FCC ID: 2ABYNTT685C Thinklite TTL Camera Flash

GODOX PHOTO EQUIPMENT CO.LTD TTL Camera Flash TT685C For Canon Foreword Before using this product Please read this user manual carefully in order to ensure your safety and the proper operation of this product. Keep for future reference. Thank you for purchasing this product. This TT685C 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:

GN60 (m ISO 100, @200mm). 22 steps from 1/1 to 1/128.

Fully support Canon E-TTL II camera flash. Workable as Master or Slave 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.

Use optional FT-16S to adjust flash parameters & trigger the flash.

Stable consistency and color temperature with good even lighting.

Support with firmware upgrade. For Your Safety

Always keep this product dry. Do not use in rain or in damp conditions.

This product contains high-voltage electronic parts. Touching the high-voltage circuit inside it may result in electric shock. Do not disassemble. Should repairs become necessary, this product must be sent to an authorized maintenance center.

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. When taking pictures for babies, keep the flash unit at least 1 meter (3.3 feet) away from them. Using bounce flash to reduce light intensity is also recommended.

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 in places where the ambient temperature reads over 50C

(e.g. in automobile). Otherwise the electronic parts may be damaged. Contents Foreword For Your Safety Name of Parts Body Control Panel Dot-matrix LCD Panel Whats in the Box of TT685C?

Separately Sold Accessories Attaching to a Camera Power Management Flash Mode E-TTL Autoflash FEC (Flash Exposure Compensation) FEB (Flash Exposure Bracketing) FEL: Flash Exposure Lock High-Speed Sync Second-Curtain Sync Flash ModeM: Manual Flash Flash ModeMulti/Stroboscopic Flash Wireless Flash Shooting: Optic Transmission Wireless Settings Master Units Flash OFF Setting the Communication Channel ETTL: Fully Automatic Wireless Flash Shooting ETTL: Use the Wireless Shooting of Flash Ratio M: Wireless Flash Shooting with Manual Flash Wireless Flash Shooting: Ratio (2.4G) Transmission Other Applications Wireless Control Function Sync Triggering Modeling Flash Auto Focus Assist Beam Bounce Flash Creating a Catchlight ZOOM: Setting the Flash Coverage and Using the Wide Panel Low Battery Indicator C.Fn: Setting Custom Functions Control with the Cameras Menu Screen Protection Function Technical Data Troubleshooting Firmware Upgrade Compatible Camera Models Maintenance Conventions used in this Manual

This manual is based on the assumption that both the camera and camera flashs power switches are powered on.

Reference page numbers are indicated by p.**.

The following alert symbols are used in this manual:

The Caution symbol indicates a warning to prevent shooting problem. The Note symbol gives supplemental information. Name of Parts

Body 01. Catchlight Panel 02. Built-in Wide Panel 03. Flash Head 04. Optic Control Sensor 05. Focus Assist Beam 06. Wireless Control Port 07. Sync Cord Jack 08. Hotshoe 09. Dot-marix LCD Panel 10. Lock Ring 11. Battery Compartment 12. USB Port 13. Slave Flash Ready Indicator 14. External power supply Socket

Control Panel 15 < MODE > Mode Selection Button / Lock Button 16. <

> Wireless Selection Button 17. Select Dial 18. <SET > Set Button 19. ON/OFF Power Switch 20. <

> Test Button / Flash Ready Indicator 21. Function Button 1 22. Function Button 2 23. Function Button 3 24. Function Button 4

LCD Panel E-TTL Autoflash

The display will only show the settings currently applied.

The functions displayed above function buttons 1 to 4, such as and

, change according to settings status.

When a button or dial is operated, the LCD panel illuminated. (Page **) M Manual Flash Multi Flash Radio Transmission Shooting/Optic Transmission Shooting

Master Unit

Slave Unit

Whats in the Box of TT685C?

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:

FT-16S power & trigger control, Car charger, Mini softbox, White & Silver reflector, Honeycomb, Color gels, Snoot, etc. Attaching to a Camera 1. Attach the Camera Flash. Slip the camera flashs mounting foot into the cameras hotshoe all the way. 2. Secure the Camera Flash. Rotate the lock ring on the mounting foot until it locks up. 3. Detach the Camera Flash. Rotate the lock ring on the mounting foot until it is loosened. 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 master 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 slave 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. Disabling Auto Power Off function is recommended when the flash is used off camera.

