Grain and blur in live view?

Discussion in 'Beyond the Basics' started by Laurenbiz, Nov 4, 2015.

  1. Laurenbiz

    Laurenbiz TPF Noob!

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    I have an Adobe Raw file that is blurry and noisy, and I have no clue why. I set the camera to auto for the person who had to use it.

    When the lady took the camera from me, I saw her click the live view button on the camera. She then took our picture. Now that I've opened the Raw file on my computer, I'm really confused as to why it looks the way it does. Would it be because of live view?

    EXIF:
    Canon EOS 60D, L-series 16-35mm lens
    ISO 100
    f 11
    shutter 1/500
    all 9 focus points on
    (auto mode)

    I'd appreciate any insight into what may be contributing to the grain and lack of sharpness.


     

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  2. DB_Cro

    DB_Cro No longer a newbie, moving up!

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    It looks like the image was heavily cropped.
    Do you have the original 18mpix file?
    The image you posted is 1/4 the original size.

    There IS some motion in the image which accounts for a slight blur, but there's no excuse for
    this much grain at ISO100 other then cropping.
     
  3. dennybeall

    dennybeall No longer a newbie, moving up!

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    Don't know Canon but in Nikon the focus in Live View is a different method. With a change to Live View you need to give it a second to focus.
     
  4. KmH

    KmH In memoriam Supporting Member

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    Fortunately, digital cameras don't have grain.
    Digital cameras instead have image noise.

    All digital images have some mount of image noise.
    Under exposure makes image noise more visible.
    Cropping makes the remaining pixels larger and the pixels that have noise will be more prominent.

    In Live View mode the 60D uses contrast detection AF and yes contrast detection takes a bit longer second to focus than the phase detection used to shoot stills when Live View does not have the main mirror up out of then light path to the image sensor.
     
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  5. gsgary

    gsgary Been spending a lot of time on here!

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    Ive never seen grain in a digital file
     
  6. Derrel

    Derrel Mr. Rain Cloud

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    f/11 at 1/500 second and at ISO 100? You must have been very underexposed unless you were in exceptionally brilliant lighting in late October.
     
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  7. Laurenbiz

    Laurenbiz TPF Noob!

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    Thanks for the responses so far! I apologize for using "grain" to explain the image noise.

    Derrel, the Raw files were extremely underexposed. I converted a Raw file into Jpeg (no other editing) and attached it here.

    My only guess is that this has something to do with the lady switching the camera to live view. I also thought setting the camera to auto mode would be easiest for her. I NEVER use auto mode and NEVER use live view, so this has me stumped!
     

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  8. Braineack

    Braineack Been spending a lot of time on here!

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    your camera doesn't have the DR for that sort of recovery.
     
  9. DB_Cro

    DB_Cro No longer a newbie, moving up!

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    Oh yeah, that's severely underexposed.
    Forget about that image, it's not camera's fault.
     
  10. Laurenbiz

    Laurenbiz TPF Noob!

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    PS: Just so you know I'm not crazy, here are other photos I've taken! I'm no pro, but things are much better when I use manual mode and when don't use live view. :)
     

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  11. Braineack

    Braineack Been spending a lot of time on here!

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    Live View has no bearing on the final image created.
     
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  12. Dave442

    Dave442 Been spending a lot of time on here!

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    I guess the good thing is that at those settings there is no blur and everything's in focus. Recovering almost three stops looks fine for the people to look at on their phone. I would not crop in so much, someone else took the shot.

    Maybe she did this to you on purpose as a Halloween trick.
     

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