Banding with Parrot Sequoia camera

Hi All

We are processing sequoia data and have noticed some very bad banding. The flight was flown at 100m, 12m/s with 75% overlap and sidelap - pretty standard flight parameters. The sunlight sensor is mounted on top of a Matrice 100.

Any ideas why we are seeing such bad banding or banding at all?

Wow that looks horrible. Have you tried taking some pictures of a uniform surface, like a white wall, to see if it also happens there?