(C.Fn-APO, see p.) Slave Auto Power Off Timer is set to 60 minutes by default. Another option 30 minutes is available. (C.Fn-Sv APOT, see p.) 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 cameras 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. Setting FEC:

1. Press Function Button 2 <

>. 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. 0.3means 1/3 step, 0.7means 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 <

>. The icon <

> and the exposure bracketing amount will be highlighted on the LCD panel. 2. Set the exposure bracketing amount. Turn the Select Dial to set the amount. 0.3means 1/3 step, 0.7means 2/3 step. 3. Press <SET> button again to confirm the setting. Then the 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. You can prevent the FEB from being cancelled automatically after three photos are taken. (C.Fn-FEB ACL) FEL: Flash Exposure Lock The FEB shooting sequence can be changed. (C.Fn-FEB) FEL can lock the correct flash exposure setting for any part of the scene. With <ETTL> displayed on the LCD panel, press the cameras <FEL> button. If the camera does not have the <FEL> button, press the < > button. 1. Focus the subject. 2. 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.

* Each time the <FEL> button is pressed, a preflash will be fired and a new flash exposure setting will be locked. 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. 1Press Function Button 2 <

> so that <

> is displayed. 2Check that <

> is displayed in the viewfinder. If you set a shutter speed that is the same as or slower than the cameras

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 <

> button again. Then <

> will disappear.

Multi flash mode cannot be set in high-speed sync mode.

Over-temperature protection may be activated after 15 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 4 <

> button so that <

> is displayed on the LCD panel. M: Manual Flash The flash output is adjustable from 1/1 full power to 1/128th power in 1/3rd 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 <

> is displayed. 2. Turn the Select Dial to choose a desired flash output amount. 3. Press <SET> button again to confirm the setting. Flash Output Range The following table makes it easier to see how the stop changes in terms of f/stop when you increase or decrease the flash output. For example, when you decrease the flash output to 1/2, 1/2-0.3, or 1/2-0.7, and then increase the flash output to more than 1/2, 1/2+0.3, 1/2+0.7, and 1/1 will be displayed. Figures displayed when reducing flash output level 1/10.3 1/1-0.7 1/2-0.3 1/2-0.7 1/2 1/4 1/2+0.7 1/2+0.3 1/4+0.7 1/4+0.3 Figures displayed when increasing flash output level 1/1 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. Turn the Select Dial to choose a desired flash output. 3. Set the flash frequency and flash times. Press Function Button 3 <

> button to select the flash times. Turn the Select Dial to set the number. Press Function Button 4 <

> button to select the flash times. Turn the Select Dial to set the number. 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 withbuLb.

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. Maximum Stroboscopic Flashes:

Flash Output Hz 1/4 1/8 1/16 1 7 14 30 2 6 14 30 3 5 12 30 4 4 10 5 4 8 20 20 6-7 8-9 3 6 20 3 5 10 1/32 1/64 1/128 Hz Flash Output 1/4 1/8 1/16 1/32 1/64 1/128 60 90 60 90 60 90 50 50 80 80 100 100 100 100 100 40 70 90 30 60 80 10 11 12-14 15-19 20-50 60-199 2 4 8 20 50 70 2 4 8 20 40 70 2 4 8 20 40 60 2 4 8 18 35 50 2 4 8 16 30 40 2 4 8 12 20 40 If the number of flashes is displayed as --, the maximum number of flashes will be as shown in the following table regardless of the flash frequency. Flash Output 1/4 Number of 2 1/8 4 1/16 1/32 1/64 1/128 8 12 20 40 Flashes Wireless FlashOptic Transmission This product supports wireless flash application and functions as either a master or a slave unit. As a master unit, it can control Canon speedlites e.g. 580EXII, 600EX-RT via wireless. As a slave unit, it can receive wireless signals of Canon speedlites e.g. 580EXII, 600EX-RT and commanders of Canon cameras e.g. 7D/60D/600D.

You can set up two to three slave groups for E-TTL II autoflash shooting. With E-TTL II autoflash, you can easily create various lighting effects.

Any flash settings (of flash exposure compensation, high-speed sync, FE lock, FEB, manual flash, Multi flash) on the master unit will be automatically sent to the slave units. So the only thing you need to do is to set the master unit to ETTL mode without any operation for the slave units at all during the shooting.

This flash can work in ETTL autoflash, M manual flash, and Multi stroboscopic flash modes when set as a master unit. Positioning and Operation Range

Even with multiple slave units, the master unit can control all of them via wireless.

