G/046 Lighting Rig: Difference between revisions

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m (→‎Dimmers: - with content from Lighting Desk page)
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* IEC plugs on flying leads out.
* IEC plugs on flying leads out.
* If they're buzzing, they're happy!
* If they're buzzing, they're happy!
**'''faults'''
***Top dimmer channel 3, Likes to turn itself on to around 30% after a while. i.e. It's level can be raised, but not lowered beyond 30%. The time taken for this fault to appear can be minutes, or hours. It does not seem to be linked to heat - on 18/02/2010 the behaviour was observed when warm, and cold (given a break for 1/2 hour before retrying). This dimmer channel corresponds on the desk to what was "old channel I" - i.e. pre 18/02/2010 it would have been bottom dimmer channel 3..
***Bottom dimmer channel 3, The transistor/triac looks fried and has continuity between the emitter and collector, also two medium-power 270 Ohm resistors have physically split. This dimmer channel corresponds on the desk to what was "old channel C" - i.e. pre 18/02/2010 it would have been top dimmer channel 3..





Revision as of 03:02, 18 February 2010

Power

The rig eats a lot of juice: It is fed from two 32amp Ceeform plugs on the wall (same wall as fire escape). According to the Mains Circuits page, both are on the Yellow Phase.

Dimmers

Pulsar status dimmers: (2 of)

  • 8-pin Din analogue signal in, 0-10v
  • With pre-heat (good for not shocking cold bulbs if they suddenly get turned on, this increases lamp life.
  • 6 5amp channels each.
  • IEC plugs on flying leads out.
  • If they're buzzing, they're happy!
    • faults
      • Top dimmer channel 3, Likes to turn itself on to around 30% after a while. i.e. It's level can be raised, but not lowered beyond 30%. The time taken for this fault to appear can be minutes, or hours. It does not seem to be linked to heat - on 18/02/2010 the behaviour was observed when warm, and cold (given a break for 1/2 hour before retrying). This dimmer channel corresponds on the desk to what was "old channel I" - i.e. pre 18/02/2010 it would have been bottom dimmer channel 3..
      • Bottom dimmer channel 3, The transistor/triac looks fried and has continuity between the emitter and collector, also two medium-power 270 Ohm resistors have physically split. This dimmer channel corresponds on the desk to what was "old channel C" - i.e. pre 18/02/2010 it would have been top dimmer channel 3..


Eurolite DPX-405: (1 of)

  • DMX512 control Via 3pin XLR. Pass Through.
  • 4 5amp channels each.
  • IEC sockets out.
  • No Preheat.
  • 13a Plug currently.

Desk

Zero88 Sirius24 see Lighting Desk

Hardware

  • On the ceiling is a home-made steel pipe frame, with some IWB's here and there (IWB's not connected).
  • More pipe clamps, lamp clamps in box under lighting desk.

Cables

  • Box of various lengths of 15a in Techie room.
  • Also, some UK ->15a adaptors.

Patching

  • IEC Panels feed the plugs on the ceiling.
  • IEC leads from dimmers. MAX 5a (1Kw).

Lights

Furse fresnels: (2 of)

  • Old fresnels.
  • No barndoors
  • TUNGSTEN


Selecon Asymetric floods: (2 of)

  • Not old! - still incredibly popular as of 01/10
  • Asymetric! not even spread of light. spread gets better, the further they are from the wall. Remember, big side at bottom.
  • Use to light back walls evenly, rather than a large "splodge" of light at the top, and not much at the bottom.
  • The above makes them very useful when doing Chroma_key work.
  • Lamp access by flipping the catch on top - whole fornt of fixture is hinged to allow lamp change without re-focusing.
  • Colourframe located by flipping open the cover at the top. Not the catch! Slide out colourframe from top.
  • No Barndoors (selecon do still sell them though)
  • TUNGSTEN 500w


Selecon Symetric Floods: (1 of)

  • As Asymetric, but even.
  • No colourframes.
  • No Barndoors (selecon do still sell them though)
  • TUNGSTEN 500w


Berkley Colortran Floods: (1 of)

  • Compact, yet bright.
  • With bardoors.
  • TUNGSTEN 500w


Generic bar of 4 floods: (2 of)

  • normal floodlights
  • 3 functioning bulbs per bar.
  • DIY colourframes from gridding - bend to suit...
  • 300w / compartment


Generic floods: (3 of)

  • normal floodlights
  • DIY colourframes from gridding - bend to suit...
  • 300w


Strand patt 123 Fresnels: (2 of)

  • The funny egg shaped ones.
  • No colourframes.
  • T17 / T1 lamp.
  • TUNGSTEN 1000w


Strand patt 743 Fresnels: (2 of)

  • Adjustment control at rear, and behind barndoors.
  • Rotating barndoors.
  • Colourframes in cupboard.
  • T19 / T11 lamp.
  • TUNGSTEN 1000w


Pole-Op Fresnels: (2 of)

  • With rotating barndoors
  • adjust Pan, Tilt & Beam Via knobs.
  • Colourframes - the octagonal ones. in cupboard.
  • Rotating barndoors.
  • HALOGEN 1000w
  • These are more "orange" than tungsten, so bear that in mind when colour balancing...


Gels

Colours

  • Lee 132 (medium blue)
  • Lee 106 (primary red)
  • Lee 049 (purple)
  • Rosco 65 (pale blue)
  • Lee 117 (steel blue)
  • Unknown dark blue, marked as "199" (probably Lee regal blue)
  • Unkown purple (possibly congo blue lee 181, looks like UV - but isn't really)
  • Unkown green (various & dark)
  • Rosy Pink
  • yellow


Diffusions & scrims

  • Scrim - looks like tracing paper, but made of plastic and not nearly as flamable. Like gels, will melt if touching the glass of a flood. Use this to soften light - you can also put over only some of the fixture (called half scrim) to soften light e.g near to the source only. Very useful, but underused.


Colour Temperature Filters

  • 1/2 CTB. Lee 202 or eqiv. Looks grey. decreases output of lower CT's (orangeyness reduction). Makes thing noticeably dimmer.
  • 1/4 CTB less strong CTB.

spare lamps

Spare lamps are hidden at the back right of the cupboard.

  • K1 Lin 500w (x4)
  • T18 (x2)
  • T17 (x1)

LD toys

Swatch books

These are on the lighting desk table.

  • Lee designer colour order - 02/2010 version
  • Gam designer colour order - 02/2010 version
  • Rosco supergel - 02/2010 version
  • Rosco Lux - 02/2010 version


other stuff

  • chinagraph pencils for writing silly (and possibly useful) messages on gels.