Jump to content


Photo

16mm cameras voltage


  • Please log in to reply
3 replies to this topic

#1 Pavan Deep

Pavan Deep
  • Basic Members
  • PipPipPipPip
  • 317 posts
  • Cinematographer
  • UK

Posted 18 August 2017 - 10:06 AM

With Super 8 cameras some simpler camera seem to run with two batteries or 3 volts, most silent cameras with a zoom seem to run on 6 volts and most sound models seem run on 9 volts.

 

With 16mm cameras it seems that 12 volt is standard on most [not all] 16mm cameras, but why is 12 volt power popular on most 16mm cameras? Is there a technical reason why lower voltages like 6 volts or 10 volts weren't used?

 

Thanks

 

Pav


Edited by Pavan Deep, 18 August 2017 - 10:08 AM.

  • 0

#2 Mark Dunn

Mark Dunn
  • Basic Members
  • PipPipPipPip
  • 2426 posts
  • Other
  • London

Posted 18 August 2017 - 12:06 PM

I'm guessing, but it does keep the current down. As to the voltage, it's a multiple of the professional Nicad cell nominal voltage, 1.2V, and of the predecessor wet and dry cells. So it would never be something like 10. 6, 7.2, 9.6 or 12 or more, but never 10.

Super-8, being a domestic format, was geared for multiple disposable cells which are nominally 1.5V each.

You'd need an expert to tell you why 1.2 and 1.5 were the nominal cell voltages in the first place. Probably a size/weight/output tradeoff which became a standard.


  • 0

#3 aapo lettinen

aapo lettinen
  • Basic Members
  • PipPipPipPip
  • 1022 posts
  • Other
  • Finland

Posted 18 August 2017 - 01:43 PM

1.2 and 1.5 come from the potential difference of the cell which comes from the materials used for electrodes, they are only related to the technology used in the cells for practical and performance reasons and can only be changed by changing the battery technology. 1.2 is for rechargeable and 1.5 is for regular batteries traditionally (nicad or nimh and carbon+zinc, respectively)
  • 0

#4 Tyler Purcell

Tyler Purcell
  • Sustaining Members
  • 3725 posts
  • Other
  • Los Angeles

Posted 18 August 2017 - 10:35 PM

Well, I mean they're entirely different worlds. Super 8 cameras don't need a lot of power to pull film through a magazine or spin a mirror shutter. Plus, they don't really run at super high speeds like a lot of 16mm cameras do.

12v battery solutions also have enough CURRENT to do these things, that's the trick.
  • 0


rebotnix Technologies

CineTape

Ritter Battery

Abel Cine

Metropolis Post

FJS International, LLC

Wooden Camera

Aerial Filmworks

Willys Widgets

Rig Wheels Passport

Glidecam

Technodolly

Paralinx LLC

The Slider

Media Blackout - Custom Cables and AKS

Opal

Gamma Ray Digital Inc

Visual Products

Tai Audio

CineLab

Broadcast Solutions Inc

CineLab

CineTape

Ritter Battery

FJS International, LLC

Metropolis Post

rebotnix Technologies

The Slider

Gamma Ray Digital Inc

Visual Products

Technodolly

Broadcast Solutions Inc

Aerial Filmworks

Opal

Wooden Camera

Paralinx LLC

Tai Audio

Media Blackout - Custom Cables and AKS

Abel Cine

Glidecam

Willys Widgets

Rig Wheels Passport