In this user manual, master unit refers to the camera flash on a camera and slave unit will be controlled by the master unit. 1Wireless Settings You can switch between normal flash and wireless flash. For normal flash shooting, be sure to set the wireless setting to OFF. Master Unit Setting 1. Press <

> button so that <

>and<

> are displayed on the LCD panel. Slave Unit Setting 1. Press <

panel.

> button again so that <

>and <

> are displayed on the LCD 2. Master Units Flash OFF When the master unit is set to OFF, only the slave units will fire a flash. 1. Press Function Button 4 so that <

> is displayed on the LCD panel. 2. Press Function Button 1 <

> to control the ON/OFF of the master unit.

<

>The master unit flash firing is ON.

<

>The master unit flash firing is OFF. Even if the master 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 master unit and the slave unit(s) must be set to the same. 1. Press Function Button 4 so that <

> is displayed on the LCD panel. 2. Press Function Button 1 so that <

> is displayed on the LCD panel. Turn the Select Dial to choose a channel ID from 1 to 4. 3. Press the <SET> button to confirm. 4. ETTLFully Automatic Wireless Flash Shooting Using Automatic Wireless Flash with a Single Slave Unit 1Master Unit Setting Attach a TT685C camera flash on the camera and set it as the master Unit. As a master unit, TT685C can control Canon speedlites e.g. 580EXII, 600EX-RT via wireless. 2Slave Unit Setting Set the other camera flash as the wireless slave unit. As a slave unit, TT685C can receive wireless signals of Canon speedlites e.g. 580EXII, 600EX-RT and commanders of Canon cameras e.g. 7D/60D/600D. 3Check the communication channel. If the master unit and slave unit(s) are set to a different channel, set them to the same channel. 4Position the camera and flashes. Position the camera and flashes as the picture shows. 5Set the master units flash mode to <ETTL>. Set the master units flash mode to <ETTL>. For shooting, <ETTL> will automatically be set for the slave unit. Set the master unit flash firing as ON to fire a flash. 6Check that the flash is ready. Check that the master flash ready indicator is lightened. When the slave flash ready indicator is ready, the AF-assist beam lighting area will blinks at 1 second intervals. 7Check the flash operation. Press the master units Test Button<

>

Then, the slave unit will fire. If not, adjust the slave units angle toward the master unit and distance from the master unit. Using Automatic Wireless Flash with Multiple Slave Units When stronger flash output or more convenient lighting operation is needed, increase the number of slave units and set it as a single slave unit. To add slave units, use the same steps as setting automatic wireless flash with a single slave unit. Any flash group can be set (A/B/C). When the number of slave units is increased and the master 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. The slave unit might be out of order or fire an unwanted flash due to the nearby fluorescent lamp or computer screen.

Press the depth-of-field preview button on the camera to fire a modeling flash.

If the slave units auto power off function is workable, press the master units test button to power it on. Please note that test firing is unavailable during the cameras regular metering time.

The effective time of slave auto power off is changeable.

By making some settings, the auto AF-assist transmitter will not blink after the slave units flash ready indicator is lightened. Using Fully Automatic Wireless Flash The FEC and other settings that set on the master unit will also be appeared on the slave unit automatically. The slave 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** High-Speed Sync

/Page**

Flash Exposure Bracketing

/Page** Manual FlashPage**

Flash Exposure LockPage** Stroboscopic FlashPage**

The firing frequency of stroboscopic flash during the optic transmission shooting can be set from 1Hz to 199Hz. Press Function Button 4 so that <

><

><

> are displayed. About Master Unit Use two or more master units. By preparing several cameras that with master units flash attached, cameras can be changed in shooting while keeping the same lighting source (slave unit). ETTL: Use the Wireless Shooting of Flash Ratio Auto Flash Shooting with Two Slave Unit Divide the slave units into A and B groups and balance their shooting illumination (flash ratio). Auto control exposure to make the total output of A and B flash groups up to standard exposure. 1Setting the flash groups of slave unit. Set the flash as slave unit. Press Function Button 3<

> and choose <A> or <B>. Set one slave unit as <A>, the other as <B>. 2Setting <

>. Step 2 to Step 4 are set on the master unit. Press the Function Button 4 on the master unit so that <

> is displayed. 3Setting <RATIO A:B>. Press Function Button 2 <

> so that <RATIO A:B> is displayed. 4Setting flash ratio. Press Function Button 3 <

