The above Ad will no longer appear after you Sign Up for Free!

Conventional Fixtures Lens tube/Lens barrel

Discussion in 'Lighting and Electrics' started by LekoBoy, Jan 10, 2009.

  1. LekoBoy

    LekoBoy Active Member

    Messages:
    120
    Likes Received:
    19
    Location:
    Moralton, ST
    Which is which? "Run the barrel" means move the lenses, but ETC has their EDLT's, so...
    1. What is the part that holds the lenses called?
    2. What is the cylinder affixed to the fixture body called?
     
  2. waynehoskins

    waynehoskins Active Member

    Messages:
    782
    Likes Received:
    49
    Location:
    Arlington, TX
    I've always understood them to be synonymous, both referring to the dealie that holds the lenses and is what lets you move the lenses with respect to the (lamp and) reflector.

    I'm not sure the proper name for the thingy that the barrel moves within. I may have known at one time and just forgotten it. Housing or body is what, I believe, it's part of, but I'm sure that also includes the rest of the unit, on both sides of the gate.

    But in any event, Lens Tube is ETC-speak for Barrel. Or looking at it the other way, Barrel is old-school-speak for Lens Tube.
     
  3. gafftaper

    gafftaper Senior Team Senior Team Fight Leukemia

    Messages:
    12,547
    Likes Received:
    2,541
    Occupation:
    Theater Manager & T.D.
    Location:
    Seattle, Washington
    I would have to agree with Wayne. In ancient times (before fire) we called it a barrel. Then ETC released the S4 with interchangeable lens tubes and gave us a different term to describe the new design. Today they have merged together to mean the same thing.

    I bet ETC has an official name for the part of the fixture that holds the lens tube and I bet someone from Middleton will stop in and tell us that term in a post or two.
     
  4. MNicolai

    MNicolai Well-Known Member Fight Leukemia

    Messages:
    3,027
    Likes Received:
    983
    Occupation:
    Consultant
    Location:
    Sarasota, FL
    Esoteric and (deleted member) like this.
  5. Esoteric

    Esoteric Well-Known Member

    Messages:
    1,556
    Likes Received:
    59
    Location:
    Dallas, TX
    Winner winner chicken dinner!

    Although the terms are still interchangeable and down here in the south we call the lens barrel part of the instrument body (even though the Source4 body can be taken apart into two pieces).

    Mike
     
  6. derekleffew

    derekleffew Resident Curmudgeon Senior Team Premium Member

    Messages:
    4,416
    Likes Received:
    2,805
    Location:
    Las Vegas, NV, USA
    It probably should be "Run the tube," but perhaps "Run the barrel" somehow relates to Barrel Racing. (Some still say "Spin the bottle" even with S4-Pars.)

    To re-iterate:
    Lens tube.
    Lens barrel.
    The tube goes in the barrel.

    However, in their exploded views of the 360/360Q, Altman calls #1 "Lens Assembly" and #2 "Lens Tube." In the specification sheet sheet, #1 is called a "Lens Tube."
     
  7. waynehoskins

    waynehoskins Active Member

    Messages:
    782
    Likes Received:
    49
    Location:
    Arlington, TX
    Most interesting .. but is that universal, or only ETC-speak?

    Or is it kind of like "speaker", which can mean both "cone driver" and "multi-driver cabinet"?

    Would be interesting to look at some old Strand or Century literature, if any of that's still left.
     
  8. gafftaper

    gafftaper Senior Team Senior Team Fight Leukemia

    Messages:
    12,547
    Likes Received:
    2,541
    Occupation:
    Theater Manager & T.D.
    Location:
    Seattle, Washington
    We probably have our old nemesis local slang to deal with here. There's what the manufacturer calls it and then there's what the crew down at the local theater say.
     
  9. Esoteric

    Esoteric Well-Known Member

    Messages:
    1,556
    Likes Received:
    59
    Location:
    Dallas, TX
    Yup, we still say spin the bottle even with Source4 PARs.

    Mike
     
  10. zuixro

    zuixro Active Member

    Messages:
    369
    Likes Received:
    13
    Location:
    Spartanburg, SC
  11. Esoteric

    Esoteric Well-Known Member

    Messages:
    1,556
    Likes Received:
    59
    Location:
    Dallas, TX
    Now PLAYING spin the bottle is something else entirely. ;-)

    Mike
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice