Jump to content


Photo

Creating Infinite Depth


  • Please log in to reply
5 replies to this topic

#1 Bill DiPietra

Bill DiPietra
  • Sustaining Members
  • 2339 posts
  • Cinematographer
  • New York City

Posted 05 September 2014 - 11:45 AM

For an upcoming short I will have a shot of the actors standing before a black background.  I was wondering which material would be best to use - muslin or velvet?  I've never used either but I'm guessing the black velvet would do a better job of absorbing the light.

 

Thanks for any help.


  • 0

#2 John E Clark

John E Clark
  • Basic Members
  • PipPipPipPip
  • 844 posts
  • Other
  • San Diego

Posted 05 September 2014 - 12:04 PM

For some small product shots I've used velvet, and I think it is a 'deeper' black than what could be gotten with muslin, as the muslin has the thread structure, and could have some residual 'glint' from the lights.

 

For people, I have used black bedsheet material, due to its cheapness, and placed the background 'distant' from the subjects, so as to create the empty black background.

 

The problem there is to get the distance one needs more material... as well as a studio that has the depth...


Edited by John E Clark, 05 September 2014 - 12:05 PM.

  • 0

#3 Gregg MacPherson

Gregg MacPherson
  • Basic Members
  • PipPipPipPip
  • 1830 posts
  • Other
  • New Zealand

Posted 05 September 2014 - 06:49 PM

 

For an upcoming short I will have a shot of the actors standing before a black background.  I was wondering which material would be best to use - muslin or velvet?  I've never used either but I'm guessing the black velvet would do a better job of absorbing the light.
 
Thanks for any help.


Hey Bill,
Grab your Kelly wheel and think about the likely depth of field. The widest shot with the most DoF.
  • 0

#4 Gregg MacPherson

Gregg MacPherson
  • Basic Members
  • PipPipPipPip
  • 1830 posts
  • Other
  • New Zealand

Posted 05 September 2014 - 06:57 PM

The editor always times out on me, I meant to add.

Is the intention that the fabric be basically invisible. So out of focus? Grab your Kelly wheel and think about the likely depth of field. The widest shot with the most DoF. And closeups not staged too close to the fabric.
  • 0

#5 Satsuki Murashige

Satsuki Murashige
  • Sustaining Members
  • 3510 posts
  • Cinematographer
  • San Francisco, CA

Posted 06 September 2014 - 12:01 AM

As long as you can get the background back far enough to fall off in focus and not be lit by spill from your key, you can get away with a lot; the background does not have to be perfectly black since the fall off is helping you out. The trick is that the further away you place your background, the larger it needs to be to not see off the edges.

So as long as you have the space, you're better off with a large, imperfect background material versus a smaller black velvet background. You can check theatrical prop shops and see if you that have black backdrops you can rent. Also, a 20x20' solid rag would work. Clip it up to a speedrail goalpost and you're set. Definitely have a few 4x4' floppies on standby to flag any spill onto the background.
  • 0

#6 Bill DiPietra

Bill DiPietra
  • Sustaining Members
  • 2339 posts
  • Cinematographer
  • New York City

Posted 06 September 2014 - 12:40 PM

As long as you can get the background back far enough to fall off in focus and not be lit by spill from your key, you can get away with a lot; the background does not have to be perfectly black since the fall off is helping you out. The trick is that the further away you place your background, the larger it needs to be to not see off the edges.

So as long as you have the space, you're better off with a large, imperfect background material versus a smaller black velvet background. You can check theatrical prop shops and see if you that have black backdrops you can rent. Also, a 20x20' solid rag would work. Clip it up to a speedrail goalpost and you're set. Definitely have a few 4x4' floppies on standby to flag any spill onto the background.

 

Yeah, I was planning on a large cloth for exactly those reasons.  I'll probably wind up purchasing a background stand to add to my inventory since I'm also looking to start renting my grip & lighting equipment out.

 

Thanks, everyone.


  • 0


Tai Audio

Gamma Ray Digital Inc

Aerial Filmworks

FJS International, LLC

Technodolly

Metropolis Post

Media Blackout - Custom Cables and AKS

The Slider

Ritter Battery

CineLab

rebotnix Technologies

Paralinx LLC

CineTape

Broadcast Solutions Inc

Wooden Camera

Glidecam

Willys Widgets

Rig Wheels Passport

Visual Products

Abel Cine

CineLab

Technodolly

Media Blackout - Custom Cables and AKS

rebotnix Technologies

Ritter Battery

Rig Wheels Passport

Gamma Ray Digital Inc

Metropolis Post

Aerial Filmworks

Paralinx LLC

Willys Widgets

Visual Products

Tai Audio

FJS International, LLC

Broadcast Solutions Inc

Glidecam

Abel Cine

CineTape

Wooden Camera

The Slider