Thanks a lot for the hint on the delay induced by having stabilisation active on the GoPro! We find the stabilisation absolutely crucial for getting usable footage. However, the GoPro 8 seems to work fine even with stabilisation turned on.
As for the media mod, I’ve modded it — so that it is now much smaller. All one needs in the ROV is the HDMI out and USB power in, so one can really get rid of the rest of the plastic.
As for the photogrammetry we haven’t yet had the chance to test this via the ROV. We suspect it might be better using the timelapse mode on the GoPro, especially since this might give faster shutter speeds. However, we’re open to suggestions - and your results look very good, Vectrino!