Godox TT685IIO Thinklite TTL Camera Flash Instruction Manual

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.

TTL：Fully Automatic Wireless Flash Shooting Using Automatic Wireless Flash with a Single Receiver Unit

1. Transmitter Unit Setting
   Attach a TT685IIO camera flash on the camera and set it as the Transmitter unit. M/A/B/C can be set as TTL respectively.

2. Check the communication channel.
   If the Transmitter unit and Receiver unit(s) are set to a different channel, set them to the same channel.

3. Position the camera and flashes.
   Position the camera and flashes as the picture shows.

4. Check that the flash is ready.
   Check that the Transmitter flash ready indicator is lightened.

5. Check the flash operation.
   Press the Transmitter unit’s Test Button < >. Then, the Receiver unit will fire. If not, adjust the Receiver unit’s angle toward the Transmitter unit and distance from the Transmitter 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.

• If the Receiver unit’s auto power off function is workable, press the Transmitter unit’s test button to power it on. Please note that test firing is unavailable during the camera’s regular metering time.
• The effective time of Receiver auto power off is changeable.

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

About the Transmitter Unit
Use two or more Transmitter units. By preparing several cameras with Transmitter units flash attached, cameras can be changed 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 .

2. Setting flash output.
   Press FunctionButton 1/2/3/4<M/A/B/C>. 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 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 .
   Press button so that is displayed. Set the manual flash output.

Multi: Wireless Flash Shooting with Manual Flash

1. Setting stroboscopic flash.
   •  Press button so that is displayed.
   • Setting the stroboscopic flash

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 Φ2.5mm plug. Insert a trigger plug here and the flash will be fired synchronously with the camera shutter.
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.

• If the wall or ceiling is too far away, the bounced flash might be too weak and result in underexposure.
• The wall or ceiling should be a plain, white color for high reflectance. If the bounce surface is not white, a color cast may appear in the picture.

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 or 10mm to 100mm.

• In Manual Zoom mode, press the button.
• Turn the Select Dial to change the flash coverage.
• If < > 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 Cus

Custom Function Signs

| tom Function

Function

| s

Setting No.

| Settings & Description
m/ft| Distance indicator| m| m
ft| feet
ZOOM| ZOOM display format| 4/3| 4/3 system
135| 135 system
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
TX DIST| Firing distance| 1-100m

0-30m

| 1-100m firing 0-30m firing

1. Press Button until C.Fn menu is displayed. The “Ver x.x” in the top-right corner refers to the software version.
2.  Select the Custom Function No.
   •  Turn the Select Dial to select the Custom Function No.
3.  Change the Setting.
   • Press Set Button and the Setting No. blinks.
   • Turn the Select Dial to set the desired number. Pressing Set Button will confirm the settings.
   • After you set the Custom Function and press button, the camera will be ready to shoot.
4.  In the C.Fn states, long press the “Clear”button for 2 seconds until “OK”is displayed on the panel, which means the values in C.Fn can be reset.

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:****
     Number                     ZOOM

of Flashes            (mm)

Power

Output Level

| 20| 24| 28| 35| 50| 70| 80| 105| 135| 200
---|---|---|---|---|---|---|---|---|---|---
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
1/256| 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:****
  Number                        ZOOM

of Flashes               (mm)

Power

Output Level

| 20 – 200
---|---
1/1| 30
1/2| 30
1/4| 34
1/8| 40
Number                        ZOOM

of Flashes               (mm)

Power

Output Level

| 20 – 200
---|---
1/16| 50
1/32| 50
1/64| 60
1/128| 60

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

E1

| A failure occurs on the recycling system so that the flash cannot fire.

Please restart the flash unit. If the problem still exists,

please send this product to a maintenance center.

E2| The system gets excessive heat. Please allow a rest

time of 10 minutes.

E3| The voltage on two outlets of the flash tube is too high.

Please send this product to a maintenance center.

E9| There are some errors occurred during the upgrading process. Please using the correct firmware upgrade method.

Technical Data

(135 system)

• 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| TTL autoflash and manual flash
Flash exposure

compensation (FEC)

| Manual: ±3 stops in 1/3 stop increments
Sync mode| High-speed sync (up to 1/8000 seconds),

first-curtain sync, and second-curtain sync

Multi flash| Provided (up to 90 times, up to 100Hz)
• Wireless Flash（2.4G Radio Transmission）
Wireless flash function| Transmitter, Receiver, Off
Transmitter groups| M,A,B,C
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
• 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℃-50℃
• 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℃-50℃

Troubleshooting

• The Camera Flash cannot be charged.
• The battery is installed in the wrong direction.
  • Install the battery in the correct direction.
• The camera flash’s internal battery is exhausted.
  • If < > appears and blinks on the LCD panel, replace the battery immediately.
  • 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.
  • 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.
• 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 TTL 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 10 and 100mm(4/3 system) or 20 and 200 mm(135 system).

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 Olympus/Panasonic camera models:

Olympus : E-M10II、E-M5II、E-M1、E-PL8、E-PL7、E-PL6、 E-PL5 E-P5、E-P3、PEN-F、E-M10III
Panasonic : DMC-GX85、DMC-G7、DMC-GF1、DMC-LX100 DMC-G85、DMC-GH5、DMC-GH4 、DMC-FZ2500GK、S1、GH4

This table only lists the tested camera models, not all Olympus/Panasonic 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.

Address
Seller Information| Name
Contact Number
Address
Date of Sale
Note:

Applicable Products
The document applies to the products listed on the Product Maintenance lnformation (see below for further information). Other products or accessories (e.g. promotional items,giveaways and additional accessories attached,etc.) are notincluded in this warranty scope.

Warranty Period
The warranty period of products and accessories isimplemented according to the relevant Product Maintenancelnformation. 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 onthe 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 wananty 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 :

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

etc.

| 12| Customer sends the product to designated site
Other Items| Flash tube, modeling lamp, lamp body, lamp cover, lockingdevice,

package, etc.

| No| Without warranty

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