Camera time out of sync so my wedding pics aren't in order??

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I normally sync the time on both 5Ds before a wedding but for some reason they're out, so when the pics are in Aperture they're not in the correct order. They're shown in chronological order, but the two cameras seem to be a 3-4 mins out of sync, so for instance there's a sequence of the B&G leaving the church then followed by them still being in the church! :bang:

I can't organise them by filename because that will jumble them even more. Is there a clever way round this? Can I batch change an adjustment to the shooting time? i.e. +/- 3 minutes?

It's a pain to drag images and change their order in Aperture so wondered if anyone knew of a clever way to resolve this?

Thanks
 
There is a program called exifier (something ike that) which is supposed to batch change the times.
 
If you have access to lightroom you can do it in the library view. I used it over the weekend to bulk change some images where I had forgotten to change the clock after they went back until I had already taken a dozen or so.

I suppose you could use the trial version if needed. Its in the Metadata section theres a button like 3 lines next to capture time.

Edit: actually ignore me, that only does whole hours, you can't adjust by a fixed number of minutes.
 
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There's a free command line utility that will do this, it runs on virtually everything too, windows is a simple executable.

http://www.sno.phy.queensu.ca/~phil/exiftool/

Download in and then to run it easily just append the file name with the criteria you want to change in the image files and then drag them on to the executable.

Relevant example text below.

Have you ever forgotten to set the date/time on your digital camera before taking a bunch of pictures? ExifTool has a time shift feature that makes it easy to apply a batch fix to the timestamps of the images (ie. change the "Date Picture Taken" reported by Windows Explorer). Say for example that your camera clock was reset to 2000:01:01 00:00:00 when you put in a new battery at 2005:11:03 10:48:00. Then all of the pictures you took subsequently have timestamps that are wrong by 5 years, 10 months, 2 days, 10 hours and 48 minutes. To fix this, put all of the images in the same directory ("DIR") and run exiftool:

exiftool "-DateTimeOriginal+=5:10:2 10:48:0" DIR

The example above changes only the DateTimeOriginal tag, but any writable date or time tag can be shifted, and multiple tags may be written with a single command line. Commonly, in JPEG images, the DateTimeOriginal, CreateDate and ModifyDate values must all be changed. For convenience, a shortcut tag called AllDates has been defined to represent these three tags. So, for example, if you forgot to set your camera clock back 1 hour at the end of daylight savings time in the fall, you can fix the images with:

exiftool -AllDates-=1 DIR
Click to expand...
 
Wedding-Photos said:
There's a free command line utility that will do this, it runs on virtually everything too, windows is a simple executable.

http://www.sno.phy.queensu.ca/~phil/exiftool/

Download in and then to run it easily just append the file name with the criteria you want to change in the image files and then drag them on to the executable.

Relevant example text below.
Click to expand...

Does this batch ajust all the times (say your camera clocks -15 mins out) and add the +15 to the existing times, or will it just reset them all to say 2 O clock?
Thanks Wayne
 
swanseamale47 said:
Does this batch ajust all the times (say your camera clocks -15 mins out) and add the +15 to the existing times, or will it just reset them all to say 2 O clock?
Thanks Wayne
Click to expand...
Batch adjust and do relative time. Look at the example in the quoted text:

So, for example, if you forgot to set your camera clock back 1 hour at the end of daylight savings time in the fall, you can fix the images with:

exiftool -AllDates-=1 DIR
Click to expand...
 
Exiftool is a great tool. I roughly set the clock on my camera, and found it was 1 minute 3 seconds out in relation to UTC (by taking a picture of my GPS output).
So,
exiftool -Alldates-=00:00:01:03 *.CR2
and then
exiftool -geotag long.gpx *.CR2
and it goes away and tags everything.
One minor issue, there appears to be a slight memory leak if you are doing more than 1000 images at a time. So you may want to do:
exiftool -geotag long.gpx *_1*.CR2
exiftool -geotag long.gpx *_2*.CR2
etc.
 
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