Saving NEF to psd or tiff or png?

Discussion in 'Beyond the Basics' started by Atreus, Aug 24, 2008.

  1. Atreus

    Atreus TPF Noob!

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    I don't know if png should be thrown in there, but what are the pros/cons of psd/tiff? i understand theyre both lossless, but what would make one superior to the other?

    just curious, because i save as to psd on all of my stuff, then i edit, then go from there......
     
  2. Bifurcator

    Bifurcator TPF Noob!

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    PSD is more robust (stores more information chunks) than typical TIFF images but DNG is the most robust and the very best format for archiving IMO.


    http://en.wikipedia.org/wiki/RAW_image_format Also see the links at the bottom of the page.
     
  3. JerryPH

    JerryPH No longer a newbie, moving up!

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    DNG is best for archival and future changes, however the files are HUGE. I have a 14mb file that after PPing was well over 225mb, and it is nothing all that special either.

    If I saved all my files as DNG, I would soon need more than the 18TB of space that I currently have!


    I keep it a little more simple... I save the original RAW file and the final JPG. If it is a special file that I spent a lot of work on, I save the resultant PSD. I looked real fast at 5:14AM (just now) and in CS3, the DNG format was not in the list when doing a "save as".
     
  4. epp_b

    epp_b No longer a newbie, moving up!

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    IrfanView can open NEFs and save them as TIFF/PNG/JPEG/etc. It can also do a whole bunch of them in one go with its batch processor.
     
  5. myles

    myles TPF Noob!

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    What I have read and what moves me to keep everything as a NEF file is file size. Since NX2 came out I have been doing more permanent post processing of RAW images only in NX2. The brush tool and the u-point system gets me to as many places in my PP techniques as I want to go these days. NX has come a long way but it also needs a few more things to make it truly pro, like LAB and CMYK color spaces to start with. So I only use PS for final edits with plug-ins, or actions, which can be easily duplicated after making a JPG image from the RAW.

    So I have moved to saving NEF's instead of the huge TIFF or DNG files.


    David Myles Stam
    www.davidmylesphotography.com
     
  6. Atreus

    Atreus TPF Noob!

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    Thanks for the feedback guys.
     
  7. Bifurcator

    Bifurcator TPF Noob!

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    Don't dismiss JPEG-2000 either... It can keep all of you bit depth in tact, camera and shot information, and still be small. ;)
     
  8. Tolyk

    Tolyk TPF Noob!

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    What does that have to do with the question that was asked anyway? They asked about the advantages, not which programs can do it, and can batch process.


    I don't have CS3 installed on this computer and it's been months since I've used it. But I never saved in PSD. I just do what Jerry said, without the occassional PSD file. PSD is indeed lossless, but as stated, the files are huge. I just don't have the capacity to be backing up 3 different versions of my files either.
     
  9. usayit

    usayit No longer a newbie, moving up!

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    Does it grow from 14mb to 225mb due to saving the incremental changes you made in photoshop?

    I'm still archiving everything in TIFF... I guess I feel it has been around longer than DNG.
     
  10. Bifurcator

    Bifurcator TPF Noob!

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    The difference is that TIFF is a processed file format. Some destructive changes have been made to the data. With DNG you're optionally keeping the unmodified sensor data.

    I haven't ever seen one get 200mb or more personally. In fact I haven't ever seen one larger that about 80mb. And i use the format allot. That doesn't mean it can't happen - it just means I've never seen it.
     
  11. epp_b

    epp_b No longer a newbie, moving up!

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    Uh, kind of assumed based on the title. My bad...carry on :D
     
  12. JerryPH

    JerryPH No longer a newbie, moving up!

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    It likely does have some to do with it. I was looking at a file with about 25 layers, that had the most to do with it, I would say.
     

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