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Thread: JPEG to DNG to PP-raw

  1. #1
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    Default JPEG to DNG to PP-raw

    Converting some of my jpeg and raw files to DNG for storage.
    Notice now that I am able to raw process my 'converted jpeg' files in PP.
    So the question now is whether these'converted jpeg' files are similar to raw in quality and capability as far as PP is concerned.

    If so then probably will start taking pictures in jpeg and convert them to DNG and finally PP in raw.

    Advise me please

    Thanks

  2. #2
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    Default Re: JPEG to DNG to PP-raw

    converting jpg to DNG does not recover the quality lost when the camera process the raw data from sensor to jpg

  3. #3
    Senior Member limwhow's Avatar
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    Default Re: JPEG to DNG to PP-raw

    Hello, stevepow.
    As the amount of data in a Jpeg file is not as high as a RAW file, thus it probably would be of no use to convert a Jpeg to DNG.
    In fact, Scott Kelby said in his Photoshop book that he himself would not convert his Jpegs to DNG.
    But I can understand where you come from, because if you convert to DNG, it is only convenient for you are able to do some non-destructive adjustment in Camera RAW, exactly like what you do with a normal DNG file.

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    Default Re: JPEG to DNG to PP-raw

    Thanks guys for the prompt replies.

    Yes able to edit these 'converted jpeg' files with PP's raw tools which will not be available if they're in jpeg format.

    Just need to know how effective or to what extent am I able to achieve with this PP's workflow.

    Of course it will not be as good as the original PP's raw to jpeg.

    Converting my raw storage to DNG files to squeeze out more space in my HDD
    Last edited by stevepow; 21st January 2010 at 07:17 AM. Reason: amend wording

  5. #5
    Senior Member limwhow's Avatar
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    Default Re: JPEG to DNG to PP-raw

    Quote Originally Posted by stevepow View Post
    Thanks guys for the prompt replies.

    Yes able to edit these 'converted jpeg' files with PP's raw tools which will not be available if they're in jpeg format.

    Just need to know how effective or to what extent am I able to achieve with this PP's workflow.

    Of course it will not be as good as the original PP's raw to jpeg.

    Converting my raw storage to DNG files to squeeze out more space in my HDD
    Hey stevepow,

    Coming back to this topic again, usually what I do is:
    I shoot in Canon RAW (CR2) and then when I connect the CF card to the laptop, the Photo Downloader of PS will have an option to convert them to DNG. This is what I have always done.
    My problem now is:
    This time round, I have a folder of CR2 already on the laptop copied without conversion from an external hard disk.
    Now I tried but cannot convert these CR2 to DNG.

    Can you show me how you convert your RAW (NEF) files to DNG in PS?

    Thanks so much!

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    Default Re: JPEG to DNG to PP-raw

    Quote Originally Posted by limwhow View Post
    Hey stevepow,

    Coming back to this topic again, usually what I do is:
    I shoot in Canon RAW (CR2) and then when I connect the CF card to the laptop, the Photo Downloader of PS will have an option to convert them to DNG. This is what I have always done.
    My problem now is:
    This time round, I have a folder of CR2 already on the laptop copied without conversion from an external hard disk.
    Now I tried but cannot convert these CR2 to DNG.

    Can you show me how you convert your RAW (NEF) files to DNG in PS?

    Thanks so much!
    Hi limwhow,

    Nice for all to be back safe and sound.

    I'm using Lightrooms to convert the raws and export them as DNG, not thru PS

    Hope that helps

    Waiting for you guys to post the pix of our trip

  7. #7
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    Default Re: JPEG to DNG to PP-raw

    Quote Originally Posted by limwhow View Post
    Hey stevepow,

    Coming back to this topic again, usually what I do is:
    I shoot in Canon RAW (CR2) and then when I connect the CF card to the laptop, the Photo Downloader of PS will have an option to convert them to DNG. This is what I have always done.
    My problem now is:
    This time round, I have a folder of CR2 already on the laptop copied without conversion from an external hard disk.
    Now I tried but cannot convert these CR2 to DNG.

    Can you show me how you convert your RAW (NEF) files to DNG in PS?

    Thanks so much!
    Limwhow, click on your raw photo and your Photoshop Camera Raw should open up. Then use the "save image" button on the lower left as usual. If clicking does not open PS camera raw, then use "open with .....

  8. #8
    Senior Member limwhow's Avatar
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    Default Re: JPEG to DNG to PP-raw

    Quote Originally Posted by stevepow View Post
    Hi limwhow,

    Nice for all to be back safe and sound.

    I'm using Lightrooms to convert the raws and export them as DNG, not thru PS

    Hope that helps

    Waiting for you guys to post the pix of our trip
    Hehe... stevepow, thanks!
    All my pictures are third party photographs of you at work!
    And my silhouette shot of you shooting your National Geographic picture at the top of the mountain...!
    I think some of those good people will start the thread and we can all start to contribute already.
    Now got to select photos first, haha...


    Quote Originally Posted by Daoyin View Post
    Limwhow, click on your raw photo and your Photoshop Camera Raw should open up. Then use the "save image" button on the lower left as usual. If clicking does not open PS camera raw, then use "open with .....
    Hey, Daoyin. Thanks again for your advice.
    I have finally manage to see it - the Digital Negative DNG at 'Save as...'.
    Really and sincerely appreciate your help once again!

  9. #9

    Default Re: JPEG to DNG to PP-raw

    Quote Originally Posted by stevepow View Post
    Yes able to edit these 'converted jpeg' files with PP's raw tools which will not be available if they're in jpeg format.
    Jpegs can be edited in Camera Raw without first converting them to DNG format.

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