Question for Doug? Managing file numbering with two cameras.

dyota

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I know there is some experienced, intelligent people that can help me with my confusion. With a 20D the numbering system I understood. I thought I would just format the CF cards I share with my 30D and keep them in separate subdirectories in my computer.

Well, somehow the 30D reads the folder number before you format the card, so after the format it jumps up to the highest folder number that was on the card before you formatted it. Do I need to format the cards with the same camera I shot with, and will it be clean? That would be a hassle, but sure beats having to reset and rename the numbers every time I forget (twice in two weeks already). Or is there a better system with two bodies sharing cards?
 
Format the card using a PC/Card Reader combo after copying the images off it - this will destroy any remnants of file numbering on the card. To be safe, you should then re-format the card in camera before shooting with it.

Steve H
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Thanks Steve, I'll try that, although I am not 100% comfortable formatting the cards with my computer. I tried it and the actual format time is much longer with the computer than the camera. All this formatting is good, I suppose, for cleaning the cards.
Dyota
 
Thanks Steve, I'll try that, although I am not 100% comfortable
formatting the cards with my computer. I tried it and the actual
format time is much longer with the computer than the camera. All
this formatting is good, I suppose, for cleaning the cards.
Dyota
It certainly won't hurt the card either way, but a "quick format" is just as effective and probably faster if that's a concern.

Steve H
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how do i get my number back after I fautly using the card for my nikon? it should approximately be 10000 actuations, but it becomes 3000 right now....

thanks
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cat cat cat

 
While formating in the PC is 100% effective in removing all trace of folder/image numbering and you can succesfully share cards between cameras, in practice it's too easy to get it wrong.

The best is that you buy separte cards for both cameras and stick with that system - except in emergencies. Different brands would be a good idea to keep them straight.

My practice is to set the numbering to 0 at the start of the year and to "fool" the other camera into a higher number - say set the backup camera to 8000 or 9000 - using the techniques described in this forum. That way, all images shot with both will have unique numbers unless I exceed 9000 with the main body or the backup exceeds 1000.

It's worked well for me for 2 years now.

Cheers,
Paul

P.S. Before leaving on a trip where I will not have access to a PC (i.e. leave the laptop at home), I format all cards in the PC first. That way, they can be used in either body in an emergency without contaminating the numbering.

P.S. 2 You can definitely choose another split. If you shoot equally with two bodies, split them 1-5000 and 5001-9999, etc.
 
with your PC. No need to format. That's best done in the camera anyway.

Rich
 
If you can afford $29.95, I recommend you Downloader Pro ( http://www.breezesys.com/Downloader/index.htm ). It 's a much better long-term solution. Its main function is to download files from the card to the computer, but you can:
  • Assign unique new filename to each file, according to, for example, date/time, camera (useful for two bodies setups), image number, exif, etc.
  • Copy to different folders according to the same criteria
And many things more. I only shoot with one camera so I use this naming convention: YYYYMMDD_9999 where "9999" is the original number given by the camera.

If you have two bodies, you can use, for example: YYYYMMDD_CAMERA1_9999 and YYYYMMMDD_CAMERA2_9999.

Hope it helps,

--
Martín Arpón
http://www.pbase.com/marpon
 
or three or more.....and if / when you upgrade...are you going to start at file 1 folder 1 all over again????...and then years later....consolidating files ...you will overwrite whole folders if the files in them have identical names.....so why worry about letting that happen at all?

why not....rename w/ unique names everytime you download the files to your computer????

I have at least 6 digital cameras in the household...and have unique names for all the images....by who and when taken....(but not by camera).....

first lets start with an assumption that...most of the time...you will not be taking more than 1000 shots per day.....

if you want to keep within the OLD DOS 8+3 nomenclature, to maximize compatability w/ different OSs......

what I use is:

one letter for the year ( I know after 26 years it will repeat)
one letter for the month A=Jan/B=Feb etc..
two letters for the day of the month 1st=01, 31st=31

underscore, or Person's first name letter ....here at my house......R=Richard/N=Nancy/J=Julia
three numbers for sequence of photos taken that day....

iL28_986

would be the 986th photo I took on Dec 28, 2006...and since I synchonize all the cameras date/times I can just download them all ....rename them all w/ temp names to avoid any chane of overwriting when I put them all in one folder....then....combine them all in a single folder....sort by date taken....and then rename the whole mess using the nomenclature above. This sorts the files by the order in which they were taken...and renames them all with unique names that I will not repeat ever again.

If Julia took the photos on her camera.....

iL28J986 would make her file number unique from mine...still identifies the date....and the person .....and would not overwrite files taken by me on the same day....

iL28N986 for Nancy....and if I need more on the same day....that I took....

iL28R986 ....or all the rest of the letters in the alphabet would take me up to about 24000 photos in that day for me alone.... I really don't see the wife or daughter ever exceeding 1000 pics in a day.....

If you don't worry about the 8+3 nomenclature....heck use the date itself followed by however big a number you want.... I sometimes write the file number on the backs of prints...and want to keep from getting writers cramp....so want to minimize the file name length for more reasons than just the 8+3 nomenclature recognized by DOS.

As a side note....when and if I run out of year letters?... I will go to the next 12 letters of the alphabet for the months....and start back over with A for the year again...and that way I should be able to extend the file system out another 26 years......after which I figure I probably won't still be shooting......

I rename all files FIRST thing after copying them all over on the laptop. Then copy/resave/write/convert from raw etc., so all copies will thereafter have the same file name for the same photos....and NONE will be repeated.

Next about searching for particular photos....If you keep old calendars....note what you did that day....then a search of all the photos coded for that day...years later will find you the pics you want. Second....name the folders, and possibly subfolders, with key words that will help you remember what the photos are ....rather than adding that info to each file name....and making it HUGE.....

Sure...you can add all this info to the exif of each file...and newer software is progresively making this a more viable option...but it still can't hurt to have even more intuitive seach tools at your hands when trying to find photos from among literally 100,000s of images....and with digital we are all getting those huge numbers....(heck I had over 500,000 images before digital came along...you want to talk filing problems!)

--
Richard Katris aka Chanan
 
I have breezebrowser downloader pro and it is awesome. Thanks for sharing you knowledge!
 

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