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  • #31
    UPDATE: It's been a month since I wrote about the new Barco HDR LS4K installation here,
    but literally since the day the install was finished I was busy running 70mm BRUTALIST shows
    and the other numerous live events we do here. But I've finally got some time for an update 4U:

    Due to the booth layout and logistics here, my whole booth had to pretty much be torn apart
    to get the Dual Sony 515 setup out and the new BARCO in. About the only things that weren't
    moved during the install were the audio racks and the two JJ's. Moving all that stuff was a bit
    of a pain, but on the positive side, it was also an opportunity to clean up a lot of booth-clutter.

    Now that I've had some time to work with the new BARCO a bit, I can tell you that the picture
    looks fantastic. There's a definite improvement over our aging SONY's that were pulled out.
    We did a free screening of WILD ROBOT in HDR to generate some neighborhood buzz, and
    during testing I was able to walk up to the first row and see color & image detail I know would
    not have been there with the old system.


    The LS4K has about the same height & width as the two Sony's that were removed, but it does
    stick out further on the back-end, leaving me a little over 14½ inches between it and the safety
    railing, since all of our projectors are on an elevated platform to give a level shot to the screen.
    Getting 35mm over to the Film-Tech Cinema Systems JJ isn't too bad, but it's impossible to
    actually carry a 70mm reel past the back end of the projector. I've got to put it on the floor and
    roll it over there.

    The HDR LS4k definitely puts out a lot less heat than the old Sony set up, which was using
    12 bulbs every show to get a picture on screen. Even after almost a full day of running the
    new Barco, the outside of both the power supply/cooler/laser box or the projector are barely
    above room temperature. I've been able to significantly back off on the amount of air
    conditioning needed to cool the booth.

    Today's Fun Fotos:
    Because our booth is on an elevated platform, it's impossible
    for me to get back far enough to get a wide-shot picture.


    NuBarcoSide.jpg

    This is what it looks like from the auditorium. The projector 'head' is on top,
    the bottom box is the power supply/liquid cooler/laser source. The little camera
    at the bottom right is part of the auto-calibration system that runs every morning.


    NuBarcoFront.jpg

    Not a whole lot of room to get by the Barco with 70mm reels!
    (If only they made 70mm film a little smaller. . . )


    NuBarco70mm.jpg

    We also got a new screen. (In fact, all 5 auditoriums here got new screens,
    and will also be getting new Barco laser projectors soon, but not HDR
    's)

    NuBarcoTest.jpg

    Our old screen was a silver screen, (for 3D) which I really hated. Since this is a wide auditorium
    there was an obvious difference in light distribution if you sat too far off center. Getting a flat light
    on screen from the JJ's was always a challenge. I managed to do a pretty decent job of that, but
    it always took a lot of effort to get it to my satisfaction. We have no plans to do 3D here in the future.
    Yes, there are 'screen shakers' attached to the back of the screen sheet.

    Actually, we didn't really need a new screen, just new perforations that were compatible with the
    wavelength of the laser light. So I suggested that instead of replacing the entire screen, we just
    get new perforations. I know a guy on Market St who said he can get me new perfs whole-sale!
    (This is the same guy who offered to sell me the Golden Gate Bridge. The asking price was
    pretty reasonable, but I have no place to put it
    )


    > EDIT: I Have NO idea why a "Film Tech" link randomly appears in some of my posts.
    I've tried deleting it, but it just keeps coming back
    Attached Files
    Last edited by Jim Cassedy; 02-17-2025, 11:24 AM. Reason: To Try & Get Rid Of That Darn "FILM TECH" Link !

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    • #32
      Nice to hear about the changes, mostly good. Booth temp is a plus, non-silvered screen, etc.
      Forgive my ignorance of 4K systems, but what is the big black box under the Barco on the stand?

      That little black leveling foot kepper-on-er bracket looks like a shin biter. I'd be tempted to fold it over or grind off the overhang. lol.

      Is the platform too high to "place" your reels through the gap in the hand-rail near where they are needed rather than do the reel bowling game?

      If rolling is 100% required now I'd be tempted to fashion an aluminum "U" beam sized appropriately to safely roll the reels along to the outside of the handrail, closer to waist height as a projectionist back saver, but also to reduce some risk of a reel toppling over.

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