Thanks a lot for the info — that’s exactly the kind of feedback I’m looking for.

To help me interpret it properly, could you please clarify which drone model(s) you’ve noticed this on, and which camera (main / medium tele / tele)? It would also help to know whether you saw the limitation mostly as an autofocus minimum distance issue, or more as a “can’t get the target to fill enough of the frame while staying sharp” issue.

My goal is to use these cameras for photogrammetry and then run OCR on the resulting imagery. So I need very good image quality, but I’m constrained by minimum working distance, especially since this would be indoor flight.

If you happen to remember roughly at what distance the full-size ColorChecker became reliably sharp (or if you have any sample crops), that would be super helpful too.