>. Turn the Select Dial to set the amount of flash ratio and press<SET> button to confirm. 5Taking the picture. The slave units will flash according to the flash ratio. Auto Flash Shooting with Three Slave Unit 1Setting the slave group <C>. Use the same method of step 1 to set the slave unit of flash group<C>. 2Setting <RATIO A:B C>. Use the same method of step 1 and step 3 to set the master unit as <RATIO A:B C>. 3Setting flash exposure compensation. Use the same method of step 1 to set the slave unit of flash group<C>. Press Function Button 2 <

>. Turn the Select Dial to set the amount of flash exposure compensation and press<SET> button to confirm. About Slave Group Control If three slave units are all set to < > in terms of slave ID, these slave units will be controlled as if they were one camera flash in slave group A. slave group A When setting < RATIO A:B C >, group A, B and C will fire a flash synchronously; when setting< RATIO A:B >, group C will not fire a flash. If shooting under the situation that group C is toward the main shooting subject, over exposure might occurred. In some EOS film cameras that support E-TTL autoflash, you cannot perform multiple flash wireless shooting with a flash ratio setting. The flash ratio of 8:1 to 1:1 to 1:8 is equivalent to 3:1 to 1:1 to 1:3 (1/2 step increment). The details of the flash ratio settings are as follows. 5. 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 slave unit (firing group). Set all parameters on the master unit. 1Setting the flash mode to <M>. 2Setting the number of flash groups. When <

> is displayed, press the Function Button 2 <

> to set the groups to fire. The setting changes as follows each time you press the button:

ALLRATIO OFF A/BRATIO AB A/B/CRATIO ABC 3Setting flash output. Press Function Button 3 <

>. Turn the Select Dial to set the flash output of the groups. Press <SET> button to confirm. 4Taking the picture. Each group fires at the set flash ratio. WhenALL< RATIO OFF>isset,setA,BorCasthefiringgroupfortheslaveunits. To fire multiple slave units with the same flash output, select ALL < RATIO OFF > in step 2. Setting <M> Flash Mode You can directly operate the slave unit to manually set the manual flash or stroboscopic flash. 1Setting the slave unit. 2Setting flash mode to <M>. Press <> button so that < M > is displayed. Set the manual flash output. 6Multi: Manual Wireless Flash Shooting 1Setting <MULTI> stroboscopic flash. Press <MODE> button so that <MULTI> is displayed. Setting the stroboscopic flash. The firing frequency of stroboscopic flash during the optic transmission wireless shooting can be set from 1Hz to 199Hz (settings from 250 Hz to 500 Hz are not available). Wireless Flash Shooting: Radio

(2.4G) Transmission Using a flash (master/slave) 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 /ETTL autoflash shooting just by setting the master unit to <ETTL>. Positioning and Operation Range (Example of wireless flash shooting) Autoflash Shooting with One Slave Unit Use the supplied mini stand to position the slave unit. Before shooting, perform a test flash and test shooting. The transmission distance might be shorter depending on the conditions such as positioning of slave units, the surrounding environment and whether conditions. Wireless Multiple Flash Shooting You can divide the slave units into two or three groups and perform E-TTL II/E-TTL 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 5 groups. Auto Shooting with Two Slave Groups Auto Shooting with Three Slave Groups Wireless shooting using radio transmission has advantages over wireless shooting using optic transmission, such as being less affected by obstacles, and not having to point the slave units wireless sensor toward the master unit. The main functional differences are as follows:

Function Distance Channel Radio Transmission Optic Transmission 100m 1~32 15m 1~4 A/B/C Power OFF1/128~1/1 1/128~1/1 Other Applications Wireless Control Function The flash unit is built in with a Wireless Control Port so that you can wirelessly adjust the power level of the flash and the flash triggering. To control the flash wirelessly, you need a FT-16S remote control set (on-camera and on-flash). Insert its receive end into the Wireless Control Port on the flash and insert the transmit end into the camera hot shoe. Settings made on the hotshoe-mounted transmit and receive ends will be wirelessly communicated to the flash. Then you can press the camera shutter release button to trigger the flash. You can also hold the transmit end at hand to control your off-camera flash.

For full instructions on the use of FT series remote control, see its user manual. Sync Triggering The Sync Cord Jack is a 3.5mm plug. Insert a trigger plug here and the flash will be fired synchronously with the camera shutter. Modeling Flash If the camera has a depth-of-field preview button, pressing it will fire the flash continuously for 1 second. This is called modeling flash. It enables you to see the shadow effects on the subject and the lighting balance. You can fire the modeling flash during wireless or normal flash shooting.

