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Author Topic: Saving Tiff files  (Read 842 times)
MrIconoclast
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« on: May 16, 2013, 09:10:24 AM »
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I have large number of photos I am saving in the Tiff format. They are two to three times the size of the RAW file.

Is there a way to reduce the size of the TIFF files but not lose any image quality?

thanks.
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PeterAit
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« Reply #1 on: May 16, 2013, 09:33:24 AM »
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Saving TIFF from what program?
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Peter
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Jack Hogan
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« Reply #2 on: May 16, 2013, 12:58:04 PM »
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If you are a Nikon man, you may want to try Capture NX2.  It holds everything (including the original raw data, subsequent global and local adjustments, plus a final Jpeg) in a neat tight package called a NEF.  Entropy.

Jack
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aduke
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« Reply #3 on: May 16, 2013, 01:43:31 PM »
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I have large number of photos I am saving in the Tiff format. They are two to three times the size of the RAW file.

Is there a way to reduce the size of the TIFF files but not lose any image quality?

thanks.

Yes there is, save the TIFF's with a zip-compression, which is lossless.  Your raw file is n-MegaPixels of, at most, 16 bits. The tiff file is n-MegaPixels of, at least, 24 bits, and probably should be saved as 48-bit pixels, so the tiff will be larger than the raw without compression.

Alan
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MrIconoclast
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« Reply #4 on: May 16, 2013, 07:22:35 PM »
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I am using PS6.  I save with no compression at the moment, but I am wondering if the LZW compression will help.  But, I do not want to lose image quality. 
Maybe I should buy a larger hard drive. :-)
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aduke
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« Reply #5 on: May 16, 2013, 08:47:03 PM »
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A Google search on LZW produced the answer, it is non-destructive.

Alan
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Schewe
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« Reply #6 on: May 16, 2013, 10:21:48 PM »
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If you are using 16-bit, you'll want to use zip compression as LZW can actually end up producing larger files compressed than uncompressed...
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craigwashburn
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« Reply #7 on: May 17, 2013, 04:18:07 PM »
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It used to be that LZW was better supported than zip in other programs, so I tend to default to LZW except for 16 bit.

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