Godox MF-R76 Macro Ring Flash

Foreword

Thank you for purchasing the Godox MF-R76 Macro Ring Flash! The MF-R76 is a compact ring flash designed for close-up photography, featuring a ring flash body and a convenient controller. The A/B flash tubes can fire independently, allowing precise brightness control and offering various lighting options for creative photography. It is ideal for macro photography scenes such as insects, plants, jewelry, and dental photography.

Key Features

• No vignetting or shadows during close-up shooting.
• Accurate power adjustment from 1/1 to 1/128 in 1/3 EV increments.
• Guide No. GN14 for stable manual flash output and instant fill light.
• Fast recycling time of only 1.5s at full power.
• Lithium battery powered, supporting up to 660 full-power flashes.
• Easy installation, suitable for camera lenses with 49mm-77mm diameters.
• Two LED Focus Assist Beams with 10 brightness levels for easier focusing in low light.
• Simple user interface for comfortable operation.

Parts Name

Diagram illustrating the components of the flash unit and controller:

• 01. Flash head
• 02. LED Focus Assist Beam button (1-10 stops)
• 03. A/B group selection dial
• 04. C.Fn: Custom Functions button
• 05. RATIO button
• 06. Flash trigger button
• 07. SET button
• 08. Select dial
• 09. ON/OFF 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

Packaging List

• Macro ring flash ×1
• Lithium battery ×1
• USB charger ×1
• Type-C-USB charging cable ×1
• Adapter ring kit (AR-R Kit) ×1 (includes 49mm, 52mm, 55mm, 58mm, 62mm, 67mm, 72mm, 77mm rings)
• Storage bag ×1
• Instruction Manual ×1

Battery

• Uses a 7.2V/2600mAh lithium battery with a long lifespan, supporting up to 660 full-power flashes.
• Features built-in protection against overcharge, over-discharge, overcurrent, and short circuits.
• Charging time is approximately 3.5 hours with the optional VC1 charger (5V 2A).
• Compatible with Godox V1 lithium battery (VB26) and AD100Pro lithium battery (WB100).

Precautions and Warnings

• Keep the product dry.
• Keep out of reach of children.
• The product is not waterproof; avoid use in rain or damp conditions.
• Do not expose to temperatures above 50°C.
• Do not disassemble the product. Repairs should be performed by authorized personnel.
• Do not use if the product is damaged (e.g., from extrusion, falling, or impact).
• Avoid firing the flash directly into eyes, especially babies', at close distances, as it may cause visual impairment.
• Do not use in the presence of flammable gases or other sensitive materials that could react to strong light.
• Do not short-circuit the battery.
• Do not immerse the battery in water.
• Do not charge the battery for more than 24 hours continuously.
• Store batteries in dry, cool, ventilated places.
• Do not put batteries into fire.
• Dispose of dead batteries according to local regulations.
• If the battery has been unused for over 3 months, recharge it fully.
• For long-term storage, charge the battery to approximately 60%.
• Replace the battery after over 500 charge/discharge cycles or 3 years of use.

Installation and Disassembly

Controller Installation

• Loosen the lock ring [lock] by rotating it counter-clockwise.
• Slide the controller's hotshoe completely into the camera's hotshoe socket.
• Secure the lock ring [lock] by rotating it clockwise.

Diagrams showing the steps for loosening the lock ring, installing the controller, and securing the lock ring.

Ring Flash Installation

• Install the appropriate adapter ring onto the camera lens by rotating it clockwise.
• Align the ring flash with the adapter ring connecting port on the lens and attach it securely.
• Note: The mounted ring flash can be rotated 360°.

Diagrams showing the installation of the adapter ring on the lens and the attachment of the ring flash.

Ring Flash Disassembly

• Gently pull out the release buckle on the back of the ring flash.
• Rotate the ring flash to the right to detach it.

Diagrams showing the steps for disassembling the ring flash.

Operating Instructions

Power Switch

Toggle the ON/OFF Power switch button to ON to power on, and to OFF to power off.

Focus Assist Beam

Short press the LED Focus Assist Beam button to turn it on or off.

Modeling Light Adjustment

With the Focus Assist Beam on, short press the SET button to enter the adjustment interface. Use the select dial to adjust brightness from level 1 to 10.