To avoid overheating and deteriorating the flash head, do not fire the modeling flash for more than 10 consecutive times. If you fire the modeling flash 10 consecutive times, allow at least 10 minutes break for the camera flash.

The modeling flash cannot be fired with the EOS 300 and Type-B cameras. 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 Effective Range Center 0.6~10m / 2.0~32.8 feet Periphery 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. 0-360 horizontally and -7-90 vertically

If the wall or the ceiling is too far away, the bounced flash might be too weak and result in underexposure.

The wall or the ceiling should be a plain, white color for high reluctance. 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 subjects 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.

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 best catchlight effect, stay 1.5m/4.9ft away from the subject. ZOOM: Setting the Flash Coverage and Using the Wide Panel The flash coverage can be set automatically or manually. It can be set to match the lens focal length from 24 mm to 105mm. Also, with the built-in wide panel, the flash coverage can be expanded for 14mm wide-angle lenses. InManualZoommode,pressthe< ZOOM/C.FN >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. Using the Wide Panel Pull out the wide panel and place it over the flash head as shown. The flash coverage will then be extended to 14 mm.

* The catchlight panel will come out at the same time. Push the catchlight panel back in.

* The < ZOOM/C.FN > button will not work. 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 Functions Setting Signs Settings &

Descriptions Custom Functions No. m/ft Distance indicator APO Auto power off FEB ACL FEB auto cancel m ft ON OFF ON OFF m feet ON OFF ON OFF FEB FEB order 0 +

C.Fn-00 C.Fn-01 C.Fn-03 C.Fn-04 AF AF-assist beam

- 0 +

ON OFF ON OFF Sv APOT Slave auto power off 60min 60min timer 30min 30min BEEP Beeper ON OFF ON OFF 12sec Off in 12 sec. C.Fn-08 C.Fn-10 C.Fn-20 LIGHT Backlighting time LCD LCD contrast ratio OFF ON 0~9 Always off C.Fn-22 Always lighting 10 levels 1. Press < Zm/C.Fn > Backlight/Custom Setting Button for 2 seconds or longer 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 <MODE> button, the camera will be ready to shoot. 4. In the C.Fn states, long press the Clearbutton for 2 seconds until OKis displayed on the panel, which means the values in C.Fn can be reset. Control with the Cameras 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 cameras menu screen. For the menu operation procedure, refer to your cameras 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 flashs settings

Custom Functions of Camera Flash C.Fn-00, C.Fn-01C.Fn-03C.Fn-04C.Fn-08, C.Fn-10, C.Fn-20, and C.Fn-22. Clear All Flash Custom Functions Flash function settings screen Flash C.Fn settings screen

*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 flashs 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 30 continuous flashes in fast succession at 1/1 full power. After 30 continuous flashes, allow a rest time of at least 10 minutes.

If you fire more than 30 continuous flashes and then fire more flashes in short intervals, the inner over-temperature protection function may be activated and make the recycling time over 10 seconds. 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:

Power Output Level Number of Flashes 1/1 1/2 +0.7 1/2 +0.3 1/2 1/4+0.3,+0.7 1/8+0.3,+0.7 1/16+0.3,+0.7 1/32+0.3,+0.7 30 40 50 60 100 200 300 500 1/64+0.3,+0.7 1000 1/128+0.3,+0.7 Number of flashes that will activate over-temperature protection in high-speed sync triggering mode:

Power Output Times 1/1 1/2+0.3,+0.7 1/4+0.3,+0.7 1/8+0.3,+0.7;

15 20 30 1/16+0.3,+0.7 40 1/32+0.3,+0.7 1/64+0.3,+0.7;

50 1/128+0.3,+0.7 2. Other Protections The system provides real-time protection to secure the device and your safety. The following lists prompts for your reference:

Prompts on LCD Panel Meaning E1 E2 E3 E9 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. The system gets excessive heat. Please allow a rest time of 10 minutes. The voltage on two outlets of the flash tube is too high. Please send this product to a maintenance center. There are some errors occurred during the upgrading process. Please using the correct firmware upgrade method. Firmware Upgrade This flash supports firmware upgrade through the USB port. Update information will be released on our official website.

