Would this really work?

Discussion in 'Archived Threads 2001-2004' started by TreyP, Oct 30, 2001.

  1. TreyP

    TreyP Stunt Coordinator

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  2. Michael St. Clair

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    Picture will be dim and lacking in resolution.
    Might be OK for a background lightshow at a party.
     
  3. TreyP

    TreyP Stunt Coordinator

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    But it 'will' work?
     
  4. NathanP

    NathanP Supporting Actor

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    It'd work fine, but it would be a bit dimmer than regular tv.
    You also have to build stuff when doing this and turn your TV upside down to have it work properly..
     
  5. Dave Poehlman

    Dave Poehlman Producer

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    If you look closely, the kid with the sign is the exactly the same in each picture. This would lead me to believe they just superimposed the kid over a picture of a TV rather than an actual photo of him in front of a screen.
    I like how they changed the font on the sign to make it look like it's not the same kid.
    But it would be interesting to see how it worked.
     
  6. DustinDavis

    DustinDavis Stunt Coordinator

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    If you look even closer, it appears the kid must be a vampire or something as he casts no shadow on the screen.
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  7. DaveF

    DaveF Moderator
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    This is very likely a large, plastic Fresnel* lens with instructions for positioning it. The Fresnel lens is used to image the TV screen onto the wall, hanging sheet, etc. As pointed out, you'll have to turn your TV upside down, for this configuration. You'd probably have to turn the TV brightness and contrast all the way up as well.
    Would it work? Probably. There could be significant color distortion, plus the general hassle of setting it up. Of course, it's far cheaper than a big TV, and might work well for parties, as someone suggested.
    * like the ones that used to be put in the rear windows of Motor Homes, to help with the rear-view mirror. Large, thin plastic lens, with bevels cut in the plastic to provide the lens power.
     
  8. Guy Kuo

    Guy Kuo Supporting Actor

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    I believe you are right in pointing out that the "projected" image in the pictures aren't actually projected. The other tell tale sign is that there is no parallax at all between the image which is on the sign vs the image on the screen. In real life, the placard would be some distance in front of the screen (in order to fit the kid). The only time you would see no parallax displacement of the image plane at the placard vs the plane of the screen would be if the camera lens was also on the axis of the projector. Gee, must be an absolutely amazing lens to still throw a good picture with the camera smack dab in front of the lens.
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    www.ovationsw.com
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