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Thread: Problems using black background

      
   
  1. #1

    Super Wamp
    Cregan Tur's Avatar
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    Problems using black background

    I was hoping someone could help me figure this out. I tried using the black background in my new 12" light cube last night. I was using the same camera settings that I use for a white or neutral background and it overexposed the crap out of the image. I messed around with the white balance (which I have at Tungsten +3) and took it all the way down to -3 and it was still overexposing.
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  2. #2
    Banned Wamp Guru
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    Martyn's the best person to ask. I read his tutorials which helped a lot but I have my own problems with the background, hence the rubbish pics of the Ogre conversion for my AOW entry

  3. #3

    Super Wamp
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    What's Martyn's handle?
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  4. #4
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    Quote Originally Posted by Cregan Tur View Post
    What's Martyn's handle?
    War Griffon, you know the grumpy Welsh bloke!

  5. #5

    Super Wamp
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    Got it... I guess I've never heard his name before.
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  6. #6
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    This won't have anything to do with the white-balance.
    Are you using automatic or manual settings?
    If you've got manual control, you'll want to put like a neutral, light grey sheet in and take your metering off of that and then replace the background with your black background before taking the shot.

    If you've only got automatic, hopefully you can set your metering to only use a single sample at the center of the image, instead of several points all over the field of view.

  7. #7

    Wamp Incarnate
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    Damn, I just broke the first rule of how not to be seen...

  9. #9
    Super Wamp Lost Boy's Avatar
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    Try a dark blue sheet of thick paper from an art shop...
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  10. #10
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    This is a bit of threadomancy here but, as said, the main problem is that your camera uses a multi-spot or average metering to adjust the exposure. I.e. it takes into account both the mini and the black bacground. The camera sees shadows and highlights and tries to make them look neutral. So, if there are more dark spots than lighter ones, the camera will try to even them out, by lighting them up, so the dark will look more like neutral, but the light ones will wash out.
    Your best bet is to make a spot reading, i.e. use a single focus, it looks like a dot in the metering menu, aim the model and take the shot. This will hopefuly expose the image correctly for the mini but it will leave the background dark.
    Lastly, make sure to have a good lighting source and most preferably with daylight bulbs.Something that I do not, and struggle with varying results..
    Err..is human right..

 

 
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