It is not possible to disable the browse functionality for an image question at this time, however, I have added your request to our backlog to be considered for a future enhancement.
Thanks, Brandom & Robert
The problem is not taking the photo ( Robert) but which is added to the survey. In the supervision work you may need to know if the photo was taken at the time of the survey , or the photos were added from a PC without going to the field to perform the verification.
I was thinking about being able to locate the date of the photo (metadata) and that it coincides with the date of the survey.