Re: Photo time are wrong
On Tue, 13 Jul 2010 23:32:11 +, T o n g wrote: On Tue, 13 Jul 2010 16:55:50 +, Camaleón wrote: (...) Just out of curiosity, the shifted time is backward (-3 hours) or forward (+3 hours)? $ jhead img_2937.jpg | grep -i date File date: 2010:07:12 08:13:26 Date/Time: 2010:07:12 12:13:27 Mmm, just guessing here, but if you are reading the EXIF information (static metadata) and is wrong it should be displayed the same (wrong) when you attach the SD card into another OS. Have you tested in another computer/OS? If so, what result are you getting? The Date/Time on the Exif info is pretty much accurate. It reflect when I took the picture. This means the problem has nothing to do with the camera, or changing of the battery. The File date is actually what I see from the file system: $ ls -l img_2937.jpg -rw-rw-r-- 1 tong tong 410467 2010-07-12 08:13 img_2937.jpg which is what I meant, wrong. The shifted time is backward -4 hours. Any ideas? Make a copy of one of the images with a wrong File date EXIF tag and try to correct it with jhead, then check again with ls -l. Also, review the camera's timezone offset setting. Again, does this happens with any media files stored in other devices or just with DSC images? Greetings, -- Camaleón -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/pan.2010.07.14.07.23...@gmail.com
Photo time are wrong
Hi, I use to get correct file time for my photos from my digital camera. But recently they are all wrong now, shifting by about 3 hours. The camera is the same. Something get changed on Debian side? How can I fix it? (photos are from mounted SD card via SD card reader). Thanks -- Tong (remove underscore(s) to reply) http://xpt.sourceforge.net/techdocs/ http://xpt.sourceforge.net/tools/ -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/i1i3v9$n1...@dough.gmane.org
Re: Photo time are wrong
On Tue, 13 Jul 2010 16:24:09 +, T o n g wrote: I use to get correct file time for my photos from my digital camera. But recently they are all wrong now, shifting by about 3 hours. You mean that the files of the FAT32 based filesystem SD card are being time-mangled? Have you tested...: 1/ Another SD card? 2/ Mounting the SD card in another computer? 3/ Checking the battery of the DSC? Just out of curiosity, the shifted time is backward (-3 hours) or forward (+3 hours)? The camera is the same. Something get changed on Debian side? How can I fix it? (photos are from mounted SD card via SD card reader). I cannot guess how the OS could be making noise here :-? Greetings, -- Camaleón -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/pan.2010.07.13.16.55...@gmail.com
Re: Photo time are wrong
On 07/13/2010 09:24 AM, T o n g wrote: Hi, I use to get correct file time for my photos from my digital camera. But recently they are all wrong now, shifting by about 3 hours. The camera is the same. Something get changed on Debian side? How can I fix it? (photos are from mounted SD card via SD card reader). Thanks The first thing that comes to mind is, did you recently change batteries in the camera? Some cameras lose their memory and need to be reset, though this is usually from a 'default' that is off by more than a few hours. Another possibility is the batteries are getting low on power? In any case, you can use 'exiftool -CreateDate file.ext' to get the date and time the camera was set to when the photo was taken. If this doesn't match the values you expect to see, either, then the problem is in the camera. If it is what you expect and it doesn't match the date and time *on the SD card*, there's something odd going on with the camera. If the two dates match but the value after copying/moving to a Linux fs (presuming you attempted to preserve, or the tool you use preserves, the file modification time), then something is amiss on the Linux side. You may need to verify your locale settings. If you find the date displayed by exiftool is OK, you can use exiftool to rename the files, based on the date and time of creation or even have it set the modification times (a la 'touch'). -- Bob McGowan -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4c3ca5b0.8040...@symantec.com
Re: Photo time are wrong
On Tue, Jul 13, 2010 at 04:24:09PM +, T o n g wrote: Hi, I use to get correct file time for my photos from my digital camera. But recently they are all wrong now, shifting by about 3 hours. The camera is the same. Something get changed on Debian side? How can I fix it? (photos are from mounted SD card via SD card reader). You could be getting bit by Bug #577597 - system with UTC=yes in /etc/default/rcS mounts FAT USB disk with wrong file time. The bug report contains the following work-around, as root run these commands: hwclock --systohc --utc hwclock --hctosys --utc My rockboxed ipod shows files with timestamps off by the time difference between localtime and UTC, as if the tz=UTC option was selected in mount, and when I apply the work-around in the bug report things are straightened out. HTH dt -- Dave Thayer | Whenever you read a good book, it's like the Denver, Colorado USA | author is right there, in the room talking to d...@thayer-boyle.com | you, which is why I don't like to read | good books. - Jack Handey Deep Thoughts -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20100714043209.ga2...@thayer-boyle.com
