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Hi Def projector?

Discussion in 'Projectors, Screens & Video Processors' started by (GTV)Chris, Sep 21, 2004.

  1. (GTV)Chris

    (GTV)Chris
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    Hi

    I am looking for a projector that can output an HD signal.
    The playback machine will be an HD player with HD SDI output? (BNC)
    How do I get this into a projector?
    Will most on the market do the job or will it be an expensive affair?

    Many thanks

    Chris
     
  2. Branxx

    Branxx
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    What do you mean with:

    "I am looking for a projector that can output an HD signal."

    Projectors generally do not output sygnals. Also what do you mean with HD SDI interface? Is this different from standard SDI interface (which is limited to standard definition signal).
     
  3. SanPedro

    SanPedro
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    You'll need a PJ with a resolution greater than 1280 x 720 pixel resolution.

    I'm not totally up on Hi def TV but there seem to be 2 flavours - 720p and 1080p.

    720p relates to a resolution of 1280 x 720 pixels.

    Many affordable projectors fall into this category

    Chris
     
  4. (GTV)Chris

    (GTV)Chris
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    Thanks Chris,

    Branxx - I belive the output of the player has a BNC connector with " HD SDI "
    Written upon it?
    There doesn't seem to be a DVI port, so I am assuming I need a projector with this type of input so I can project at HD resolution.

    Cheers
    Chris
     
  5. Messiah

    Messiah
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    Not aware of any projectors with an SDI input so think you will need a suitable scaler like the £2000 Crystalio which can accept an SDI feed and then output to the display device via DVI.

    And as said above, to watch HD material in native format you will need a pj with a panel resolution to match the HD resolution. 1280x720 (suitable for 720p HD) pjs are plentiful at the moment but I think the only true 1920x1080 pj is a JVC D-ILA machine for plenty wonga :)
     
  6. Gordon @ Convergent AV

    Gordon @ Convergent AV
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    HD-SDI i not the same as SDI.

    HD-SDI is really, as is SDI, broadcast stuff. HD-SDI is likely to be 720P or 1080i. GEFEN are about to do an HD-SDI to DVI convertor which is as yet untested by anyone I know and will be around$1000 excluding sales tax, duty and shipping.

    HD-SDI inputs on scalers, other than mega broadcast jobs like Snell and Wilcox/Terranex is unlikely just now as demand is miniscule.

    What is your source and what are you trying to achieve?

    Gordon
     
  7. (GTV)Chris

    (GTV)Chris
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    My friend is cutting a film that is being shot in HD.
    At various points of the feature he will want tro conform the HD rushes and project them for a viewing etc. This is before the final picture that will then be transferred to film.
    So, I guess he just wants to project it in the best format possible, as close to the actual shot rushes as possible.

    Cheers

    Chris
     
  8. Branxx

    Branxx
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    (GTV)Chris ,

    This is very simple requirement. Assume your firend has the movie files either on hard disk or burned onto a DVD media (and encoded in mpeg2). Connect a PC to a projector via normal VGA cable and you will be able to see the move in its true quality. The potential negative side effect of this setup is that the quality is in excess of what an average viewer using the comercial solution will see.

    If your friend is shooting the movie in 720p resolution any projector with 720x1280 panel or 768x1366 will work well without having to scale down the image. If the resolution is 1080i/p than look for projector with at least 1024x???? panel (usually 1024x1366 or newer JVC D-ILA projector with 1050x1400).
     
  9. deckard

    deckard
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    The Barco Cineversum Master video processor can be configured with multiple input modules including SDI and HD-SDI, but it doesn't come cheap and really needs to be connected to a matching Cineversum display, although it does have RGB outputs for non-Cinversum displays.

    Details of module here.
     

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