We know the Z1 does not have an inbuilt gps mechanism, it relies on the gps data from the phone and inserts that into the photo exif data. We have an ios app that sends the gps coordinates from the phone when the photo was clicked and are storing it in the database. When we compare the values from the database and the exif from the same image, there seems to be some difference. We thought as it is taking that data from the phone, the values would be exactly same, not even a 0.000000000001 difference, exactly the same. But the there seem to be differences such that just the first 3 or 4 digits after the decimal are the same, sometimes even values after the third digit are different. Is there any processing done with the gps data before it is inserted into the image exif? What is causing these differences? Is there any way that these values can be the same (without using a custom plugin for it)
Thank you @craig and @JoscTr for your responses. @craig , we are not doing anything explicitly to feed the gps data into the image, it just comes along with the picture. It is not about accuracy, what i meant is that if it is getting the data from the phone then the data should be exactly identical, what we get from the ios app and what is extracted from the image, both should be the same if the time is the same.