Design Issues and Solutions Gobo in S4 help

Discussion in 'Lighting and Electrics' started by EHansenLX, Sep 22, 2015.

  1. EHansenLX

    EHansenLX Member

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    I've been doing the lighting design for Shakespeare in Hollywood recently and I wanted to use a gobo to project the Warner Bros logo (simple outlines, no color) on the house curtain.

    I'd order a custom steel gobo from rosco or something, but I'm mainly concerned about how the image would appear on the house curtain. (It's a very traditional red house curtain)

    I don't have much experience with gobos so any help would be much appreciated. I guess my main questions are:

    1) Will the logo appear clearly enough to see on the curtain?
    2) Will an ETC Source 4 be the right fixture to do this with?

    Thanks!
     
  2. Les

    Les Well-Known Member

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    Might be careful about projecting that logo unless you have permission from WB.

    As to your questions

    1). It depends - how much ambient lighting will there be, and what is your throw distance? How large do you want the image to be?
    2). ETC Source 4, Altman Shakespeare, Altman Phoenix, Strand SL... Many options. The Source 4 will be the easiest to get a hold of, and make sure it has a 750w HPL for the best bang. The biggest variable will be the lens tube you use. You could go with a zoom fixture, but you will sacrifice some in the optics. I'd sooner pick a fixed-focus fixture with the correct beam angle.

    From the way it sounds, should be easy-peasy. Viewing angles will be sacrificed if the drape has a lot of fullness (especially on the far sides of the auditorium), but to most people just walking in, it will look fine. But do check on copyright issues before you project that logo.
     
  3. seanandkate

    seanandkate Well-Known Member Fight Leukemia

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    Everything that Les said. And if the image is still a little fuzzy, you can use a donut to sharpen the image a bit (at the expense of some intensity).
     
  4. derekleffew

    derekleffew Resident Curmudgeon Senior Team Premium Member

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    In days of old, every showroom in Vegas had its hotel's logo projected onto the main rag. Today, Jubilee! at Bally's may be the only one left, and I'm not sure of that one.

    Here's a handy Excel worksheet to help you in determining which lens tube to use. Source Four Gobo Mag Calculator https://www.etcconnect.com/WorkArea/DownloadAsset.aspx?id=10737461913 . Usually, the center of the balcony rail is the best hanging location. If no balcony rail, either booth or farthest FOH cove or catwalk. The closer to perpendicular to the surface, the less keystoning.
     
  5. rsmentele

    rsmentele Well-Known Member Premium Member Fight Leukemia

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  6. BillESC

    BillESC Well-Known Member

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  7. DavidNorth

    DavidNorth ETC Rigging General Manager Premium Member Fight Leukemia Departed Member

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  8. EHansenLX

    EHansenLX Member

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    Thanks for all the help. I'll have to give it a shot to see how the image looks. Thanks derekleffew for the idea about hanging on the balcony railing. I hadn't thought about that.

    Bill, after seeing your image, do you (and others) think it would be possible to use a traditional projector (no gobo) to project the image from a computer onto the house curtain? My concern would be seeing the rest of the projection area in black or something? Again, not a lot of projection experience here.

    Thanks!

    [EDIT]: I'll be sure to check with the director about rights using the WB logo.
     
  9. Ford

    Ford Sr Product Manager, Chauvet Professional

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  10. BRDinNC

    BRDinNC Member

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    I deal with Gobos all of the time in Theatre and corporate events. For the best quality we always spend the extra $50-$60 for the B&W Glass. Also they hold up to the heat better. "Extra Definition Lens Tubes" are great, but you can try your lens first with a donut and then decide if you want to rent one. For the WB logo? It doesn't have enough detail in it where it would make a big difference in my opinion. EDLT are more for projecting picture like gobo like in this link.
    [​IMG]
    http://images.apollodesign.net/Products/ProductView/SR-0065.png

    The steel gobos will warp over time and will fall apart eventually. It all depends on budget and how long the show run is. If it is a budget issue and resolution quality isn't a major issue you can always order a duplicate for a lot less than the original. Projectors can do a good job, but like Ford said it does depend on the quality of projector, as well as skill level setting it up. Where as a leko is pretty straight forward for a new tech to set up and use.
     
    Ford likes this.
  11. EHansenLX

    EHansenLX Member

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    Thanks for the replies. Our theater has a few great projectors lying around, so I'll look into that first.
    Definitely going to need a shutter system though. Thanks!
     
  12. BillESC

    BillESC Well-Known Member

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  13. patrickh

    patrickh Member

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    Does the curtain have fullness? This can ruin the effect
     
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