A/B Flash Setting Switch

Short press the A/B group selection dial to cycle through different flash setting interfaces: AB common adjustment, A/B individual adjustment, A-only adjustment, and B-only adjustment. Use the select dial to set flash output from 1/1 full power to 1/128 in 1/3 increment steps. The flash can fire in one of four modes: 1. A group fires with the same power as B group. 2. A group fires with different power than B group. 3. Only A group fires. 4. Only B group fires.

Diagrams illustrating AB flash power common adjustment, A/B flash power individual adjustment, A flash power adjustment, and B flash power adjustment interfaces.

Custom Functions (C.Fn)

1. Backlight Dormancy Setting

This feature conserves battery by turning off the backlight after a period of inactivity. Short press the C.Fn button to enter the custom function setting. The display will show "BL" (Backlight) and the dormancy time. The default is 10s. Use the select dial to adjust or turn off the dormancy time, then press C.Fn to return.

2. Auto Sleep Setting

This feature conserves battery by automatically putting the unit into sleep mode after inactivity. Short press the C.Fn button to enter the custom function setting. The display will show "SL" (Sleep) and the sleeping time. The default is 30min. Use the select dial to adjust or turn off the sleeping time, then press C.Fn to return.

Flash Power Setting

Short press the RATIO button to cycle through flash power adjustment modes: AB common adjustment, A/B individual adjustment, A-only adjustment, and B-only adjustment. Use the select dial to set flash output from 1/1 full power to 1/128 in 1/3 increment steps. The flash can fire in one of four modes: 1. A group fires with the same power as B group, 2. A group fires with different power than B group, 3. Only A group fires, 4. Only B group fires.

Diagrams illustrating different flash power setting modes.

Compatible Camera Models

This flash unit is compatible with Canon, Nikon, Sony, Fuji, Olympus, Panasonic, and Pentax cameras.

Over-Temperature Protection

To prevent overheating and damage to the flash head, avoid firing more than 35 continuous flashes at 1/1 power in quick succession. After 35 flashes, allow a rest time of at least 10 minutes. If the unit exceeds 35 flashes and continues firing at short intervals, the overtemperature protection may activate, indicated by ⚠️ on the LCD. If this occurs, allow approximately 10 minutes for the unit to cool down and return to normal operation.

Number of Flashes to Activate Over-Temperature Protection

Other Protections

LCD Panel Prompts

Technical Data

Note: All data is based on Godox testing standards. Design and specifications are subject to change without notice.

Maintenance

• Shut down the device immediately if abnormal operation is detected.
• Avoid impacts and dedust the product regularly.
• It is normal for the flash tube to be warm during use; avoid unnecessary continuous flashes.
• Maintenance must be performed by authorized service departments using original accessories.
• The product is supported with a one-year warranty (excluding consumables like the flash tube).
• Unauthorized service voids the warranty.
• If the product fails or gets wet, do not use it until professionally repaired.
• Changes to specifications or designs may not be reflected in this manual.

Regulatory Information

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. 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.

Declaration of Conformity

GODOX Photo Equipment Co., Ltd. hereby declares that this equipment is in compliance with the essential requirements and other relevant provisions of EU Directive 2014/30/EU. They are allowed to be used in all EU member states. For more information of DoC, please visit: www.godox.com/DOC/Godox_MF-R76_DOC.pdf

Warranty Information

This warranty card is an important certificate for maintenance service. Please fill it out with the seller and keep it safe.

Product Information

How to Get Maintenance Service

Contact the product distributor or authorized service institutions. You can also contact Godox after-sale service. Provide a valid warranty card for service. If a valid card cannot be provided, service may be offered after confirmation, but this is not an obligation.

Inapplicable Cases

• Expired warranty period.
• Damage due to improper usage, maintenance, or preservation (e.g., improper packing, external equipment issues, drops, extrusion, extreme temperatures, solvents, water damage).
• Damage caused by unauthorized repair, modification, or detachment.
• Original identifying information modified or removed.
• No valid warranty card.
• Damage caused by illegal, non-standard, or unauthorized software.
• Damage due to force majeure or accident.
• Damage not attributable to the product itself.
• Parts, accessories, or software beyond the warranty period or scope.
• Normal discoloration, abrasion, or consumption.

Applicable Products

This document applies to products listed in the Product Maintenance Information. It does not cover promotional items, giveaways, or additional accessories.

Warranty Period

The warranty period is calculated from the date of purchase, as registered on the warranty card.