Re: Help! Trying to rationalize my back catalog
From: Larry Colen On Mar 2, 2011, at 8:39 AM, steve harley wrote: On 2011-03-02 01:23 , John Sessoms wrote: Because I also have duplicate file names. I have different files on different drives that have the same names, but they're not the same image. a simple solution to avoiding name conflicts is not to rename anything, but to store files in folders /MM/DD (\MM\DD in DOS-speak); LightRoom or Aperture can do this for you automatically; that would probably also ease any manual inspection of images for particular dates that you want to do Oh no, another thread on how each person handles some trivial task! I like naming each group of photos in the pattern: yymmdd_what_im_shooting Now, we can have 20 other people tell you what they consider to be the proper way to do this, and explain what is wrong with everyone else's way of doing it. Yeah, fine. But do you have an answer to the question I actually asked? Why does the discrepancy between the EXIF date in the camera and the calendar date change? Why is the camera not wrong by the same amount from beginning to end? - 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 PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Help! Trying to rationalize my back catalog
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 IMGP.PEF file name. But the image with the known date time that gives me the 454 days discrepancy has a 1IMGP.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 PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Help! Trying to rationalize my back catalog
On Mar 3, 2011, at 8:09 AM, John Sessoms wrote: From: Larry Colen On Mar 2, 2011, at 8:39 AM, steve harley wrote: On 2011-03-02 01:23 , John Sessoms wrote: Because I also have duplicate file names. I have different files on different drives that have the same names, but they're not the same image. a simple solution to avoiding name conflicts is not to rename anything, but to store files in folders /MM/DD (\MM\DD in DOS-speak); LightRoom or Aperture can do this for you automatically; that would probably also ease any manual inspection of images for particular dates that you want to do Oh no, another thread on how each person handles some trivial task! I like naming each group of photos in the pattern: yymmdd_what_im_shooting Now, we can have 20 other people tell you what they consider to be the proper way to do this, and explain what is wrong with everyone else's way of doing it. Yeah, fine. But do you have an answer to the question I actually asked? What does answering the question that someone asks has to do with PDML? Why does the discrepancy between the EXIF date in the camera and the calendar date change? Why is the camera not wrong by the same amount from beginning to end? Maybe you don't always turn the camera off before putting it in your bag and something hits the menu button in such a way as to change the date. When the other settings change, you just assume that you forgot to set them back. -- Larry Colen l...@red4est.com sent from i4est -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Help! Trying to rationalize my back catalog
From: Larry Colen On Mar 3, 2011, at 8:09 AM, John Sessoms wrote: Yeah, fine. But do you have an answer to the question I actually asked? What does answering the question that someone asks has to do with PDML? Oh yeah ... point taken. - 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 PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Help! Trying to rationalize my back catalog
From: Doug Franklin On 2011-03-01 19:31, John Sessoms wrote: I'm trying to get my all of my digital photos organized now that I have sufficient storage space to keep them all on one drive. That's the necessary prelude to making a complete REAL backup (i.e. one here, one there - NOT here IYKWIM). OK, it might not be what you want to hear, but it sounds like the best course of action is to (a) get over the chronological order thing for the time being, and name them some other way and (b) after you've got a flippin' backup, then worry about chronology. If nothing else, some of us here on the list can probably help you put together a script that would rename them based on the date stored in the EXIF data, if such a thing doesn't already exist. I'm not really worried as much about the chronological order as I am worried about mis-naming files and over-writing something so it gets lost forever. Some of the files have already been renamed when they were put on the USB drives. But there are gaps that I think might be from mis-renaming files after I copied them. Because I also have duplicate file names. I have different files on different drives that have the same names, but they're not the same image. I'm sorting through 6 years of photos from 4 cameras. If the file number and the date don't both go in sequence I know there's an area where I've got a problem. Getting the chronology straightened out can help me find the mis-renamed files help me reconstruct what they should be named. Part of the problem is I got the files spread over 10 different USB drives before I had the money to buy the NAS. I need to resolve the conflicts so I don't lose files when I consolidate them on the NAS, and that's why I'm looking at chronology. The inconsistent chronology thing only affects about 6 months of 1 camera in 2007. I got the clock set correctly after that. It's not a problem with the dates being wrong, it's a problem with the dates not all being wrong by the same amount all the time. Getting them both in sequence has already helped me identify where I screwed up file names in 2004 - 2005 so I was able to straighten the problem out without losing files. 