it can only be triggered after the wireless IDs and channels of the Transmitter unit and the Receiver unit are set to the same. Press the <MENU> button to enter C.Fn ID. Press the Set Button to choose OFF channel expansion shutdown, and choose any figure from 01 to 99.

5. Scan the Spare Channel

To avoid the interference of using the same channel by others, this function can be used: enter the C.Fn settings and find the SCAN option. When setting it to START, it will scan from 1% to 100%. And the 8 spare channels will be displayed after the scan is completed.

6. ETTL: Fully Automatic Wireless Flash Shooting

Using Automatic Wireless Flash with a Single Receiver Unit

Using Automatic Wireless Flash with Multiple Receiver Units

When stronger flash output or more convenient lighting operation is needed, increase the number of Receiver units and set it as a single Receiver unit.

To add Receiver units, use the same steps as setting "automatic wireless flash with a single Receiver unit". Any flash group can be set (A/B/C/D/E). When the number of Receiver units is increased and the Transmitter unit flash firing is ON, automatic control is implemented to make all groups of flashes fire the same flash output and ensure the total flash output up is to standard exposure.

Using Fully Automatic Wireless Flash

The FEC and other settings that set on the Transmitter unit will also be appeared on the Receiver unit automatically. The Receiver unit does not need any operation. Use the following settings to make wireless flashes according to the same methods with normal flash shooting.

• Flash Exposure Compensation (Page 32)
• Flash Exposure Lock (Page 33)
• Manual Flash (Page 35)
• Stroboscopic Flash (Page 36)

About the Transmitter Unit

Use two or more Transmitter units. By preparing several cameras that with Transmitter units flash attached, cameras can be changed in shooting while keeping the same lighting source (Receiver unit).

M: Wireless Flash Shooting with Manual Flash

This describes wireless (multiple shooting) using manual flash. You can shoot with a different flash output setting for each Receiver unit (firing group). Set all parameters on the Transmitter unit.

1. Setting the flash mode to <M>.

2. Setting flash output. Press Function Button 1/2/3/4<A/B/C/D>. Turn the Select Dial to set the flash output of the groups. Press Set Button to confirm.

3. Taking the picture. Each group fires at the set flash ratio.

Setting <M> Flash Mode

You can directly operate the Receiver unit to manually set the manual flash or stroboscopic flash.

1. Setting the Receiver unit.

2. Setting flash mode to <M>. Press <MODE> button so that <M> is displayed. Set the manual flash output. (Page 35)

Multi: Wireless Flash Shooting with Manual Flash

1. Setting <MULTI> stroboscopic flash. Press <MODE> button so that <MULTI> is displayed. Setting the stroboscopic flash. (Page 36)

The Reason & Solution of Not Triggering in Godox 2.4G Wireless

1. Disturbed by the 2.4G signal in outer environment (e.g. wireless base station, 2.4G wifi router, Bluetooth, etc.) → To adjust the channel CH setting on the flash trigger (add 10+ channels) and use the channel which is not disturbed. Or turn off the other 2.4G equipment in working.
2. Please make sure that whether the flash has finished its recycle or caught up with the continuous shooting speed or not(the flash ready indicator is lighten) and the flash is not under the state of over-heat protection or other abnormal situation. → Please downgrade the flash power output. If the flash is in TTL mode, please try to change it to M mode(a preflash is needed in TTL mode).
3. Whether the distance between the flash trigger and the flash is too close or not (<0.5m) → Please turn on the "close distance wireless mode" on the flash trigger. X2 & X1 series: press the test button and hold on, then turning it on until the flash ready indicator blinks for 2 times. XPro series: Set the C.Fn-DIST to 0-30m.
4. Whether the flash trigger and the receiver end equipment are in the low battery states or not →Please replace the battery(the flash trigger is recommended to use 1.5V disposable alkaline battery).

Other Applications

Sync Triggering

The Sync Cord Jack is a $2.5mm plug. Insert a trigger plug here and the flash will be fired synchronously with the camera shutter.

Auto Focus Assist Beam

In poorly-lit or low-contrast shooting environments, the built-in auto focus assist beam will automatically light on to make it easier for autofocus. The beam will light up only when autofocus is difficult and get out as soon as the autofocus becomes correct. If you want to turn off the auto focus assist beam, set the "AF" to "OFF" on the C.Fn settings. If you find the auto focus assist beam does not light up, this is because the camera has got a correct autofocus.

