Some graflite questions

Discussion in 'Lighting' started by atlcruiser, Oct 30, 2011.

  1. atlcruiser

    atlcruiser Member

    Messages:
    100
    Joined:
    Dec 26, 2009
    Shooter:
    Multi Format
    Hi All,
    I have a set up of 2, 3 cel, graflites and 2 extensions. I have been told/read that the extensions should be no more than 15' from the master unit. Does that sound right?

    How far, on average, can I run the shutter sync cable to the main unit without loss of signal? I will be using PC to household homemade cable.


    Thanks in adavance

    david
     
  2. Jim Jones

    Jim Jones Subscriber

    Messages:
    2,275
    Joined:
    Jan 16, 2006
    Location:
    Rural NW Mis
    Shooter:
    4x5 Format
    Much of the loss will occur in the PC cable. It should not be too long. A household cable can have heavy enough conductors to be used at fairly long distances. I can't find any specific recommendations.
     
  3. atlcruiser

    atlcruiser Member

    Messages:
    100
    Joined:
    Dec 26, 2009
    Shooter:
    Multi Format
    Thanks Jim, I gues we will need to try it out and see how it works.
     
  4. Steve Smith

    Steve Smith Subscriber

    Messages:
    9,042
    Joined:
    May 3, 2006
    Location:
    Ryde, Isle o
    Shooter:
    Medium Format
    Electricity only travels at the speed of light so you don't want it too long!


    Steve.
     
  5. michaelbsc

    michaelbsc Member

    Messages:
    2,106
    Joined:
    Dec 18, 2007
    Location:
    South Caroli
    Shooter:
    Multi Format
    Well, electricity doesn't really travel at the speed of light. The effective wavefront propagates at the speed of light, but the electrons wander around far more leisurely. Much depends on the effective cross section of the conductor.
     
  6. Steve Smith

    Steve Smith Subscriber

    Messages:
    9,042
    Joined:
    May 3, 2006
    Location:
    Ryde, Isle o
    Shooter:
    Medium Format
    O.K. But it goes fast enough for us not to worry about it!


    Steve.
     
  7. atlcruiser

    atlcruiser Member

    Messages:
    100
    Joined:
    Dec 26, 2009
    Shooter:
    Multi Format
    the point of the question is that signal loss will happen over distance thus not triggering the bulbs.