Godox MF-R76S+ Dental Ring Flash User Manual

Godox MF-R76S+ Dental Ring Flash

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Thank you for purchasing a GODOX product
Macro ring flash MF-R76S+is a powerful macro flash for close-up photography, especially oral dental photography. It produces a flat, balanced light that eliminates unwanted shadows by illuminating the teeth from every direction, providing sharp and focused images of the patients’ teeth even when in dark environment.

Main Features

• No igniting and no shadows in macro shooting.
• Accurate power adjustment from 1/1 full power to 1/256 at l/3EV each stop. Equipped with 2.4G wireless transmission, workable as a transmitter or receiver unit in wireless flash group.
• Lithium battery power supply, up to 550 flash times in 1/l full power.
• Easy to install and suitable for camera lenses with a diameter of 49mm-77mm.
• 2 focus assist beams and l O levels of brightness adjustment.
• Simple user’s interface, convenient and comfortable operation.

Warning

• Always keep this product dry.

• 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 h it. Otherwise, electric shock may occur if you touch the electronic parts inside it.

• Do not leave or store the flash unit if the ambient temperature reads over 50°C.

• Do not fire the flash direct ly into the eyes (especial ly those of babies) w ithin short distances. Otherwise visual impairment may occur

• Do not use the flash un it in the presence of flammable gases, chemicals and other similar materials. In certain circumstance, these materials may be sensitive to the strong light
  emitting from this flash un it and fire or electromagnetic inter ferrous may result.

• As this product is not waterproof, do not use in rain or in damp conditions.

Name of Parts

Light Body

1. Flash Head
2. MODE Button
3. Focus Assist Beam Button (7 ~ 1 O level)
4. MENU/Lock Button
5. RATIO Button
6. Test Button
7. SET Button
8. Select Dial
9. Power Switch Button
10. Lock Ring
11. Hotshoe
12. Flash Tube A
13. Flash Tube B
14. Battery Remove Button
15. Controller
16. 2.5mm Sync Cord Jack
17. Connecting Cable
18. Lithium Battery
19. Adapter Ring Connecting Port
20. Detaching Mount
21. Display
22. Type-C Port

Display

TTL Auto Flash Mode

TTL: TTL Auto Flash

2.4G Wireless Transmission as a Transmitter Unit

• M: Flash Group M
• A: Flash Group A
• B: Flash Group B
• C: Flash Group C

2.4G Wireless Transmission as a Receiver Unit
RX: Receiver Flash Group (A, B, CJ)

What’s in the Box

Battery

1. This product uses 7.2V/300DmAh lithium battery which has long runtime.
2. It is reliably safe. The inner circuit is against overcharge, over discharge, overcurrent, and short circuit.
   Tips: Dental ring flash MF-R76S+ is compatible with Godox lithium battery VB26 and ADl00Pro lithium batteryWBl00  (7.2V/2600mAh or7.2V/3200mAh)

Cautions

1. Do not short circuit.
2. Do not expose to rain or immerse into water. This battery is not water proof.
3. Keep out of reach of children.
4. No over 24 hours’ continuous charging.
5. Store in dry, cool, ventilated places.
6. Do not put aside or into fire.
7. Dead batteries should be disposed according to local regulations.
8. If the battery had ceased using for over 3 months, please make a full recharge.
9. Please charge the battery to approx. 60% before being placed for long time.

Loading and Unloading the Battery

1. Unloading
   Long press the battery remove button and push down the battery to unload it.

2. Loading
   Insert the lithium battery according to the direction, push in until it is locked.

Installation of the Controller

1. Slide the hots hoe of the controller to completely insert it into the camera.

2. Tightening the lock ring: Rotate anticlockwise to tighten the lock ring.

Disassembly of the Controller

1. Loosening the lock ring
   Rotate clockwise to loosen the lock ring and take down the controller.

Installation of the ring flash

1. Rotate clockwise the proper adapter ring and mount it to the front of the lens.
   Tips: There are 8 adapter rings applicable to MF-R76S+: 49mm, 52mm, 55mm, 58mm, 62mm, 67mm, 72mm and 77mm.