Position

Center

Periphery

Effective Range

0.6~10m/2.0~32.8 feet

0.6~5m/2.0~16.4 feet

Bounce Flash

By pointing the flash head toward a wall or ceiling, the flash will bounce off the surface before illuminating the subject. This can soften shadows behind the subject for a more natural-looking shot. This is called bounce flash. To set the bounce direction, hold the flash head and turn it to a satisfying angle.

Creating a Catchlight

With the catchlight panel, you can create a catchlight in the subject's eyes to add life to the facial expression.

1. Point the flash head upward by 90°.

2. Pull out the wide panel. The catchlight panel will come out at the same time.

3. Push the wide panel back in. ● Push in only the wide panel. Follow the same procedures as for bounce flash.

Notes: ●Point the flash head straight ahead and then upward by 90°. The catchlight will not appear if you swing the flash head left or right. ●For maximum catchlight effect, stay 1.5m/4.9ft away from the subject.

ZOOM: Setting the Flash Coverage

The flash coverage can be set automatically or manually. It can be set to match the lens focal length from 20mm to 200mm.

In Manual Zoom mode, press the <ZOOM> button.

Turn the Select Dial to change the flash coverage.

If <A> is displayed, the flash coverage will be set automatically.

If you set the flash coverage manually, make sure it covers the lens focal length so that the picture will not have a dark periphery.

Low Battery Warning

If the battery power is low, < > will appear and blink on the LCD panel. Please replace the battery immediately.

C.Fn: Setting Custom Functions

The following table lists the available and unavailable custom functions of this flash.

C.Fn Custom Functions

Custom Function Signs

Function

Distance indicator

m/ft

Setting No.

Settings & Description

m

m

ft

feet

AF

AF-assist beam RX

ON

ON

OFF

OFF

STBY

Auto sleep setting

ON

ON

OFF

OFF

RX STBY

Receiver auto power off timer

60min

60min

30min

30min

SCAN

Scan the spare channel

OFF

OFF

START

Start to find the spare channel

CH

Channel setting

01~32

Choose channels from 01-32

ID

Wireless ID

OFF

Off

01-99

Choose any figure from 01-99

BEEP

Beeper

ON

ON

OFF

OFF

LIGHT

Backlighting time

12sec

Off in 12 sec.

OFF

Always off

ON

Always lighting

LCD

LCD contrast ratio

-3~+3

7 levels

Control with the Camera's Menu Screen

If the camera flash is attached to an EOS camera which has a speedlite control function, the flash can be controlled using the camera's menu screen. For the menu operation procedure, refer to your camera's instruction manual.

Setting Camera Flash Functions

The following flash functions are settable according to different flash modes.

1. Flash mode
2. Shutter sync (1st/2nd curtain, high speed sync)
3. FEB
4. Flash exposure compensation
5. Flash firing
6. Clear camera flash's settings

Custom Functions of Camera Flash

C.Fn-00, C.Fn-01, C.Fn-03, C.Fn-08, C.Fn-10, C.Fn-20, C.Fn-22.

Clear All Flash Custom Functions

Flash function settings screen

Flash function settings

Flash mode

E-TTLII

Shutter sync

1st curtain

FEB

-3.2.1.0.1.2.3

FEC

E-TTL II

Flash firing

Enable

Clear camera flash's Settings

Flash C.Fn settings screen

Flash C.Fn settings

Auto powe off

0:Enabled

1: Disabled

Shutter sync

1st curtain

FEB

-3.2.1.0.1.2.3

FEC

E-TTL II

Flash firing

Enable

Clear camera flash's Settings

* Screens from the EOS-1D Mark III.

If flash exposure compensation has already been set with the camera flash, flash exposure compensation cannot be set with the camera. To set it with the camera, the camera flash's flash exposure compensation must be set to zero.

If any Flash Custom Functions and flash settings other than flash exposure compensation have been set by both the camera and the flash, the latest settings will take effect.

