Jump to content



Photo

Focus Pulling with Film Cameras


  • Please log in to reply
7 replies to this topic

#1 Sava Silin

Sava Silin
  • Basic Members
  • PipPip
  • 11 posts
  • Director
  • Ukraine

Posted 13 April 2018 - 12:11 AM

Hi guys, I've got a couple of dumb questions about film cameras, I hope you'll help me to figure it out. I know there are tons of film cameras, lets imagine I'm talking about Arricam LT. 

 

How does people maintain the focus ring or zoom ring on the film camera if camera is on the crane and you can't touch it? Is there any wireless systems for film cameras?

 

Also, if you are a DP and you shooting handheld and you're walking/running with the subject, is it DP's job to control focus ring or he has assistant that runs all the time next to him?

 

Also, Is there anyway to transmit on separate screen what you shoot with the film camera during production?

 

I know, this is kinda silly questions, but I'm just new to film cameras, that's why I'm asking.


  • 0

#2 David Mullen ASC

David Mullen ASC
  • Sustaining Members
  • 20318 posts
  • Cinematographer
  • Los Angeles

Posted 13 April 2018 - 12:38 AM

You can put a remote focus system on a film camera's lens just like you can on a digital camera's lens.

 

You can put a transmitter on a film camera that has a video tap to send a picture without a cable, or you can run a cable from the video tap to a monitor, etc.  Just be aware that most taps are standard-def, only a few are high-def.


  • 0

#3 Giray Izcan

Giray Izcan
  • Basic Members
  • PipPipPipPip
  • 404 posts
  • Cinematographer
  • Los Angeles

Posted 13 April 2018 - 08:53 AM

You have to put marks and pull accordingly or if its a free flow, you can get some reference marks and judge the distance by eye in relations to your mark and also, pulling focus is matching the subjects speed and the numbers should fall in place if you can match your speed to the subject.
  • 0

#4 Sava Silin

Sava Silin
  • Basic Members
  • PipPip
  • 11 posts
  • Director
  • Ukraine

Posted 14 April 2018 - 03:48 AM

You can put a remote focus system on a film camera's lens just like you can on a digital camera's lens.

 

You can put a transmitter on a film camera that has a video tap to send a picture without a cable, or you can run a cable from the video tap to a monitor, etc.  Just be aware that most taps are standard-def, only a few are high-def.

 

Thanks for answer, David. Does focus systems for film cameras differ from the ones for digital cameras? Is it possible to use Arri WCU-4 with Arricam lt?


  • 0

#5 Brian Drysdale

Brian Drysdale
  • Basic Members
  • PipPipPipPip
  • 5305 posts
  • Cinematographer

Posted 14 April 2018 - 06:08 AM

Cine style lenses, with the gears, are the same on film and digital, so follow focus systems will work on both, assuming the cameras will take industry standard mounting rods. 


  • 0

#6 Michael Kubaszak

Michael Kubaszak
  • Basic Members
  • PipPipPip
  • 207 posts
  • 1st Assistant Camera
  • Chicago

Posted 16 April 2018 - 04:04 PM

 

Thanks for answer, David. Does focus systems for film cameras differ from the ones for digital cameras? Is it possible to use Arri WCU-4 with Arricam lt?

 

All Wireless FI+Z systems work regardless of the individual camera. Doesn't matter if it is film or digital. Panavision or Arri, Sony or RED. BUT cables will be different for power and start/stop if it is Panavision compared to ARRI or Moviecam for that matter. But besides that, they are independent of camera body.

 

The WCU-4 will work with any camera if you have the UMC.


Edited by Michael Kubaszak, 16 April 2018 - 04:04 PM.

  • 0

#7 Robin Phillips

Robin Phillips
  • Basic Members
  • PipPip
  • 85 posts
  • Director
  • Los Angeles / San Francisco

Posted 20 April 2018 - 09:44 PM

 

Thanks for answer, David. Does focus systems for film cameras differ from the ones for digital cameras? Is it possible to use Arri WCU-4 with Arricam lt?

you'll need the arri reciever + motors for each part of the lens you want to control as I dont think they made an integrated lens control module on the LT (I could be wrong). The 435 Xtreme has the same style lens control wireless system built in like the Alexa Plus cameras.

If you cant get an HD-IVS, you might want to consider a Ward's Sniper mk3 or similar invisible laser or sonar focus assist if youre worried. 


  • 0

#8 Chris Steel

Chris Steel
  • Basic Members
  • PipPip
  • 51 posts
  • 1st Assistant Camera
  • London

Posted 21 April 2018 - 04:58 AM

you'll need the arri reciever + motors for each part of the lens you want to control as I dont think they made an integrated lens control module on the LT (I could be wrong). The 435 Xtreme has the same style lens control wireless system built in like the Alexa Plus cameras.

 

I know the 416 plus and 435 Xtreme have LCS integration so most arri hand units should talk as long as they're the same "color" radio (white or yellow)

 

The Arricam ST and LT have lens data boxes that have LCS but I can't say how common they are as the ones I've used have all been pretty bare bones. Don't know if they were upgradable to white radio


  • 0


Metropolis Post

Broadcast Solutions Inc

Willys Widgets

Abel Cine

rebotnix Technologies

Aerial Filmworks

Media Blackout - Custom Cables and AKS

Tai Audio

Rig Wheels Passport

CineTape

Wooden Camera

Paralinx LLC

Glidecam

New Pro Video - New and Used Equipment

The Slider

Visual Products

CineLab

Technodolly

Ritter Battery

Gamma Ray Digital Inc

FJS International, LLC

New Pro Video - New and Used Equipment

The Slider

Media Blackout - Custom Cables and AKS

Rig Wheels Passport

Visual Products

Tai Audio

Gamma Ray Digital Inc

Wooden Camera

Willys Widgets

Technodolly

Glidecam

Broadcast Solutions Inc

Paralinx LLC

CineLab

FJS International, LLC

rebotnix Technologies

Aerial Filmworks

Ritter Battery

Metropolis Post

Abel Cine

CineTape