Jump to content


Photo

Lighting a party scene in slow motion.

Arri Alexa Party Slow motion handheld natural look flikckr

  • Please log in to reply
3 replies to this topic

#1 Ruslan Bekshenov

Ruslan Bekshenov

    New

  • Basic Members
  • Pip
  • 2 posts
  • Cinematographer
  • UAE

Posted 22 June 2015 - 03:06 AM

Hi guys, i'm going to shoot music video, the big part of it is in House, my camera settings should be 800asa 2.0 f 120 fps with 1/240 shutter speed and 800asa 4.0 f 24 fps with 1/48 shutter, it will be handheld. My question is: Can i pre light it for both settings, so i can just change settings of the camera in the middle of shooting from 120fps to 24fps and back? Flickering for me is fine but not so much.

 

This is the reference for flickr and lighting 

https://www.youtube....h?v=j0DvjgagJko

https://youtu.be/lXYq9ImJIN8?t=1m22s

https://youtu.be/ZXBcwyMUrcU?t=1m24s


Edited by Ruslan Bekshenov, 22 June 2015 - 03:08 AM.

  • 0


#2 David Mullen ASC

David Mullen ASC
  • Sustaining Members
  • 19641 posts
  • Cinematographer
  • Los Angeles

Posted 22 June 2015 - 10:52 AM

You can light for the 240 fps version, but that's about a 2 1/3-stop light loss over 24 fps, so your 24 fps version would be about a 1/3-stop brighter if you just close down from f/2.0 to f/4 to compensate.  You could just live with that, or you could shave a little exposure off of the 24 fps version by closing down to f/4 and 1/3.


  • 1

#3 David Mullen ASC

David Mullen ASC
  • Sustaining Members
  • 19641 posts
  • Cinematographer
  • Los Angeles

Posted 22 June 2015 - 11:00 AM

If you are shooting in 60 Hz power, you should be fine at 120 fps in terms of AC light sources and flicker.  That video had a strobing lamp in the bar, so that wasn't flicker due to the camera.  The LED Christmas Tree lights had a little flicker, which is always a problem with those.


  • 1

#4 Ruslan Bekshenov

Ruslan Bekshenov

    New

  • Basic Members
  • Pip
  • 2 posts
  • Cinematographer
  • UAE

Posted 22 June 2015 - 11:46 AM

Thanks David, i got you, we have here 50 Hz power, so it means i should shoot with 100 fps and 1/200 for example and i will no have a flickr,  can you recommend what kind of lights to use, do i need to go just with practicals or it's better light it with china balls, kino flos, do i need a 5k and 2k's with me? We gonna shoot fast and a lot, so it means less time for lighting, but we will have day to pre light everything. 


  • 0



Also tagged with one or more of these keywords: Arri Alexa, Party, Slow motion, handheld, natural look, flikckr

CineTape

CineLab

Technodolly

Visual Products

Tai Audio

The Slider

Broadcast Solutions Inc

Willys Widgets

FJS International, LLC

Aerial Filmworks

Glidecam

Ritter Battery

Paralinx LLC

Wooden Camera

Rig Wheels Passport

Metropolis Post

Gamma Ray Digital Inc

Media Blackout - Custom Cables and AKS

Abel Cine

rebotnix Technologies

Paralinx LLC

CineLab

Aerial Filmworks

Gamma Ray Digital Inc

Visual Products

rebotnix Technologies

Media Blackout - Custom Cables and AKS

Broadcast Solutions Inc

Ritter Battery

FJS International, LLC

Willys Widgets

Abel Cine

Rig Wheels Passport

Glidecam

Wooden Camera

The Slider

Metropolis Post

Tai Audio

Technodolly

CineTape