EXIF timestamp does not match filenaem timestamp by 10 minutes

[Andrew Cool]

Hi Guylain,

I've noticed that the EXIF timestamps from my Canon 5D MKIII are about 10 minutes out from the timestamp

in the filename, e.g. :-

FIlename : 23:54:13

EXIF : 23:43:25

This is for 60 second exposures, using BEOS v3.1.11

The offset is consistent across a night of exposures.

I was also running a Canon 6D in BEOS, where the filename timestamp is within 1 second of the EXIF timestamp,

no doubt due to the inbuilt GPS.

I have placed 3 CR2 files from the 5D MKIII spaced over the night in

http://www.cool.id.au/astronomy/BEOS_exif_error/

Regards,

Andrew Cool

www.skippysky.com.au

[admin]

Filename time stamps is generated by BYE ans uses the computer date.

EXIF is generated be the camera, not the computer.

 

[Andrew Cool]

Ah, of course.

 

I've never understood why a camera worth twice as much as the 6D lacks GPS and WiFI.

 

Thanks, and excuse my idiocy!

 

[astroman133]

I believe that one of the timestamps is the time at the start of the exposure and the other is at the end of the exposure.