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
  • 371 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
  • 2797 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
  • 1168 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
  • 4274 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


Wooden Camera

Glidecam

Paralinx LLC

Visual Products

Gamma Ray Digital Inc

Tai Audio

Rig Wheels Passport

rebotnix Technologies

Ritter Battery

CineLab

Broadcast Solutions Inc

Media Blackout - Custom Cables and AKS

New Pro Video - New and Used Equipment

The Slider

Abel Cine

Metropolis Post

Willys Widgets

FJS International, LLC

Aerial Filmworks

CineTape

Technodolly

Aerial Filmworks

Rig Wheels Passport

Paralinx LLC

Glidecam

Technodolly

New Pro Video - New and Used Equipment

FJS International, LLC

CineLab

Tai Audio

rebotnix Technologies

Metropolis Post

Visual Products

Abel Cine

Ritter Battery

Broadcast Solutions Inc

Gamma Ray Digital Inc

CineTape

Wooden Camera

Willys Widgets

Media Blackout - Custom Cables and AKS

The Slider