A&P So Nikon's NEF is a Lossy RAW format?!

Discussion in 'Lifestyle' started by 1200mk, Feb 2, 2007.

  1. 1200mk

    1200mk Still same OG

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    Wtf?!
     
  2. hsubaru

    hsubaru New Member

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    On a D80, it is compressed raw. I think it's still lossless compression, though.
     
  3. mattsb2000

    mattsb2000 OT Supporter

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    Compressed like a zip file.

    I doubt it's lossy.
     
  4. .chris

    .chris You drown before the water lets you in. OT Supporter

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    not lossy
     
  5. Joetabasco

    Joetabasco The Wing King

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    not lossy
     
  6. 1200mk

    1200mk Still same OG

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    damn... does it make a difference?
     
  7. White Stormy

    White Stormy Take that, subspace!

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    not with nikon iso performance :mamoru:
     
  8. vwpilot

    vwpilot New Member

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    No, its compressed, but NOT lossy.
     
  9. 1200mk

    1200mk Still same OG

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    how can it not be lossy if it is compressed?
     
  10. 1200mk

    1200mk Still same OG

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    the high iso on my d80 is pretty good.
     
  11. hsubaru

    hsubaru New Member

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    It uses a form of Huffman encoding. It's like lossless compression with audio files. Intuitively, doesn't make sense, but isn't technology great? :)
     
  12. hsubaru

    hsubaru New Member

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    Same with on my D200. Too many noise nazis around hurr. :ugh2:
     
  13. vwpilot

    vwpilot New Member

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    It uses some kind of algorithm that will allow it to compress and save the data in a smaller file, but when opened it will return it all to its normal size.

    For instance, and this isnt supposed to be a digital example, if you have a sample of numbers and it contains 6 10s and 3 4s and 2 1s, it would look like this:

    10, 10, 10, 10, 10, 10, 4, 4, 4, 1, 1

    But if I could compress it into:

    6,10,3,4,2,1

    Its now a lot smaller, but I still know there are 6 10s, 3 4s, and 2 1s.

    its comprssed, but when expanded can be exactly as it started and lossless.
     
  14. 19Godfather86

    19Godfather86 New Member

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    Ditto.
     

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