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  1. #1
    Theoinpa is offline I'm new here!
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    Default Pre-processing vs post-processing

    With so many cameras offering processing in camera, how many use it? I just use the standard picture style, no DRO, no HDR, the lowest NR I can select and do it all in LightRoom. I have only been using cameras for hobby shooting for a couple months, so this might just be lack of knowledge, but does the pre-processing only effect jpegs taken with the camera? is RAW always unprocessed?
    Last edited by Saralonde; 11-11-2010 at 02:06 AM.

  2. #2
    maxharvard Guest

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    RAW is unprocessed.

    Nah-ha-hah-evAR pre-process.... totally kills any ability to go backwards.

    ~Eric

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    inkista's Avatar
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    RAW isn't an acronym or a file format. RAW just means "raw image data". So, yeah, it's unprocessed.
    I shoot with a Canon 5DmkII, 50D, and S90, and Pansonic GX-7. flickr stream and equipment list

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    RAW is basically:

    • Camera metadata
    • Sensor dump
    • JPEG preview based on the camera's current "develop" profile (what is used when shooting JPEG)


    Shoot RAW.
    Last edited by nickbedford; 11-10-2010 at 10:25 PM.

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    Shoot RAW if you want to increase the complexity and amount of time it takes to process an image by a factor of about 3 while only increasing the quality by about 5%.

    If you need the extra 5% then yeah go ahead and shoot RAW

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    inkista's Avatar
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    Quote Originally Posted by tuxcomputers View Post
    Shoot RAW if you want to increase the complexity and amount of time it takes to process an image by a factor of about 3 while only increasing the quality by about 5%.

    If you need the extra 5% then yeah go ahead and shoot RAW
    So not the way I see it. Wouldn't consider being able to fix this little whoopsie as a mere 5% quality increase.



    Shot underexposed as JPEG, increased exposure by 1.5 stops or so, and blew out the sky, but left those blue halos thanks to lossy JPEG compression having dumped all those extra transitional tones of blue in the sky. Shooting RAW would have eliminated the blue halo.

    Not to mention that this was early enough in my digital photography post-processing experience that I was still doing edits in the original JPEG file--i.e., destructive editing (there was no Lightroom back then). I can't go back to the original.

    It's not a quality issue. It's a missing data issue.
    Last edited by inkista; 11-10-2010 at 10:56 PM.
    I shoot with a Canon 5DmkII, 50D, and S90, and Pansonic GX-7. flickr stream and equipment list

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    OsmosisStudios's Avatar
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    Quote Originally Posted by tuxcomputers View Post
    Shoot RAW if you want to increase the complexity and amount of time it takes to process an image by a factor of about 3 while only increasing the quality by about 5%.

    If you need the extra 5% then yeah go ahead and shoot RAW
    Wow, this is sooo wrong. So very very wrong.
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    Quote Originally Posted by OsmosisStudios View Post
    Wow, this is sooo wrong. So very very wrong.
    Which part the 3x factor or the 5%?

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    Quote Originally Posted by tuxcomputers View Post
    Shoot RAW if you want to increase the complexity and amount of time it takes to process an image by a factor of about 3 while only increasing the quality by about 5%.

    If you need the extra 5% then yeah go ahead and shoot RAW
    Please stop talking now. Thanks.

    HEY GUYS LETS ALL SHOOT POLAROIDS.

  10. #10
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    Quote Originally Posted by inkista View Post
    Shot underexposed as JPEG, increased exposure by 1.5 stops or so, and blew out the sky, but left those blue halos thanks to lossy JPEG compression having dumped all those extra transitional tones of blue in the sky. Shooting RAW would have eliminated the blue halo.

    Not to mention that this was early enough in my digital photography post-processing experience that I was still doing edits in the original JPEG file--i.e., destructive editing (there was no Lightroom back then). I can't go back to the original.

    It's not a quality issue. It's a missing data issue.
    So the original was a JPEG and you adjusted it or there was 2 shots, one underexposed and the other with blue halos? If it was the former why didn't you use layers and masks to adjust one but not the other? As I demonstrate here.

    If you edit a JPEG and then save as a JPEG you deserve all you get. I take images as JPEG, edit, save as an XCF (the native GIMP format, it would be PSD for PS?) then as the last step use a plug-in called David Batch Processor to convert them all to a JPEG just before uploading.

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