Hi Alewey,
Thanks so much for your reply, I will definitely uncheck the camera positions from the reference pane, I thought that using "geotagged" pictures helps with the processing but with that high errors, it probably won't.
I would like to ask you 2 more questions:
I am wondering if the projection errors on markers are the accuracy of the dGPS data?
And, there any standard calibration procedure for GoPro pictures?
Thanks again,
Napo