Doesn't do what I want to do whether it's esoteric or not.
I expect there's no way to do what I want that doesn't involve a lot of
resetting the date and time on the computer itself before making the
corrections.
On 3/10/2017 10:40 AM, Stanley Halpin wrote:
On Mar 7, 2017, at 12:17 PM, Igor PDML-StR <pdml...@komkon.org> wrote:
Hi All,
The question of adjusting the time in the EXIF of the photos had come up on
this list a few times in the past.
This frequently is an issue when you forget to adjust the time zone.
LR provides the possibility to adjust the date and time to a specified value
(which is inconvenient for multiple photos taken over several days of a trip)
or to shift by set number of hours (which is limited to +/- 24 hours.
During the recent trip, in addition to my regular bag with Pentax DSLR, I took a
small P&S. I had to charge the battery, and the date was reset.
So, I made a mistake while setting the date: The date was 1 year (2018), and 3
hours ahead.
So, I would have died if I had to adjust the time zone in LR 365 times... :-)
I have not followed this thread in detail, you have gone off into Windows
esoterica beyond my ken. But meanwhile, back to Lightroom, your basic premise
is wrong. It really is very simple within Lightroom.
YMMV.
On my iMac, Lightroom 6.8 and all earlier versions back as far as I remember,
it is simple to do a batch change in the Capture Time.
For example, lets say that a whole batch of photos was captured with a
seriously wonky clock that was 2 years, 3 hours, and 15 seconds off. And you
have a seriously OCD nerdish requirement to get them all the THE RIGHT time.
(Been there, done that.)
Select the one or 100 or 1000 files you want to adjust.
Under Metadata, choose Edit Capture Time.
Click on the first button for Adjust to a specified date and time
Lower on the screen you see Original Time: mm/dd/yyyy, HH:MM:SS
and Adjusted Time: mm/dd/yyyy,
HH:MM:SS
OK, so for example lets say the 1st shot in your selection shows as [09/15/2005
14:10:00] and the last of your 100 selected shots shows as [09/17/2005 08:27:05]
Adjust the Corrected Time numbers to the intended adjusted OCD approved correct
time as it applies to the first image in your selection.
Et voila, all 100 images have their metadata adjusted by the equivalent amount
relative to their start point. This is the key point: the changes you make to
the first selection are applied relative to each image’s start point, NOT
absolutely.
Try it.
So, for example
[09/15/2005 14:10:00] + (2 yrs, 3 hours and 15 seconds) = [09/15/2007 17:10:15]
for the first image in the selection and
[09/17/2005 08:27:05] + (2 yrs, 3 hours and 15 seconds) = [09/17/2007 11:27:20]
for the last one in the selection, and everything in between is given the
appropriate adjustment.
BTW, LR warns that “This operation cannot be undone.” Which is wrong of course.
First of all, you can fiddle with this field as much as you like, including
setting the date/time back to the original. But you can also just redo your
selection and from the Metadata menu choose Revert Capture Time to Original.
I typically travel with two DSLRs, plus often something like the WG-2 and my
wife has her camera. Sometimes I synch times across the several cameras at the
start of a trip. But the timing may be off a few minutes and/or xx seconds even
at the start. And then we cross into a new time zone and the GPS thingie auto
updates the time on some but not all of the cameras. And then we cross into
another time zone but the GPS doesn’t know that because it is biased to
Northern Hemisphere. Etc. So when I get home and am reviewing the total
collection, I will usually have chunks of images out of synch. Example, we are
watching a pod of whales bubblenet fishing about 50 yards away. She is
shooting, I am shooting, switching back and forth among two or three cameras.
Back home I really want to review (and later share) those images in as close to
the exact time sequence as I can get. Which usually requires some Capture Time
adjustments and a mental note that next time I really must do a better job
synching the time on the cameras to begin with.
stan
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