Flash Units
Mainly the following flash units and flash accessories are compatible with this camera (as of September 2021).
| Type of Accessory | Product Name | EOS R3 |
|---|---|---|
| Flash units | Macro Ring Lite MR-14EX II | Compatible |
| Speedlite 430EX III-RT/430EX III | Compatible | |
| Macro Twin Lite MT-26EX-RT | Compatible | |
| Speedlite EL-100 | Compatible | |
| Speedlite EL-1 | Compatible*1 | |
| Flash accessories | Speedlite Transmitter ST-E3-RT (Ver. 2) | Compatible*1 |
| Speedlite Transmitter ST-E10 | Compatible |
1: For camera attachment, use Multi-Function Shoe Adapter AD-E1.