RAW file size

Discussion in 'Photography Beginners' Forum' started by shingfan, Feb 22, 2007.

  1. shingfan

    shingfan TPF Noob!

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    i have a D80....most of my RAW files are 7-9MB...mostly around 7-8MB.........but i heard ppl saying that RAW from D200 is 16MB.......i thought D80 and D200 use the same system.....shouldnt their RAW files be about the same size?....why the huge difference...anyone knows?

    or my camera is defeative?:er:
     
  2. EOS_JD

    EOS_JD TPF Noob!

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    Perhaps they mean an 8bit tif file which when converted from RAW sounds about right. Your RAW size sounds correct.

    8bit Tifs from my 20D are close to 11 or 12Mb..
     
  3. shingfan

    shingfan TPF Noob!

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    o...maybe that is why.....becuase i usually convert to 16bit TIFF...about 50MB each.....so i never know what a 8bit TIFF is like.....is 16bit a little overkill?
     
  4. AluminumStudios

    AluminumStudios TPF Noob!

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    Nikon raw .nef files from different cameras ARE different sizes. My D50 produces .nef files on the order of 6 mb, my Coolpix 5400 on the other hand produces raws around 8 mb despite being fewer megapixels.

    There is no standardization among raw, not even within most manufacturer's lines. How much lossless compression the camera applies, the mosaic pattern of the particular camera's CCD, etc., all come into play.
     
  5. shingfan

    shingfan TPF Noob!

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    now i think you are thinking in the wrong direction.....for sure RAW files from all nikon do not share the same RAW file size.....i'm talking about D80 and D200 specifically because they share the same chipset, resolution and sensor which would lead me to think that they should share similar RAW file size

    i think D80 and D200 use the same technology in terms of image processing & sensor as far as i see from their spec (ppl call D80 the economic version of D200)
     
  6. shingfan

    shingfan TPF Noob!

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    any D200 or D80 users like to comment on this?
     
  7. fmw

    fmw No longer a newbie, moving up!

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    Not really but the D80 appears to have slightly tighter NEF file sizes, probably due to newer firmware. The chips are the same, the NEF files are same enough but not exactly the same. The D200 would certainly not be 16mb in a NEF file but it could easily be that in a TIFF. The D80 doesn't save to TIFF format so you can't compare that.
     
  8. hovis

    hovis TPF Noob!

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    Have to disagree there old bean I'm afraid. My D200 RAW (.NEF) files are all around the 15- 16 M size, as they come off the camera.
     
  9. fmw

    fmw No longer a newbie, moving up!

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    No kidding? Where would the data come from, I wonder? There is only 10mb worth of data in the first place given a byte per pixel. Strange.
     
  10. EOS_JD

    EOS_JD TPF Noob!

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  11. shingfan

    shingfan TPF Noob!

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    hmm....i guess it depends on the frame....a few of my RAWs do go up to 12MB...but average 9MB....but D80's RAW is compressed.....whereas D200 is uncompressed....that's why the difference....but the difference is unnoticable if using nikon capture to process.....i guesss i got the answer

    fmw....i read somewhere that RAW uses 12bit....
     
  12. Alex_B

    Alex_B No longer a newbie, moving up!

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    True, at least for the cameras I know.... but then again I do not know all cameras ;)
     

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