2004 - 2006 are fixed and I have already made REAL backups for 2004 - 2005 (one here, one there). To efficiently use the drive space I already have available for converting to backups, I want to get 2007 straightened out so it can go on the same pair of drives with 2006. I guess I could just go ahead and back up 2007 now as it stands and then over-write the backups with new ones later once I sort out the date thingy. I was just hoping someone would have an idea why the date error appears to be jumping around like it is. It's 453 days, then a week later it's 452 days and three weeks after that it's 454 days. - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1204 / Virus Database: 1435/3476 - Release Date: 03/01/11 -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Help! Trying to rationalize my back catalog
-Original Message- From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of John Sessoms [...] I'm having a problem. When I first got the K10D back in March 2007 I set the date wrong, or perhaps failed to set the date at all. I didn't get the correct date set until 02Oct2007, about 6 months after I got the camera. [...] Anyone got any ideas? There's bound to be an explanation in the way computers calculate dates for why it's doing this, but I can't see what it is. what did you use to calculate the differences between the dates? If you did it manually, did you take leap years into account? If you use a spreadsheet or something it will give you the most accurate result. The way computers calculate dates is not likely to be the reason for the drift you're seeing. It could be down to the clock on the camera drifting, for example with a weak battery. If you're really, really bothered about it you could download all the data into a spreadsheet, plug in your known dates as reference points, plot a trend based on the known differences, then apply the trend to the exif dates to get an approximate answer. Personally I would just live with it, but I tend not to use the dates. B -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Help! Trying to rationalize my back catalog
From: Godfrey DiGiorgi If you need to adjust the capture dates, Lightroom has tools to do this and an option to reset the date in the original raw files' EXIF data. - first make a backup of everything - import it all into Lightroom - one group of files at a time, put them into collections and get them into the right order - be sure that in LR's Catalog Settings, Metadata tab, the Write date or time changes into proprietary files option is checked. - use the Metadata-Edit Capture Time... command to change the file date and time values, one group at time - once all the files sort properly by Capture time, use the Library-Rename Photos ... command to name them in sequence properly. - back them up again. It's always a complex process to sort out a mess. :-) Thanks, I copied these instructions into the spread sheet where I'm trying to sort out the dates files. Once I get Lightroom have figured out what date/time changes I actually need to write to the EXIF I'll have the instructions. I'm sort of in the middle here. 1/3 - Part of the files are already renamed properly and already backed up. 2/3 - I'm trying to sort out now to see if I can find a few missing files that I have perhaps NOT properly renamed. 3/3 - The third part is partially renamed, but still to be backed up properly. I need to make sure I've found all the missing files from the middle third that it's possible for me to find before I'll feel safe wiping additional drives to use for backup. - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1204 / Virus Database: 1435/3476 - Release Date: 03/01/11 -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Help! Trying to rationalize my back catalog
