Godox TT685C User Manual
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Godox TT685C User Manual

Godox TT685C User Manual

Ttl camera flash for canon
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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.
GODOX PHOTO EQUIPMENT CO.LTD
TTL Camera Flash
TT685C
For Canon

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Summary of Contents for Godox TT685C

  • Page 1 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.

  • Page 2: For Your Safety

    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.
  • Page 3 Control Panel Dot-matrix LCD Panel What’s 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 Mode—M: Manual Flash...
  • Page 4 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 Camera’s Menu Screen Protection Function Technical Data Troubleshooting Firmware Upgrade Compatible Camera Models Maintenance Conventions used in this Manual...

  • Page 5: Name Of Parts

    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.

  • Page 6: Separately Sold Accessories

    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 What’s in the Box of TT685C? 1. Flash unit 2. Mini stand 3. Protection case 4. Instruction manual Separately Sold Accessories...

  • Page 7: Attaching To A Camera

    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.

  • Page 8: Fec: Flash Exposure Compensation

    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.
  • Page 9 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.
  • Page 10 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.

  • Page 11: Second-Curtain Sync

    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.

  • Page 12: Multi: Stroboscopic Flash

    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.
  • Page 13 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.
  • Page 14 1/32 1/64 1/128 Hz  12-14 15-19 20-50 60-199 Flash  Output  1/16 1/32 1/64 1/128 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 1/16 1/32...

  • Page 15: Wireless Settings

    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.

  • Page 16: Master Unit's Flash Off

    > button so that < >and< > are displayed on the LCD panel. Press < Slave Unit Setting > button again so that < >and < > are displayed on the LCD Press < panel. 2. Master Unit’s Flash OFF When the master unit is set to OFF, only the slave units will fire a flash.
  • Page 17 Using Automatic Wireless Flash with a Single Slave Unit 1、Master 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.
  • Page 18 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”.
  • Page 19 wireless flashes according to the same methods with normal flash shooting. ● Flash Exposure Compensation （ /  Page** ） ● High-Speed Sync （ /  Page** ） ● Flash Exposure Bracketing（ /  Page** ） ● Manual Flash（ Page** ） ● Flash Exposure Lock（ Page** ） ●...
  • Page 20 3、Setting <RATIO A:B>. ● Press Function Button 2 < > so that <RATIO A:B> is displayed. 4、Setting flash ratio. ● Press Function Button 3 < >. ● Turn the Select Dial to set the amount of flash ratio and press<SET> button to confirm. 5、Taking the picture.

  • Page 21: M: Wireless Flash Shooting With Manual Flash

      ● 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.
  • Page 22 A/B/C（RATIO A：B：C）。 3、Setting flash output. ● Press Function Button 3 < >. Turn the Select Dial to set the flash output of the groups. Press <SET> button to confirm. 4、Taking the picture. ● Each group fires at the set flash ratio.  ...
  • Page 23 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>.
  • Page 24 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. ●...

  • Page 25: Other Applications

    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.
  • Page 26 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”...

  • Page 27: Creating A Catchlight

    Creating a Catchlight With the catchlight panel, you can create a catchlight in the subject’s eyes to add life to the facial expression. Point the flash head upward by 90°.   Pull out the wide panel. The catchlight panel will come out at the same time.  Push the wide panel back in.

  • Page 28: C.fn: Setting Custom Functions

    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 <...
  • Page 29 - → 0 → + AF-assist beam C.Fn-08 60min 60min Slave auto power off Sv APOT C.Fn-10 timer 30min 30min BEEP Beeper C.Fn-20 12sec Off in 12 sec. LIGHT Backlighting time Always off C.Fn-22 Always lighting LCD contrast ratio 10 levels Press <...

  • Page 30: Control With The Camera's Menu Screen

    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.

  • Page 31: Protection Function

    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.

  • Page 32: Other Protections

    Number of flashes that will activate over-temperature protection in high-speed sync triggering mode: Power Output Times 1/2（+0.3,+0.7） 1/4（+0.3,+0.7）； 1/8（+0.3,+0.7）; 1/16（+0.3,+0.7）； 1/32（+0.3,+0.7） 1/64（+0.3,+0.7）; 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...

  • Page 33: Firmware Upgrade

    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 TT685C •Type Compatible Cameras Canon EOS cameras (E-TTL II autoflash) Guide No. ( 1/1 output @...
  • Page 34 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...

  • Page 35: Troubleshooting

    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 5600±200k Temperature •Dimensions W x H x D 64 *76*190 mm...

  • Page 36: Compatible Camera Models

    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 master.  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  slave.  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. Pull the wide panel out to extend the flash coverage. ...

  • Page 37: Maintenance

    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.
  • Page 38 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.

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