Jump to content


Photo

Running Kinos on Battery Power?


  • Please log in to reply
6 replies to this topic

#1 Sean Conaty

Sean Conaty
  • Basic Members
  • PipPip
  • 48 posts
  • Cinematographer
  • Los Angeles

Posted 15 September 2007 - 12:41 PM

Hey Everyone,

So I'm shooting a movie in which the majority takes place in an elevator. We'll be doing all of that on stage. Problem is, we have a few shots in which we need to transition from the on-location elevator (that we're matching on stage) to the on-location lobby.

The shot is a 2 shot from the lobby looking in on the heroes and then the door closes. And visa versa: 2 shot, door opens, heroes walk out into the lobby.

Problems:

-Getting enough light into our on-location elevator so that we are not locked into having to match a poorly lit elevator when we're on stage.

Fortunately, we have the ability to turn off the elevator while we're lighting, but then it needs to be live during the take. This means, we can't run any sort of cable into the elevator.

What do you guys suggest for this problem? It's really only a quick shot so it doesn't have to match PERFECTLY what we end up shooting on stage, but I'd like it to be at least similar.

Is there a way to run 4ft 4Bank Kinos on Batttery Power off say an Anton Bauer brick?

Any help or ideas would be greatly appreciated. Thanks,

-Sean Conaty
  • 0

#2 Kieran Scannell

Kieran Scannell
  • Sustaining Members
  • 339 posts
  • Cinematographer
  • Netherlands/Ireland

Posted 15 September 2007 - 01:00 PM

Hi Sean,

You might try Litepanels, I think 4 or 5 of these wonderful little lights would cover your shot, you might have to test but there battery powerd,dimable, and have a surprising output. They also have a nifty set of diffusion and correction filters!

Hope this helps!

Kieran
  • 0

#3 Matt Irwin

Matt Irwin
  • Basic Members
  • PipPipPipPip
  • 389 posts
  • Cinematographer
  • Los Angeles

Posted 15 September 2007 - 01:21 PM

LitePanels is a smart call, but if you prefer / can only afford the Kino for this...
I've run a 2ft 4-bank from a car battery with a 400w power inverter (to mount on a dolly for a long hallway shot). I ran the light for about an hour straight and didn't have any problems with voltage drop. A 4x4 would work perfectly well-- just switch it off when it's not needed and you should be able to get a couple hours use from one battery.
  • 0

#4 Kieran Scannell

Kieran Scannell
  • Sustaining Members
  • 339 posts
  • Cinematographer
  • Netherlands/Ireland

Posted 15 September 2007 - 01:58 PM

LitePanels is a smart call, but if you prefer / can only afford the Kino for this...
I've run a 2ft 4-bank from a car battery with a 400w power inverter (to mount on a dolly for a long hallway shot). I ran the light for about an hour straight and didn't have any problems with voltage drop. A 4x4 would work perfectly well-- just switch it off when it's not needed and you should be able to get a couple hours use from one battery.



This would be a better solution than an array of litepanels, which might indeed be expensive to rent!

Thanks Matt!

Kieran.
  • 0

#5 Josh Fritts

Josh Fritts
  • Basic Members
  • PipPip
  • 35 posts
  • Cinematographer
  • Los Angeles, CA

Posted 15 September 2007 - 06:58 PM

Kino Flo makes an 1800watt inverter with a battery pack. It can run two 4x4 kinos all day on one charge. I usually use them for car rigs, but they will work well for this situation as well. The only draw back is their size and weight. The battery is a 20"x20"x20" cube and weighs around 80 pounds. Most of the time they have caster wheels attached to the bottom. Most rental houses will carry this set up.

Josh
  • 0

#6 edward read

edward read
  • Basic Members
  • PipPip
  • 25 posts
  • Gaffer

Posted 15 September 2007 - 10:04 PM

While Kino's are awesome ( I own a bunch) why not get marine batteries and make a lite box of 12volt lamps? 12 bolt mr16s are really brite and can be wired into a litebox of foamcore really effectively. The batteries can live ontop of the elevator (through the maintenance hatch) and the light box can be 4" thick. Also most elevators have a 15 amp outlet in the maintenance panel - you just need the key.


Kino Flo makes an 1800watt inverter with a battery pack. It can run two 4x4 kinos all day on one charge. I usually use them for car rigs, but they will work well for this situation as well. The only draw back is their size and weight. The battery is a 20"x20"x20" cube and weighs around 80 pounds. Most of the time they have caster wheels attached to the bottom. Most rental houses will carry this set up.

Josh


  • 0

#7 JD Hartman

JD Hartman
  • Basic Members
  • PipPipPipPip
  • 1690 posts
  • Gaffer
  • Edison, N.J. U.S.A.

Posted 16 September 2007 - 11:38 AM

E. Read has provided an excellant idea. Most elevators have a 110v outlet for maintainence, although I recall seeing it on top of the elevator cab. Getting access to it may be a problem, hatches, at least in NYC, NY are all bolted shut to prevent accidents from "elevator surfing". As told to me by a life long elevator repairguy.
What kind of lighting is in the elevator? Cool white tubes? Bare bulbs, small pars? Anything with a socket that you can tap power from?
  • 0


rebotnix Technologies

Abel Cine

Broadcast Solutions Inc

Wooden Camera

CineTape

CineLab

Tai Audio

Metropolis Post

Rig Wheels Passport

Visual Products

Ritter Battery

The Slider

Opal

Aerial Filmworks

Media Blackout - Custom Cables and AKS

Gamma Ray Digital Inc

FJS International, LLC

Technodolly

Paralinx LLC

Glidecam

Willys Widgets

Visual Products

Technodolly

Broadcast Solutions Inc

rebotnix Technologies

Rig Wheels Passport

Aerial Filmworks

Media Blackout - Custom Cables and AKS

Paralinx LLC

The Slider

CineTape

Opal

CineLab

Wooden Camera

Ritter Battery

Gamma Ray Digital Inc

Tai Audio

Metropolis Post

FJS International, LLC

Abel Cine

Willys Widgets

Glidecam