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Activity Forums DSLR Video Canon 60d: Weird blue/gray color appearing

  • Canon 60d: Weird blue/gray color appearing

    Posted by Lori Harfenist on March 6, 2013 at 4:22 pm

    Hi,

    I’m shooting green screen footage using a Canon 60d. I’m getting some weird blue/gray shadowing on my subject’s forehead (see image example here: https://www.theresident.net/wp-content/uploads/sample3.png). It seems like when she wrinkles her forehead and shadows are created, this is when the weird blue/gray appears. My settings are:

    1920×1080 24
    movie exposure: auto
    shutter speed: 60
    aperture: 5.6
    ISO: auto
    exposure comp: 0
    Auto lighting optimizer: strong
    picture style: portrait
    white balance: K 3400
    peripheral illumin. correct.: enable
    highlight tone priority: disable

    Any ideas of how to fix this issue? Thanks very much!

    Lori Harfenist replied 13 years, 2 months ago 3 Members · 19 Replies
  • 19 Replies
  • Steve Crow

    March 6, 2013 at 6:01 pm

    Your link is broken but:

    1) turn OFF auto lighting optimizer

    2) why are you shooting on all auto ?- that’s going to cause you issues even though at first it may seem “easier”

    My best suggestion is to set your movie exposure setting to manual which will give you ful control over the camera. The auto setting is why, for instance, your camera set its aperture to 1/60 when 1/50th would have been more ideal – not a huge deal in this particular case but still.

    3) Turn off peripheral illumin. correct – that’s for when you are shooting JPG still images

    Steve Crow
    Crow Digital Media
    http://www.CrowDigitalMedia.com

  • Lori Harfenist

    March 6, 2013 at 6:06 pm

    Hey Steve,

    Thanks so much for some input! Sorry, the errant closing parenthesis broke the link – it should be https://www.theresident.net/wp-content/uploads/sample3.png

    I’m using a lot of auto because I’m pretty new at the camera. Thanks for the tips – I will try those out.

    Can you tell me why you recommend turning off the auto lighting optimizer? It gives a really nice brightness to the green screen, which I like – but of course not at the expense of blue forehead. 🙂

    Again thanks for your input!

  • Steve Crow

    March 6, 2013 at 6:16 pm

    The Auto Lighting Optimizer is designed to “help” with shadows – exactly where you are having issues so that’s why I am suspicious of it – plus you have it on strong. I was able to look at the screen grab and another thing you might try is to bounce some light to the face and forehead using a reflector – not too much, just enough to help combat the natural shadows caused by the hair – give that a shot and let us know how it works out.

    Steve Crow
    Crow Digital Media
    http://www.CrowDigitalMedia.com

  • Lori Harfenist

    March 6, 2013 at 6:20 pm

    Ah, that makes sense then, to turn down the auto lighting stabilizer then!

    I will try out your suggestions when I shoot more tomorrow and will let you know how it works out! If you have any others, feel free to let me know. I’m very new at this camera (and admittedly, cameras in general!), so your input is super helpful!

  • Lori Harfenist

    March 7, 2013 at 5:48 pm

    Hey Steve,

    Argh – I tried all of these things, and nothing seemed to work. Any other suggestions?

    I feel like I’ve tried everything. Could it be the camera itself?

    The one thing I haven’t tried is switching the image quality setting from M to L – I thought that was only for stills…

  • Steve Crow

    March 7, 2013 at 5:58 pm

    I’m surprised to hear that, okay try setting your white balance to one of the built in settings like daylight, shadow, indoor etc.

    And you said you tried putting more light on the face also? It’s something to do with color, color balance I think.

    One more thing….the screen capture you provided, was that directly from the H.264 video shot by the camera or did you compress the video into another format and THEN made the screenshot?

    Steve Crow
    Crow Digital Media
    http://www.CrowDigitalMedia.com

  • John Young

    March 7, 2013 at 6:26 pm

    Is this a frame grab from video or a still image?

    Judging from the image, it looks like moire/aliasing. This is a problem for most video cameras, but it is especially exaggerated in DSLRs. What are your picture style settings?
    Do some research into suggested picture style settings. Your sharpness should probably be turned all the way down.

    John

    John Young
    Surrounding Media

  • Lori Harfenist

    March 7, 2013 at 6:29 pm

    Hi John,

    It’s a screen grab from video. I’ve never had this issue with any other video camera, so it’s weird!

    I am using the portrait picture setting, but I also tried just standard.

    I haven’t tried turning down sharpness, but I will! Will that make the picture blurry, though? I need the subject to look nice and high-def crisp.

  • Lori Harfenist

    March 7, 2013 at 6:49 pm

    Cool, I will try that on tomorrow’s shoot and let you know how it goes. It seems so weird that it’s so localized though. Such a strange thing!

  • John Young

    March 7, 2013 at 6:51 pm

    [lori harfenist] “Will that make the picture blurry, though? I need the subject to look nice and high-def crisp.”

    No, not all all. Keep in mind that DSLRs are built for still images with a resolutions of 5000 x 3000 or higher. When you take the sensor and imaging features built for high resolution images and subsample that down to 1920 x 1080 (through line skipping), that is when you can big problems moire and aliasing. And like Steve said, if you need a little more sharpness later on, you can add it in the finishing phase.

    [lori harfenist] “I’ve never had this issue with any other video camera, so it’s weird!” These problems exist with other cameras to a much smaller degree than they do with DSLRs. You really have to be cognizant of it.

    John Young
    Surrounding Media
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