From: Stan Halpin
Could it be that the camera (or the operator) got confused between
12:00 and 12:00 (i.e., 1200 and 2400.) That could throw you off
depending on time of day of the shots you are using as your baseline
markers.
I don't think so, because the EXIF date/time clearly says AM or PM and
the subject matter often gives clues to the time of day.
My basic anchor is a photo of a driver in his truck while we were lining
up a convoy. File name is IMGP0023.PEF.
I know within about 10 minutes or so the exact date and time I took that
photo. And I still have documents (orders & such) I can refer to and
confirm my memory.
The convoy had to depart at exactly 9:00 AM EDT. The EXIF says the photo
was taken at 3:04 AM. I remember taking the photo at about 8:00 AM.
So the 5 hours time difference couldn't have crossed over into another
next day.
So I would think that should give me a rather firm basis that the
date/time in the camera was set 452 Days and 5 hours behind the real
time. Add 452.21 days to the EXIF date/time should give the real time.
Subtract 452.21 days from the real date & time should line up with the
EXIF date/time.
Except ...
The first photo I have from when the K10D is new is IMGP0005.PEF. That's
the photo that has to have been taken on a *Saturday* morning because
that's the one day of the week that the mall where I had my photo-lab
held its weekly farmers market.
Adding 452.21 days to the EXIF date/time gives a FRIDAY morning.
But, I think I've figured out the other date/time jump.
My first images with the K10D all have an IMGPxxxx.PEF file name. But
the image with the known date & time that gives me the 454 days
discrepancy has a 1IMGPxxxx.PEF file name. Obviously I changed the file
name format in the camera.
I vaguely remember doing so because the *ist-D had the same file name
format. I was still using the *ist-D and I didn't want them over-writing
each others files. When I changed the file name format, I must have
changed the DAY at the same time.
And, of course, I screwed it up.
It almost lines up. Some time around the April 19, 2007 I must have
changed the DAY in the camera. But instead of changing it to 19, I
changed it to 20 and completely missed that the month and the year were
also wrong and didn't even think to check the time.
That's part of the mystery solved, and I think I'll just let the other
go now.
Thanks to all.
Your suggestions helped me to think it through and figure out what I was
not seeing.
-----
No virus found in this message.
Checked by AVG - www.avg.com
Version: 10.0.1204 / Virus Database: 1435/3478 - Release Date: 03/02/11
--
PDML Pentax-Discuss Mail List
[email protected]
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow
the directions.