just wondering, surely it must be possible to write a script that greps output from exiftool or the like and then extracts the shutter count and renames files accordingly. I bet many people here would appreciate it much. are there any coders on the list who know how to do that? 2011/3/2 John Sessoms jsessoms...@nc.rr.com: From: Godfrey DiGiorgi If you need to adjust the capture dates, Lightroom has tools to do this and an option to reset the date in the original raw files' EXIF data. - first make a backup of everything - import it all into Lightroom - one group of files at a time, put them into collections and get them into the right order - be sure that in LR's Catalog Settings, Metadata tab, the Write date or time changes into proprietary files option is checked. - use the Metadata-Edit Capture Time... command to change the file date and time values, one group at time - once all the files sort properly by Capture time, use the Library-Rename Photos ... command to name them in sequence properly. - back them up again. It's always a complex process to sort out a mess. :-) Thanks, I copied these instructions into the spread sheet where I'm trying to sort out the dates files. Once I get Lightroom have figured out what date/time changes I actually need to write to the EXIF I'll have the instructions. I'm sort of in the middle here. 1/3 - Part of the files are already renamed properly and already backed up. 2/3 - I'm trying to sort out now to see if I can find a few missing files that I have perhaps NOT properly renamed. 3/3 - The third part is partially renamed, but still to be backed up properly. I need to make sure I've found all the missing files from the middle third that it's possible for me to find before I'll feel safe wiping additional drives to use for backup. - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1204 / Virus Database: 1435/3476 - Release Date: 03/01/11 -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Help! Trying to rationalize my back catalog
On 2011-03-02 3:23, John Sessoms wrote: I was just hoping someone would have an idea why the date error appears to be jumping around like it is. It's 453 days, then a week later it's 452 days and three weeks after that it's 454 days. Maybe due to the change in when Daylight Savings Time starts and ends? -- Thanks, DougF (KG4LMZ) -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Help! Trying to rationalize my back catalog
On 2011-03-02 01:23 , John Sessoms wrote: Because I also have duplicate file names. I have different files on different drives that have the same names, but they're not the same image. a simple solution to avoiding name conflicts is not to rename anything, but to store files in folders /MM/DD (\MM\DD in DOS-speak); LightRoom or Aperture can do this for you automatically; that would probably also ease any manual inspection of images for particular dates that you want to do -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Help! Trying to rationalize my back catalog
From: Bob W -Original Message- From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of John Sessoms [...] I'm having a problem. When I first got the K10D back in March 2007 I set the date wrong, or perhaps failed to set the date at all. I didn't get the correct date set until 02Oct2007, about 6 months after I got the camera. [...] Anyone got any ideas? There's bound to be an explanation in the way computers calculate dates for why it's doing this, but I can't see what it is. what did you use to calculate the differences between the dates? If you did it manually, did you take leap years into account? If you use a spreadsheet or something it will give you the most accurate result. The way computers calculate dates is not likely to be the reason for the drift you're seeing. It could be down to the clock on the camera drifting, for example with a weak battery. If you're really, really bothered about it you could download all the data into a spreadsheet, plug in your known dates as reference points, plot a trend based on the known differences, then apply the trend to the exif dates to get an approximate answer. Personally I would just live with it, but I tend not to use the dates. Yeah, that's what I'm doing, using a spread sheet. As far as I know, neither 2006 nor 2007 were leap years. Here's how it works ... My BASE date is the date I left for Annual Training in March of 2007. It was a 21 day AT period. I have a copy of the orders that tell me when where to report, how long the duty will last, when we will return to Home Station, etc. That first day, we left in a convoy from the armory to our training site at Camp Shelby. While we were lining the vehicles up, I took a photo of one of the drivers at approximately 8:00 am on that Saturday morning: KNOWN Date Time 04/07/2007 08:00:00 (AM EST) EXIF Date Time 01/10/2006 3:04:19 AM (Timezone unknown) Round the first KNOWN Date Time to 08:04:19 because that many minutes and seconds won't affect the outcome. That makes the difference 452 Days + 5 hours. For an UN-Known Date Time, I should be able to add that number to the EXIF Date Time and derive the true date and time for the photo, and I have a photo I took approximately a week before: EXIF Date Time 01/02/2006 2:39:53 AM ADD IN +452 05:00:00 DERIVED Date Time = *Friday* 03/30/2007 07:39:53 PROBLEM - the subject matter of the photo is a Farmer's Market that was held every SATURDAY at the mall where my photo-lab was located. The photo cannot have been taken on Friday morning, it had to have been taken on Saturday 03/31/2007, which changes the difference to 453 days. The time at 07:39:53 works. So it has to be 453 Days + 5 Hours for this photo. Further on, I have a second KNOWN Date approximate time to compare with EXIF date time. The next to last day of AT was a convoy departing Camp Shelby for