2. Insert the lens with adapter ring into the adapter ring connecting port until it is locked.
   Note: It is normal that the mounted ring flash can be rotated 360″

Disassembly of the ring flash
Slightly pull out the remove buckle on the back, and then rotate to the right to remove the ring flash.

Power switch
Toggle Power switch button to< ON> to power on, and< OFF> to power off.

TTL Flash Mode
Short press the button to switch to mode, and the< TTL> icon will be on the left upper corner of the display.
Note: When the shutter button is fully pressed, the ETTL flash will fire a pre-flash that the camera will use to calculate exposure and flash output the instant before the photo is taken.

1. 0verall Flash Setting
   Short press the Ratio button to make< TTL> icon and< >FEB value (-3~+3) on the display.Turn the select dial to adjust the FEB value from -3 to +3 with an increment of 1/3 each stop.
   

2. A:B Flash Ratio Setting
   Adjust the flash ratio of flash tube A to flash tube B, to achieve brightness to darkness ratio in different scenes.
   Short press the Ratio button to make icon and on the display.Short press the SET button to select FEB/A:B flash ratio, turn the select dial to adjust the FEB/A:B flash ratio. The FEB value is adjustable from -3 to +3 with an increment of 1/3 each stop, while A:B flash ratio is adjustable from 8:1 to l :8 with an increment of 1/2 each stop (for example: 8:1 -5.6:l – 4:1 -2.8:l -2:l -1.4:l -l:l -l:l.4-1:2- 1:2.8 -l:4-1:5.6-l:8).
   

3. Single Group (A or B) Flash Setting
   Short press the Ratio button to make FEB value (-3~+3) on the display.
   

Short press the SET button to select group A flash/group B flash, turn the select dial to adjust the FEB value from -3 to +3 with an increment of 1/3 each stop.

Note:

1. “0.3” in FEB means 7/3 stop, “0.7” in FEB means 2/3 stop
2. Adjust the FEB value to “±0” can cancel the FEB.

M (Manual) Flash Mode
Short press the MODE button to switch to manual flash mode, and the icon will be on the left upper corner of the display.
There are 3 flash modes: flash tube A and B flash in different flash ratio, only flash tube A or B flashes, flash tube A and B flash in the same flash ratio.

1. Overall Flash Ratio Setting
   Short press the Ratio button to make icon and output power on the display.
   Turn the select dial to adjust the output power from l/l full power to l/256 with an increment of 1/3 each stop.
   Note: The minimum output is 1/64 when HSS is turned on
   

2. A:B Flash Output Setting
   Short press the Ratio button to make  icon and two output values on the display. Short press the SET button to select group A output /group B output, turn the select dial to adjust the group A output /group B output from l/l full power to l/256 with an increment of 1/3 each stop.
   

3. Single Group Flash Output Setting Short press the Ratio button to make icon and single group output value on the display.
   Short press the SET button to select group A output /group B output, turn the select dial to adjust the group A output /group B output from l/l full power to l/256 with an increment of 1/3 each stop.
   Note: If group A outputs flash, then group Bis off.

Transmitter Unit Setting
Set the flash status as a transmitter unit in the menu (please refer to the wireless setting).

Turn the select dial to switch group
M/A/B/C. Turn the SET button to select. then short press the MODE button to switch to TTL/Mi–. Turn the select dial in TTL mode to adjust the FEB value from -3 to +3 with an increment of 1/3 each stop. Turn select dial in M mode to adjust the output power from 1/1 full power to 1/256 with an increment of /3 each stop.

Note: TTL means TTL auto flash, M means manual flash, — means off.
The parameter values of A, B, C in the interface are parameter values of receiver A, B, C. One transmitter unit can control four receiver units at most, and the transmitter unit output is group M output.
The wireless channel of the transmitter unit should be set the same as the receiver units in order to control them, please refer to the wireless setting.

Receiver Unit Setting
Set the flash status as a receiver unit in the menu (please refer to the wireless setting below).
Short press the SET button or turn the select dial to switch among A/B/C

• A means the flash is set as receiver A unit.
• B means the flash is set as receiver B unit.
• C means the flash is set as receiver C unit.