Protection Function

1. Over-Temperature Protection

To avoid overheating and deteriorating the flash head, do not fire more than 40 continuous flashes in fast succession at 1/1 full power. After 40 continuous flashes, allow a rest time of at least 10 minutes.

If you fire more than 40 continuous flashes and then fire more flashes in short intervals, the inner over-temperature protection function may be activated. If this occurs, allow a rest time of about 10 minutes, and the flash unit will then return to normal. When the over-temperature protection is started, is shown on the LCD display.

Number of flashes that will activate over-temperature protection:

ZOOM (mm)

20 24 28 35 50 70 80 105 135 200

Number of Flashes

Power Output Level

1/1

40 50 50 60 60 70 70 80 80 80

1/2

50 60 60 75 75 100 100 100 100 100

1/4

100 100 100 100 120 150 150 150 150 150

1/8

200 200 200 200 200 200 200 200 200 200

1/16

300 300 300 300 300 300 300 300 300 300

1/32

500 500 500 500 500 500 500 500 500 500

1/64

1000 1000 1000 1000 1000 1000 1000 1000 1000 1000

1/128

2000 2000 2000 2000 2000 2000 2000 2000 2000 2000

Number of flashes that will activate over-temperature protection in high-speed sync triggering mode:

ZOOM (mm)

20-200

Power Output Level

1/1

30

1/2

30

1/4

34

1/8

40

1/16

50

1/32

50

1/64

60

1/128

60

2. Other Protections

The system provides real-time protection to secure the device and your safety. The following lists prompts for your reference:

Technical Data

Model: TT685IIC

Compatible Cameras: Canon EOS cameras (E-TTL II autoflash)

Guide No.(1/1 output, 200mm): GN≈60 (m ISO100)

Flash Coverage: 20 to 200mm

• Auto zoom (Flash coverage set automatically to match the lens focal length and image size)
• Manual zoom
• Swinging/tilting flash head (bounce flash): 0 to 330° horizontally and -7° to 120° vertically

Flash Duration: 1/300 to 1/20000 seconds

Exposure Control:

• Exposure control system: E-TTL II autoflash and manual flash
• Flash exposure compensation (FEC): Manual. FEB: ±3 stops in 1/3 stop increments (Manual FEC and FEB can be combined.)
• FE lock: With <FEL> button or< * > button
• Sync mode: High-speed sync (up to 1/8000 seconds), first-curtain sync, and second-curtain sync
• Multi flash: Provided (up to 100 times, 199Hz)

Wireless Flash (2.4G Radio Transmission):

• Wireless flash function: Transmitter, Receiver, Off
• Transmitter groups: A, B, C, D
• Controllable Receiver groups: A, B, C, D, E (E group can be controlled by X series flash trigger)
• Transmission range (approx.): 100m
• Channels: 32 (1~32)
• ID: 01~99
• Modeling flash: Fired with camera's depth-of-field preview button
• Auto Focus Assist Beam:
• Effective range (approx.): Center: 0.6~10m, Periphery: 0.6~5m

Power Supply:

• Power source: NI-MH battery(recommended) or LR6 alkaline battery*4
• Recycle time: 0.1-2.6s (Rechargeable Ni-MH Battery)
• Full power flashes: About 290 times
• Power saving: Power off automatically after approx. 90 seconds of idle operation. (60 minutes if set as Receiver)

Sync Triggering Mode: Hotshoe, 2.5mm sync line

Working temperature: -10°C - 50°C

Troubleshooting

If there is a problem, refer to this Troubleshooting Guide.

The Camera Flash does not fire.

• The camera flash is not attached securely to the camera. →Attach the camera's mounting foot securely to the camera.
• The electrical contacts of the Camera Flash and camera are dirty. →Clean the contacts.
• < > or <H> is not displayed in the view finder of camera. →Wait until the flash is fully recycled and the flash ready indicator lights up. →If the flash ready indicator lights up, but < > or <H> is not displayed in the view finder, check whether this flash unit is securely attached to the camera hotshoe. →If the flash ready indicator does not light up after a long wait, check whether the battery power is enough. If the battery power is low, < > will appear and blink on the LCD panel. Please replace the battery immediately.

The power turns off by itself.