Atlanta where we spent the night at Dobbins AFB. As Safety Officer, I was tail end Charlie. During the convoy move, the vehicle in front of my vehicle was involved in a minor traffic accident (mirror slap with an 18 wheeler sitting on the shoulder of I-20). I had to create an Army Ground Accident Report for the incident. I recorded the TIME of the accident on the report as 9:20 AM CST. I took photos as part of my investigation while we waited for the civilian authorities. KNOWN Date (time) 04/26/2007 09:30 (AM CST - 10:30 AM EST) EXIF Date Time 1/27/2006 5:30:40 AM The difference is 454 days. Assuming the hours remained the same at +5, the photo was taken at approximately 10:30 AM EST, so make it 454 Days + 5 Hours. I have two additional KNOWN Date Time pools from June 2007 that I can draw from and they are both consistent with 454 Days + 5 Hours. And for most of the remaining period 454 Days + 5 Hours added to the EXIF Date Time gives me a day of the week that I can reconcile with my known work schedule. It's not an insurmountable problem, I've already managed to get the photos into file sequence. I just want to figure out is why the date difference jumped from 453 Days to 452 Days and then jumped back to 454 Days? - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1204 / Virus Database: 1435/3476 - Release Date: 03/01/11 -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Help! Trying to rationalize my back catalog
On Mar 2, 2011, at 8:39 AM, steve harley wrote: On 2011-03-02 01:23 , John Sessoms wrote: Because I also have duplicate file names. I have different files on different drives that have the same names, but they're not the same image. a simple solution to avoiding name conflicts is not to rename anything, but to store files in folders /MM/DD (\MM\DD in DOS-speak); LightRoom or Aperture can do this for you automatically; that would probably also ease any manual inspection of images for particular dates that you want to do Oh no, another thread on how each person handles some trivial task! I like naming each group of photos in the pattern: yymmdd_what_im_shooting for example 110226_portrait_party But, that file will eventually get filed under 2011a/1102/ I then sort pictures out in subdirectories based on subject or quality. This way, if I move my processing over to something besides lightroom, it'll be easier to find the photos. Also, when I process files to jpeg using tree exporter, I can make a disk where the customer can find what they're looking for without using lightroom. While I'm at it, I have lightroom rename files on import to date_filename to avoid name conflicts. Now, we can have 20 other people tell you what they consider to be the proper way to do this, and explain what is wrong with everyone else's way of doing it. -- Larry Colen l...@red4est.com sent from i4est -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Help! Trying to rationalize my back catalog
From: Doug Franklin On 2011-03-02 3:23, John Sessoms wrote: I was just hoping someone would have an idea why the date error appears to be jumping around like it is. It's 453 days, then a week later it's 452 days and three weeks after that it's 454 days. Maybe due to the change in when Daylight Savings Time starts and ends? I don't know. I figure Fall Back 2006 ought to cancel out Spring Forward 2006, so that only leaves a possible Spring Forward 2007. 2006 S.F. April 02, F.B. October 29; 2007 S.F. March 11. We were already on Daylight Savings Time when I got the camera and all of the KNOWN dates are after the switch over. All I can see it doing is making for one hour less difference *if* we had still been on the old schedule. I don't see how it would make a DAY's difference. Both the calendar and the camera should be incrementing at the same rate. And that's what appears to NOT be happening here. The calendar incremented by 7 days and the camera incremented by 8 days (253 - 252). Assuming I start with the 1/02/06 EXIF date that MUST represent a Saturday due to the subject matter, the following Saturday should be 1/09/2006, but it's 1/10/2006. Then when the calendar had incremented 28 days, the camera only incremented 27 Days (253 - 254). The camera EXIF date should be 1/30/2006, if you count 28 days (the week + 21 day AT) from the that Saturday, but instead shows 1/29/2006. And if you calculate from the 1/10/2006 date that correlates with the first day of AT, 21 days later should be 1/31/2006, but instead it's 1/29/2006 - the clock only incremented 19 days from 1/10/2006. The camera gained a day, then it lost two days. Makes me crazy! Or am I overlooking something obvious here? - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1204 / Virus Database: 1435/3476 - Release Date: 03/01/11 -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Help! Trying to rationalize my back catalog