The wireless channel of the transmitter unit should be set the same as the receiver units, please refer to the wireless setting.

High Speed Sync
MF-R76S+ is capable of producing high-speed flashes synchronized to the maximum speed of the camera’s shutter, making it especially handy when taking pictures of the subject at soft light background.

1. Short press the MENU/lock button to enter the menu settings.
2. Turn the select dial to< SYNC >.
3. Short press the SET button to enter setting.
4. Turn the select dial to< iH >
5. Short press the MENU/lock button to return to the main interface, the< iH > icon will be on the right upper corner.

Note: The minimum power of M (manual) flash is 1/64 when HSS is on.

ID First Curtain Sync
First curtain flash refers to the flash fires at moment when the first curtain is fully opened, this function is suitable for shooting scenes in general situations.

• Short press the MENU/lock button to enter the menu settings.
• Turn the select dial to .
• Short press the SET button to enter setting.
• Turn the select dial to< ID >
• Short press the MENU/lock button to return to the main interface.

Focus Assist Beams
Short press the focus assist beam button to turn on or turn off the modeling light.
Focus assist beam adjustment Turn on the focus assist beam, long press focus assist beam button to enter the setting interface, then turn the select dial to adjust in 1-10 stops. After which, long press to exit.

Locking Function
Long press the MENU/lock button to lock or unlock the display.
Short press any button in locked status won’t work, and that’s to avoid maloperation in shooting.
Note: Long press the MENU/lock button won’t work in menu interface means it’s not locked

Sync Cord Jack Trigger
The sync cord or trigger plug can be inserted into the 2.5mm sync port to fire the flash.

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 overtemperature protection function may be activated and is shown on the display. If this occurs, allow a rest time of about 1 D minutes, and the flash unit will then return to normal.

Number of flashes that will activate over-temperature protection:
Number of flashes that will activate over-temperature protection in HSS mode:

Other Protections

Light Body Reset
Long press the focus assist beam button and MENU button until “RESET” icon appears, when the “RESET” icon disappears means reset completed.

Menu Setting

WIRELESS

| OFF| Turn off wireless
TX| Turn on transmitter’s wireless
RX| Turn on receiver’s wireless
CH| 07-32| 32 channels
ID| OFF| Turn off ID
07-99| 99 IDs
TCM| OFF| Off
ON| On (Short press the MODE button can realize TCM transform when this function is switched on. This function is unavailable in wireless flash or single port flash.)
SYNC| ll>| First curtain sync
tH| High speed sync
RF DIST| 0.3-70m| Trigger distance: 0.3-1Om
7-lOOm| Trigger distance: 1-lOOm
MODEL| CONT| Turn on the modeling light, it will not go out when the flash fires.
INTER| Turn on the modeling light, it will go out when the flash fires.
STBY RX STBY| ON| Turn on sleep mode when using as a transmitter unit.
OFF 60 mins| Turn off sleep mode when using a as a transmitter unit.
Enter sleep mode after 60 minutes of idle use when using as a receiver unit.
30 mins| Enter sleep mode after 30 minutes of idle use when using as a receiver unit.
OFF| Turn off sleep mode when using as a receiver unit.
BL| 12 secs| Backlight off over 12 seconds of idle use.
OFF| Backlight always off
ON| Backlight always lighting
LCD| -3~+3| The contrast ration can be set in7 levels.

Technical Data

All the above data are based on God ox testing standards.
Design and specifications may be subject to change without notice.

List of Compatible Sony Cameras
ILCE-6000I, a9, A7R, A7RIII, DSC-RXlO, A7IV, A7C, A7R5, A7RIV, A7M3, ZV-ElO, a6400, A7RII

Note:

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

Practical guide to dental photography
For all the extra- and intra-oral dental photographs, the camera should be set to:

• Manual exposure mode Shutter speed of l/200s ISO 100

Extra oral views
Set up-positioning of photographer
For the best result of extra oral views, the camera should be positioned parallel to the patient at a constant distance of approximately 1.5m.

Intra oral views
Intra oral views are typically taken whilst the patient is in the dental chair as this simplifies the positioning of the patient and photographer for some of the standard views. Make sure to keep the lens set to manual focus and follow the guidance for each view to set the focus distance and the aperture correctly. Using manual focus will ensure that photos taken at different stages of treatment can be easily compared to show progress.