• After 90 seconds of idle operation, auto power off took effect if the flash is set as Transmitter. →Press the shutter button halfway or press any flash button to wake up.
• After 60 minutes (or 30 minutes) of idle operation, the flash unit will enter sleep mode if it is set as Receiver. →Press any flash button to wake up.

Auto zoom does not work.

• The camera flash is not attached securely to the camera. →Attach the camera flash's mounting foot to the camera.

The flash exposure is underexposed or overexposed.

• There was a highly reflective object (e.g. glass window) in the picture. →Use FE lock (FEL).
• You used high-speed sync. →With high-speed sync, the effective flash range will be shorter. Make sure the subject is within the effective flash range displayed.
• You used Manual Flash mode. →Set the flash mode to ETTL or modify the flash output.

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

• The focal length of lens exceeds the flash coverage. →Check the flash coverage you set. This flash unit has the flash coverage between 20 and 200mm, which fits medium-format cameras.

Firmware Upgrade

The USB port is a Type-C USB socket. Type-C USB connection line is applicable.

As the firmware upgrade needs the support of Godox G3 software, please download and install the "Godox G3 firmware upgrade software" before upgrading. Then, choose the related firmware file.

As the product needs to do firmware upgrade, please refer to instruction manual of the newest electric version as final.

Compatible Camera Models

This flash unit can be used on the following Canon EOS series camera models:

5DMarkII 70D 6D 7D 60D 50D 30D 600D 90D

5D Mark IV 7D Mark II 760D 750D 80D 800D

500D 77D EOS 1DX 200D II

Note: This table only lists the tested camera models, not all Canon EOS series cameras. For the compatibility of other camera models, a self-test is recommended. Rights to modify this table are retained.

Maintenance

• Shut down the device immediately should abnormal operation be detected.
• Avoid sudden impacts and the product should be dedusted regularly.
• It is normal for the flash tube to be warm when in use. Avoid continuous flashes if unnecessary.
• Maintenance of the flash must be performed by our authorized maintenance department which can provide original accessories.
• This product, except consumables e.g. flash tube, is supported with a one-year warranty.
• Unauthorized service will void the warranty.
• If the product had failures or was wetted, do not use it until it is repaired by professionals.
• Changes made to the specifications or designs may not be reflected in this manual.

FCC Statement

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Declaration of Conformity:

GODOX Photo Equipment Co,Ltd. hereby declares that the This equipment are in compliance with the essential requirements and other relevant provisions of EU Directive 2014/53/EU. They are allowed to be used in all EU member states.

For more information of DoC, Please click this web link: http://www.-godox.com/DOC/Godox_TT685II_Series_DOC.pdf

Warranty

Dear customers, as this warranty card is an important certificate to apply for our maintenance service, please fill in the following form in coordination with the seller and safekeep it. Thank you!

Product Model

Information

Customer Information

Name

Address

Seller Information

Name

Contact Number

Address

Date of Sale

Note:

Note: This form shall be sealed by the seller.

Applicable Products

The document applies to the products listed on the Product Maintenance Information (see below for further information). Other products or accessories (e.g. promotional items, giveaways and additional accessories attached, etc.) are not included in this warranty scope.

Warranty Period

The warranty period of products and accessories is implemented according to the relevant Product Maintenance Information. The warranty period is calculated from the day(purchase date) when the product is bought for the first time, And the purchase date is considered as the date registered on the warranty card when buying the product.

How to Get the Maintenance Service

If maintenance service is needed, you can directly contact the product distributor or authorized service institutions. You can also contact the Godox after-sale service call and we will offer you service. When applying for maintenance service, you should provide valid warranty card. If you cannot provide valid warranty card, we may offer you maintenance service once confirmed that the product or accessory is involved in the maintenance scope, but that shall not be considered as our obligation.

Maintenance and Service Support Information

The warranty period and service types of products are implemented according to the following Product Maintenance Information:

Product Name

Type

Parts

Circuit Board

Battery

Electrical parts e.g.battery charger, power cord, sync cable, etc.

Other Items

Flash tube, modeling lamp, lamp body, lamp cover, locking device, package, etc.

Maintenance Warranty Service Period(month) Type

12

Customer sends the product to designated site

3

Customer sends the product to designated site

12

Customer sends the product to designated site

No

Without warranty

Godox After-sale Service Call 0755-29609320-8062