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Thread: Converting Raw To JPEG

  1. #1

    Default Converting Raw To JPEG

    Hi,

    I am using Canon's bundle software to open my raw file. Most of the time I just push up the sharpness to 10/10 scale and a minor tweak here and there. However, when I convert the file to JPEG, the edge seems to be boxy which does not appear during raw preview. Anyone knows why?
    Canon EOS450D+ EF 50mm II f1.8+ Tamron SP AF 17-50mm f/2.8+ Tamron AF18-200mm F3.5-6.3+ Sigma 530

  2. #2

    Default Re: Converting Raw To JPEG

    Your sharpness setting. Try 3

  3. #3

    Default Re: Converting Raw To JPEG

    too sharp, oversharpening causes that sort of artefact to appear

  4. #4

    Default Re: Converting Raw To JPEG

    Ditto.

    Canon's DPP tends to oversharpen images from RAW to JPEG. It is not a WYSIWYG thing.
    Leave the sharpness from where it is, maybe turn a notch up. Personally use DPP for cropping, white balance, and at times a little curve...everything else go to Photoshop if I have the time.

  5. #5

    Default Re: Converting Raw To JPEG

    Having said that, its the software fault for the boxes on the edge? Using photoshop won't have these results?
    Canon EOS450D+ EF 50mm II f1.8+ Tamron SP AF 17-50mm f/2.8+ Tamron AF18-200mm F3.5-6.3+ Sigma 530

  6. #6

    Default Re: Converting Raw To JPEG

    if you oversharpen in photoshop, the same will happen.

    oversharpening can be done anywhere

  7. #7

    Default Re: Converting Raw To JPEG

    For this over-sharpening matter, any image processing software will create the "boxy" effect mentioned in your mail or "halo" effect in other instances. "Controlled" sharpen a picture to optimally improve the picture and to NOT to over-sharpen the image.

  8. #8

    Default Re: Converting Raw To JPEG

    Having it preview in the Canon software, even the sharpness was tuned to 10/10, it did not seems boxy. It only happen when I convert it to JPEG. Does that mean any changes I made in RAW format and converting to JPEG will not be the same?
    Canon EOS450D+ EF 50mm II f1.8+ Tamron SP AF 17-50mm f/2.8+ Tamron AF18-200mm F3.5-6.3+ Sigma 530

  9. #9

    Default Re: Converting Raw To JPEG

    Quote Originally Posted by EelXam View Post
    Having it preview in the Canon software, even the sharpness was tuned to 10/10, it did not seems boxy. It only happen when I convert it to JPEG. Does that mean any changes I made in RAW format and converting to JPEG will not be the same?
    You need to understand that JPEG is a compressed format. Therefore you get compression artefacts.
    Alpha

  10. #10

    Default Re: Converting Raw To JPEG

    Quote Originally Posted by EelXam View Post
    Hi,

    I am using Canon's bundle software to open my raw file. Most of the time I just push up the sharpness to 10/10 scale and a minor tweak here and there. However, when I convert the file to JPEG, the edge seems to be boxy which does not appear during raw preview. Anyone knows why?
    If all you're doing with your RAW files is increase the sharpness you're better off shooting in JPEG and just let it be.

    As others have said... oversharpening causes the files to look terrible. Subtle is better.

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