how to see the altitude of a picture in its file

[lalvar40]

I want to know exactly at what altitude a picture was taken. I get this in photoshop when I open the file info of the subject picture:

Is the height 25.98 meters ( or 80 feet) , why is it negative? I live in Fl close to sea level.
This is the picture..it makes sense to be 80 feet.

 

[N017RW]

Here's a previous thread:
(I won't vouch for it answering your question satisfactorily as I have not read it.)

Image info on GPS Altitude Incorrect (showing minus)

Google also has many hits to your question.

 

[joet]

I see the same thing in pictures from my P3 4K with the latest firmware (data from ExifTool):

GPS Altitude : 36.5 m Below Sea Level
GPS Latitude Ref : North
GPS Longitude Ref : West
GPS Altitude Ref : Below Sea Level


If you look at these EXIF values, it makes more sense; I was at about 40 feet when I shot the picture, so the relative altitude figure seems to make sense:

Absolute Altitude : -36.58
Relative Altitude : +13.10


Here's a thread that explains it.. Mostly:

DJI Forum|Photo,exif Altitude incorrect? Possible Firmware bug?