Canon 6D EOS and AWB

Discussion in 'Canon EOS Digital SLRs' started by Farsical, Oct 8, 2020.

  1. Farsical

    Farsical New Member

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    Canon 6D EOS, 17-35mm
    When the 6D is in AWB mode, how is the sensor deciding the white balance? Specifically, is it taking in information from the entire sensor, and then applying an algorithm? Or is it drawing in information from just a portion of the sensor, or what?

    Thanks in advance,

    Richard
     

  2. johnsey

    johnsey Site Moderator Staff Member Site Supporter

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    Canon isn't going to share their recipe publicly, but one can imagine if you use evaluative/spot/center weighted etc.. meter modes that affects both exposure and white balance.
     
  3. Farsical

    Farsical New Member

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    Thanks for the reply. What I'm really after is if whether or not there is a white balance component to the focus rectangle on the LCD. I'm shooting a job and the person who hired me is insistent that there is. Personally, I don't see it. When I get my photos into LightRoom, I'm seeing that I still have to tune the white balance specific to the light temperatures of the scene (which is fine by me). However, if the focus rectangle did indeed have something to do with white balance, and I choose to focus on the lightest areas of the shot (which I'm being proscribed to do), then I believe—in LightRoom—I would be closer to the mark, temperature-wise, than I'm seeing.
     
  4. johnsey

    johnsey Site Moderator Staff Member Site Supporter

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    You are using touch to focus on the rear screen? That is tied to the focus system and the grid of focus points on your camera not the metering system.
    Exposure is tied into meting system. AWB algorithms I would imagine are tied to that metering mode grid depending on the option you use. Page 243.

    upload_2020-10-9_9-28-3.png
     
  5. johnsey

    johnsey Site Moderator Staff Member Site Supporter

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    Actually yes, to add to your point yes the metering system appears to have some logic based on the focus point(s) used so that it determines how the metering system should react. I have not experimented enough to see how this reacts in each meter mode, and honestly its not a big deal to me, i shoot in manual mode and tweak the exposure accordingly.
     
  6. Farsical

    Farsical New Member

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    Evaluative metering . . . you may be on to something. Smashing! I'll see what my metering mode is set to and go from there. Thanks!
     

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