From: steve harley On 2011-03-02 01:23 , John Sessoms wrote: Because I also have duplicate file names. I have different files on different drives that have the same names, but they're not the same image. a simple solution to avoiding name conflicts is not to rename anything, but to store files in folders /MM/DD (\MM\DD in DOS-speak); LightRoom or Aperture can do this for you automatically; that would probably also ease any manual inspection of images for particular dates that you want to do I'm actually storing them in folders MMDD-N_unique-name, so that different jobs on the same day can be separated. When the -N is needed, it insures that the first job of any day, -1, is the first folder, the second job is the second folder, ... it's not needed if I only did one job on that day. The unique-name for the folder is my reminder for WTF was I doing? on each job. Inside the folders the files are in the sequence I took them. Because I have 4 cameras and occasionally will use more than one on a job, I'm renaming the files as istD-n.???, K10D-n.??? ... K20D, so I can tell at a glance which of the four cameras I used to take the image. The 5 digit sequence numbers are because the *ist-D has wrapped past twice, and the K10D has gone around once already. The K20D hasn't wrapped yet, and I have no idea whatsoever what the real numbers are for my last ditch, If a 747 lands on the freeway, I've always got at least one camera with me backup A60 are. Bridge will do the folders manually if not automatically, and at the same time I'm using it to manually inspect problematic images. That's how I first found out that some files on different drives with the same names were not the same images. It was when I started organizing my folders so the computer would sort them in date order that I discovered I hadn't set the dates properly in the camera. I'm slowly getting it straightened out; even overcoming the date discrepancies. Right now, I'm just bugged about what caused the discrepancy to be inconsistent. - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1204 / Virus Database: 1435/3476 - Release Date: 03/01/11 -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Help! Trying to rationalize my back catalog
[...] And if you calculate from the 1/10/2006 date that correlates with the first day of AT, 21 days later should be 1/31/2006, but instead it's 1/29/2006 - the clock only incremented 19 days from 1/10/2006. The camera gained a day, then it lost two days. Makes me crazy! Or am I overlooking something obvious here? wormholes. B -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Help! Trying to rationalize my back catalog
On 2011-03-02 13:38 , Larry Colen wrote: Oh no, another thread on how each person handles some trivial task! I like naming each group of photos in the pattern: yymmdd_what_im_shooting that can work if your photos are usually grouped into coherent sessions, but mine usually are overlapping subjects or i don't want to figure it out right away; i don't put any metadata into the filename, i just auto-file into folders by date; this makes reconsiling backups and such easy, but otherwise i rarely look at the files or their names then i tag by any number of things, which i can do now or later; i may make smart albums for certain subjects; i also sometimes use Aperture's grouping feature; all of this is independent of the filesystem Now, we can have 20 other people tell you what they consider to be the proper way to do this, and explain what is wrong with everyone else's way of doing it. nothing's proper nor wrong -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Help! Trying to rationalize my back catalog
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. stan On Mar 2, 2011, at 4:16 PM, John Sessoms wrote: From: Doug Franklin On 2011-03-02 3:23, John Sessoms wrote: I was just hoping someone would have an idea why the date error appears to be jumping around like it is. It's 453 days, then a week later it's 452 days and three weeks after that it's 454 days. Maybe due to the change in when Daylight Savings Time starts and ends? I don't know. I figure Fall Back 2006 ought to cancel out Spring Forward 2006, so that only leaves a possible Spring Forward 2007. 2006 S.F. April 02, F.B. October 29; 2007 S.F. March 11. We were already on Daylight Savings Time when I got the camera and all of the KNOWN dates are after the switch over. All I can see it doing is making for one hour less difference *if* we had still been on the old schedule. I don't see how it would make a DAY's difference. Both the calendar and the camera should be incrementing at the same rate. And that's what appears to NOT be happening here. The calendar incremented by 7 days and the camera incremented by 8 days (253 - 252). Assuming I start with the 1/02/06 EXIF date that MUST represent a Saturday due to the subject matter, the following Saturday should be 1/09/2006, but it's 1/10/2006. Then when the calendar had incremented 28 days, the camera only incremented 27 Days (253 - 254). The camera EXIF date should be 1/30/2006, if you count 28 days (the week + 21 day AT) from the that Saturday, but instead shows 1/29/2006. And if you calculate from the 1/10/2006 date that correlates with the first day of AT, 21 days later should be 1/31/2006, but instead it's 1/29/2006 - the clock only incremented 19 days from 1/10/2006. The camera gained a day, then it lost two days. Makes me crazy! Or am I overlooking something obvious here? - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1204 / Virus Database: 1435/3476 - Release Date: 03/01/11 -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Help! Trying to rationalize my back catalog
