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Author Topic: Archiving - Its still not clear  (Read 3339 times)

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« on: January 13, 2010, 08:36 »
0
Like many of you here, for each image I have a jpeg file for uploading, a layered PSD file and the original Raw file archived on multiple locations.  What is not clear to me is what file format should I use for the layered file, either a layered Tiff (16) or the proprietary format of PSD?  One mistake I have been making is not using "Backwards Compatibilty" on my PSD files, thus slowing down Bridge previews among other disadvantages.   

From Cambridge In Colour:

http://www.cambridgeincolour.com/tutorials/archival-photo-backup.htm

Unfortunately, many of the formats used for storing edited photos are also subject to future compatibility issues. Fortunately, this is one area where changing technology can mean you'd like to rework certain images using the latest software and techniques. Just make sure that you also have an archived version of the unaltered original photo.
Overall, the only fail-proof solution is to keep your data up-to-date. Every few years it's a good idea to convert file types that are in danger of becoming obsolete.

I know this has been discussed before but the above quote tells me that it might be unimportant whether a Tiff or PSD is the choice.

Any thoughts from those of you who have thought this through?


« Reply #1 on: January 13, 2010, 11:00 »
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Why use the proprietary PSD format? TIF is open format, lossless too, and has about the same size. I have to admit I use zipped TIF (which is more compact). For photos, why should you save layers?  The flat TIF is enough, unless you do illustrations.

I save: the original CR2, the untweaked JPG from cam, and the final TIF with all the edits. From there I can generate the JPGs for upload. I save on external disks, at least 2 copies. On average, I obtain 30 Gig per month like that, that's one extra 1TB disk per year. Considering the price of disks, that's peanuts. 

« Reply #2 on: January 13, 2010, 11:37 »
0
Why use the proprietary PSD format? TIF is open format, lossless too, and has about the same size. I have to admit I use zipped TIF (which is more compact). For photos, why should you save layers?  The flat TIF is enough, unless you do illustrations.

I save: the original CR2, the untweaked JPG from cam, and the final TIF with all the edits. From there I can generate the JPGs for upload. I save on external disks, at least 2 copies. On average, I obtain 30 Gig per month like that, that's one extra 1TB disk per year. Considering the price of disks, that's peanuts.  

The reason you might want to save the edited copy in layers is in case you want to print the image . . . tweaking while softproofing for a printer's profiles.  You don't really want to print without knowing and correcting for a specific printer's profile.  Not to mention paper profiles.
« Last Edit: January 13, 2010, 11:44 by etienjones »


 

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