USB connection line is not included in this product. The USB port is a standard Micro USB socket. Common USB connection line is applicable. Technical Data Model Type TT685C Compatible Cameras Canon EOS cameras (E-TTL II autoflash) Guide No. ( 1/1 output @

60 (m ISO 100) 200mm) 190 (feet ISO 100) 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 360 horizontally and -7 to 90 vertically Flash Duration 1/300 to 1/20000 seconds Exposure Control Exposure control system E-TTL II autoflash and manual flash Flash exposure Manual. FEB: 3 stops in 1/3 stop increments (Manual FEC and compensation (FEC) 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 (Optic transmission and 2.4G transmission) Wireless flash function Master, Slave, Off Controllable slave 3 (A, Band C) groups Transmission Optic Indoors: 12 to 15 m / 39.4 to 49.2 ft. range

(approx.) Outdoors: 8 to 10 m / 26.2 to 32.8 ft. Master unit reception angle: 40 horizontally, 30 vertically 2.4G 100m Channels Optic 4 (1, 2, 3, and 4) 2.4G 32 (1~32) Slave-ready indicator Two red indicators blink Modeling flash Fired with cameras depth-of-field preview button Auto Focus Assist Beam Effective range (approx.) Center: 0.6~10m / 2.0~32.8 feet Periphery: 0.6~5m / 2.0~16.4 feet Power Supply AA batteries Ni-MH batteries (recommended) or 4*LR6 alkaline batteries Recycle time Approx. 0.1-2.6 seconds (eneloop Ni-MH batteries of Panasonic). Red LED indicator will light up when the flash is ready. Full power flashes Approx. 230 (2500mA Ni-MH batteries) Power saving Power off automatically after approx. 90 seconds of idle operation. (60 minutes if set as slave) Sync Triggering Hotshoe, 3.5mm sync line, Wireless control port Mode Color Temperature Dimensions 5600200k W x H x D 64 *76*190 mm Weight without 410g battery) Weight with battery 530g Troubleshooting If there is a problem, refer to this Troubleshooting Guide. TheCameraFlashcannotbecharged.

Thebatteryisinstalledinthewrongdirection.

Installthebatteryisinthecorrectdirection.

Thecameraflashsinternalbatteryisexhausted.

If<

>appearsandblinksontheLCDpanel,replacethebatteryimmediately. TheCameraFlashdoesnotfire.

Thecameraflashisnotattachedsecurelytothecamera.

Attachthecamerasmountingfootsecurelytothecamera.

TheelectricalcontactsoftheCameraFlashandcameraaredirty.

Cleanthecontacts.

<

>or<

>isnotdisplayedintheviewfinderofcamera.

Waituntiltheflashisfullyrecycledandtheflashreadyindicatorlightsup.

Iftheflashreadyindicatorlightsup,but<

>or<

>isnotdisplayedintheviewfinder,check whetherthisflashunitissecurelyattachedtothecamerahotshoe. Iftheflashreadyindicatordoesnotlightupafteralongwait,checkwhetherthebatterypoweris

enough.Ifthebatterypowerislow,<

>willappearandblinkontheLCDpanel.Pleasereplace thebatteryimmediately. Thepowerturnsoffbyitself.

After90secondsofidleoperation,autopowerofftookeffectiftheflashissetasmaster.

Presstheshutterbuttonhalfwayorpressanyflashbuttontowakeup.

After60minutes(or30minutes)ofidleoperation,theflashunitwillentersleepmodeifitissetas slave.

Pressanyflashbuttontowakeup. Autozoomdoesnotwork.

Thecameraflashisnotattachedsecurelytothecamera.

Attachthecameraflashsmountingfoottothecamera. Theflashexposureisunderexposedoroverexposed.

Therewasahighlyreflectiveobject(e.g.glasswindow)inthepicture.

UseFElock(FEL).

Youusedhighspeedsync.

Withhighspeedsync,theeffectiveflashrangewillbeshorter.Makesurethesubjectiswithinthe effectiveflashrangedisplayed.

YouusedManualFlashmode.

SettheflashmodetoETTLormodifytheflashoutput. Photoshavedarkcornersoronlypartsofthetargetsubjectareilluminated.

Thefocallengthoflensexceedstheflashcoverage.

Check the flash coverage you set. This flash unit has the flash coverage between 20 and 200mm, whichfitsmediumformatcameras.Pullthewidepanelouttoextendtheflashcoverage. Compatible Camera Models This flash unit can be used on the following Canon EOS series camera models:

5D Mark III 5D Mark II 6D 7D 60D 50D 40D 30D 650D 600D 550D 500D 450D 400D Digital 1000D 1100D

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 Warning Any Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. 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. FCC Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. 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.