BobWinNV
Core User of DJI
Flight distance : 301250 ft
United States
Offline
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Turning on the subtitle option on the Mavic Mini will write data every second which is encoded into the video as subtitles.
The data can be extracted into an SRT file and will look like this:
60
00:00:59,000 --> 00:01:00,000
F/2.8, SS 202.82, ISO 110, EV -0.7, GPS (-115.1745, 36.3032, 16), D 9.47m, H 41.50m, H.S n/a, V.S n/a
61
00:01:00,000 --> 00:01:01,000
F/2.8, SS 60.30, ISO 200, EV -0.3, GPS (-115.1745, 36.3032, 15), D 9.43m, H 41.60m, H.S n/a, V.S n/a
These two examples were picked because they are consecutive (seconds 60 and 61) but different. I understand most of the data but have not figured out the SS field.
SS sure sounds like Shutter Speed but I have not been able to figure out the relationship of the numbers shown above ( SS 202.82 and SS 60.30) to shutter speeds expressed as fractions. At first I guessed that they might be expresed in miliseconds but they did not convert to any common shutter speed fraction.
Does anyone here know what the SS field is and if it is in fact Shutter Speed how is it converted to a more meaningful fraction representation?
Thanks.
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