Troubleshooting Guide

Please refer to the guide table below when problems occur.

flash securely on the camera.
The electronic contacts of the flash and camera are dirty| Clean the electronic contacts of the flash and camera

Power down automatically

| The power will automatically shut down over 90s of ladle use when using as a transmitter unit and the STBY is on.| Press any button to wake up
The power will automatically shut down over 60min or 30min of idle use when using as a receiver unit and the RX STBY is set as 60mins or 30mins.| Press any button to wake up
Can not boot up| Battery runs out or damages| Please charge or replace the battery.
Flash does not fire as a receiver unit| The receiver’s flash group is incorrect. For

example, group B of the transmitter ls off but the receiver is set as group B.

| Set the flash group of receiver correctly.
The channels of transmitter and receiver are inconsistent.| Please set the channels of transmitter and receiver to the same, e.g., set the channel of transmitter to 01, and receiver’s to 01 as well
The receiver is out of the transmission distance of the transmitter| Please set the receiver within the transmission distance (0-1 OOm) of the transmitter.
The transmitter and receiver are too close for transmission.| Please set the triggering distance in MENU-RF DIST as 0.3m to 70m.

Firmware Upgrade

1. This product supports firmware upgrade through the Type-C USB port, please use Type-C USB connection line (sold separately).
2. As the firmware upgrade needs the support of Godox G3 software, please download and install the “Godox G3 firmware upgrade software” before upgrading from our official website https: www.godox.com. Then, choose the related firmware file.
3. Please refer to the latest electronic version of the instruction manual.

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.)
2. To adjust the channel CH setting on the flash trigger (add 70+ channels) and use the channel which is not disturbed. Or turn off the other 2.4G equipment in working.
3. 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.
4. 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).
5. Whether the distance between the flash trigger and the flash is too close or not (<0.Sm).
6. Please turn on the “close distance wireless modren on the flash trigger.
7. Please set the MENU- -DIST to 0-30m.
8.  Whether the flash trigger and the receiver end equipment are in the low battery states or not
9. Please replace the battery.

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.

Warning
Operating frequency: 2472.99MHz- 2464.49MHz

Declaration of Conformity
GODOX Photo Equipment Co.,Ltd. hereby declares that this equipment are in compliance with the essential requirements and other relevant provisions of Directive 2014/53/EU. In accordance with Article 70(2) and Article 70(70), this product is allowed to be used in all EU member states.
For more information of DoC, Please click this web link:https://www.godox.com/D0C/Godox­_MF- R76C_DOC.pdf.
The device complies with RF specifications when the device used at 0mm from your body.

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 safe-keep it. Thank you!

| Model I Product Code Number
---|---
Customer Information| Name I Contact Number
Address
Seller Information| Name
Contact Number
Address
Date of Sale
Note

( 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 isimplemented 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 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 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.

( Inapplicable Cases)
The guarantee and service offered by this document are not applicable in the following cases: The product or accessory has expired its warranty period;Breakage or damage caused by inappropriate usage, maintenance or preservation, such as improper packing, improper usage, improper plugging in/out external equipment, falling off or squeezing by external force, contacting or exposing to the improper temperature, solvent, acid, base, flooding and damp environments, etc; Breakage or damage caused by non- authorized institution or staff in the process of installation, maintenance, alternation, addition and detachment; The original identifying information of product or accessory is modified, alternated, or removed;@ No valid warranty card;@ Breakage or damage caused by using illegally authorized, nonstandard or non-public released software;® Breakage or damage caused by force majeure or accident;@ Breakage or damage that could not be attributed to the product itself. Once met these situations above, you should seek solutions from the related responsible parties and Godox assumes no responsibility. The damage caused by parts, accessories and software that beyond the warranty period or scope is not included in our maintenance scope. The normal discoloration, abrasion and consumption are not the breakage within the maintenance scope.
Maintenance and Service Support Information
The warranty period and service types of products are implemented according to the following Product Maintenance Information:

Godox After-sale Service Call +86-755-29609320(8062)

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