Drone Mavic 3 M Enterprise. Firmware update at this day. Apparently you can only see these black vignette in RGB images. In  Multiespectral images this not happend.

Hi there, we are sorry for any inconvenience. We will forward this issue to the corresponding team for further confirmation.

Hi there, we got an update from the corresponding team that this problem is caused by not enabling the "Distortion Correction" function. DJI Mavic 3M can be used in the field of aerial photography and mapping. For some mapping scenes, the original film with vignetting is required for post-processing. It is recommended that you turn on the "Distortion Correction" function on the camera settings page, and the dark corners in the image transmission/photo will disappear. We will optimize the interaction design in the subsequent firmware to bring you a better operating experience, thank you for your understanding and support.

DJI Mindy Posted at 7-3 01:45
Hi there, we got an update from the corresponding team that this problem is caused by not enabling the "Distortion Correction" function. DJI Mavic 3M can be used in the field of aerial photography and mapping. For some mapping scenes, the original film with vignetting is required for post-processing. It is recommended that you turn on the "Distortion Correction" function on the camera settings page, and the dark corners in the image transmission/photo will disappear. We will optimize the interaction design in the subsequent firmware to bring you a better operating experience, thank you for your understanding and support.

I understand, thank you very much

Terra Drone Posted at 7-3 10:38
I understand, thank you very much

Thank you for your understanding as well.