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Author Topic: Saving Tiff files  (Read 1406 times)

MrIconoclast

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Saving Tiff files
« on: May 16, 2013, 10:10:24 AM »

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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Re: Saving Tiff files
« Reply #1 on: May 16, 2013, 10:33:24 AM »

Saving TIFF from what program?
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Jack Hogan

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Re: Saving Tiff files
« Reply #2 on: May 16, 2013, 01:58:04 PM »

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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Re: Saving Tiff files
« Reply #3 on: May 16, 2013, 02:43:31 PM »

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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Re: Saving Tiff files
« Reply #4 on: May 16, 2013, 08:22:35 PM »

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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Re: Saving Tiff files
« Reply #5 on: May 16, 2013, 09:47:03 PM »

A Google search on LZW produced the answer, it is non-destructive.

Alan
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Schewe

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Re: Saving Tiff files
« Reply #6 on: May 16, 2013, 11:21:48 PM »

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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Re: Saving Tiff files
« Reply #7 on: May 17, 2013, 05:18:07 PM »

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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