On Mar 2, 2011, at 3:28 PM, steve harley wrote: On 2011-03-02 13:38 , Larry Colen wrote: Oh no, another thread on how each person handles some trivial task! I like naming each group of photos in the pattern: yymmdd_what_im_shooting that can work if your photos are usually grouped into coherent sessions, but mine usually are overlapping subjects or i don't want to figure it out right away; i don't put any metadata into the filename, i just auto-file into folders by date; this makes reconsiling backups and such easy, but otherwise i rarely look at the files or their names Yeah, If I have multiple groups of photos on the same card, I'll then split them out. My immediate backup on another machine doesn't get the benefit of that extra sorting, but I just treat that machine as an emergency copy of the raw files anyways. -- Larry Colen l...@red4est.com sent from i4est -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Help! Trying to rationalize my back catalog
On 2011-03-01 19:31, John Sessoms wrote: I'm trying to get my all of my digital photos organized now that I have sufficient storage space to keep them all on one drive. That's the necessary prelude to making a complete REAL backup (i.e. one here, one there - NOT here IYKWIM). OK, it might not be what you want to hear, but it sounds like the best course of action is to (a) get over the chronological order thing for the time being, and name them some other way and (b) after you've got a flippin' backup, then worry about chronology. If nothing else, some of us here on the list can probably help you put together a script that would rename them based on the date stored in the EXIF data, if such a thing doesn't already exist. -- Thanks, DougF (KG4LMZ) -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Help! Trying to rationalize my back catalog
If you need to adjust the capture dates, Lightroom has tools to do this and an option to reset the date in the original raw files' EXIF data. - first make a backup of everything - import it all into Lightroom - one group of files at a time, put them into collections and get them into the right order - be sure that in LR's Catalog Settings, Metadata tab, the Write date or time changes into proprietary files option is checked. - use the Metadata-Edit Capture Time... command to change the file date and time values, one group at time - once all the files sort properly by Capture time, use the Library-Rename Photos ... command to name them in sequence properly. - back them up again. It's always a complex process to sort out a mess. :-) On Tue, Mar 1, 2011 at 4:31 PM, John Sessoms jsessoms...@nc.rr.com wrote: I'm trying to get my all of my digital photos organized now that I have sufficient storage space to keep them all on one drive. That's the necessary prelude to making a complete REAL backup (i.e. one here, one there - NOT here IYKWIM). I'm having a problem. When I first got the K10D back in March 2007 I set the date wrong, or perhaps failed to set the date at all. I didn't get the correct date set until 02Oct2007, about 6 months after I got the camera. If I sequence the images from 2007 by date, the file numbers aren't in order. If I sequence them by file number the dates don't make sense. I have certain events that occurred on known dates where I can compare the camera date in the EXIF to the date I know the event occurred. Going from the first KNOWN date AND time - the first day of my 2007 Annual Training - the discrepancy is 452 days + 5 hours (+/- 10 minutes). Adding 452 days + 5 hours to the EXIF date/time gives me the correct date and time for when I *know* I took the photo (+/- 10 min). EXIF date = 10Jan2006 03:04 am; KNOWN date = 7Apr2007 approx 08:00 am But other KNOWN dates give a discrepancy of 454 days (the + 5 hours seems consistent throughout). For the most part, calculating dates by adding 454 days + 5 hours works, but for some days it just does NOT. The calculated date is the wrong day of the week. The locations are places I could not have reached on a day that I worked and the calculated date does not fall on one of my days off. Plus I remember that I was at that location on one of my days off. My first calculated date correction won't work unless I use 453 days - 452 days gives a Friday and 454 days gives a Sunday for a subject I know I must have been on a Saturday (a Farmers Market that was held only on Saturdays). The 5 hours doesn't matter; adding it in still gives the wrong day of the week (Friday) - subtracting it gives a different wrong day of the week (Thursday) ... still wrong. Anyone got any ideas? There's bound to be an explanation in the way computers calculate dates for why it's doing this, but I can't see what it is. -- Godfrey godfreydigiorgi.posterous.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
