Bought the Hero9 as soon as hit the shelves. Quite a bit bulkier and heavier than the predecessors. Haven’t found reference a compass, neither in the menu nor in the PDF manual.
Taken three sequences of some 15 - 18k stills; camera mounted on top of cycling helmet means the camera can look over parked vehicles allows to aim bit sideways to better catch details for OpenStreetMap, but even keeping the head really still results in a wobbly horizon.
Looking for a tall handlebar mount, anyone with a suggestion, please?
Positive : Resolution is good, and exposure far better than the Hero(2018) which I used before; also, much shorter exposure times result in more sharp pics.
Unfortunately : The built-in GPS is a bit a hit-or-miss : geotagged pics tend to be be really spot-on, but found that from three series 30%, 5% and 11% of pics were not geotagged at all.
One might expect limited accuracy in for example a forest, but the Garmin eTrex10 recorded a decent track in those areas. And most puzzlingly, some of those pics which werent geotagged were part of a sequence like riding across a meadow’, where there was no discernible source of interference between the pics that were, and the ones that weren’t geotagged.
Post-processing can be as easy as uploading from the SD-card with the Mapillary Desktop Uploader,
but the missed location info means I take a couple of extra steps:
1/ use ExifTool with the ExifToolGUI graphical user interface, in the filelist tab set Details to location info and sort on the GPS = yes/no column, move GPS=no to another folder (GoPro folders contain like 999 or 1000 pics, may be quicker to copy all pics to HDD using the GoPro Quik or Nikon Transfer or any other utility, rather than sort each folder in turn);
2/ use Garmin Basecamp to geotag pics w/o location info with track from eTrex10 or another GPS (haven’t found a GPS-log on the Hero)
3/ use XNviewMP > batch convert to ad text to pics w/o Hero’s location to indicate different GPS-log used; you’ll find the Hero’s clock drifts by a couple of seconds per day, hence there’ll be a difference in position between Hero-geotagged and Basecamp-geotagged pics.
Then upload with the Desktop Uploader.
The Linear lens + Horizon levelling of video works, but somehow gave me a headache when replaying 2.7K on a QHD monitor.
Pricewise : new Hero7 from the GoPro shop 280€ , new Hero9 ditto shop 380€ with free one year GoPro cloud membership : upload unlimited video (and I think pics too) , also gives discount on stuff, like -30% on batteries, -50% on handlebar mount and MAX lens mod which promises 155degree viewing angle
Heads up : the spare batteries can -to some destinations- only be shipped with a camera, mine last for some three hours in photo time-lapse mode, haven’t tried video long enough.
Hope this helps? Any questions : ask, I may know an answer …