Jump to content


Photo

Shooting Back Projection with DSLR


  • Please log in to reply
2 replies to this topic

#1 Joseph Eckworth

Joseph Eckworth

    New

  • Basic Members
  • Pip
  • 6 posts
  • Student
  • Camberwell, London

Posted 02 September 2012 - 05:14 PM

Hi There,

I have an upcoming music video for a small folky type artist, and the directors idea for which involves back projecting DSLR footage, and using shadow puppetry in a fairly experimental fashion.

When using DSLRs in the past I have found then when you shoot an image from a projector you get something similar to the jello effect in the image, and I was wondering if it is possible to avoid this? Can it be fixed by changing shutter speeds and iso's? or does it depend on the type of projector you use? Or would I have to use a different camera?

Any solutions on this would be hugely appreciated!

Thanks!
  • 0

#2 Ari Davidson

Ari Davidson
  • Basic Members
  • PipPipPip
  • 124 posts
  • Cinematographer

Posted 02 September 2012 - 07:40 PM

Can you post some tests?
  • 0

#3 Nate Opgenorth

Nate Opgenorth
  • Basic Members
  • PipPip
  • 41 posts
  • Camera Operator
  • Syracuse, NY

Posted 22 September 2012 - 11:54 PM

Don't know if your shoot came up already but I find that keeping your pans nice and deliberate is the best way to avoid the "jello effect"...basically the CMOS sensor "creates" each frame from the top to bottom and if you jerk the camera rapidly you will get that jello effect. Really unfortunate but you have to work around it...as for specific shutter speeds...I'm assuming you'll want to shoot at a traditional 180ยบ~ shutter angle. I think the best thing to do would be to grab any of Canon's DSLRs and play around with them...I've learned the most from reading posts from some of the great guys on this forum but with my camera literally right next to me. I learn something new everyday.
  • 0


FJS International, LLC

Willys Widgets

Paralinx LLC

Visual Products

Metropolis Post

CineTape

Ritter Battery

Wooden Camera

Aerial Filmworks

Gamma Ray Digital Inc

CineLab

Media Blackout - Custom Cables and AKS

Technodolly

New Pro Video - New and Used Equipment

Broadcast Solutions Inc

Glidecam

Rig Wheels Passport

rebotnix Technologies

Abel Cine

Tai Audio

The Slider

Rig Wheels Passport

Glidecam

Wooden Camera

The Slider

Willys Widgets

Broadcast Solutions Inc

Aerial Filmworks

Tai Audio

Ritter Battery

FJS International, LLC

Abel Cine

rebotnix Technologies

CineLab

Visual Products

Paralinx LLC

Technodolly

Media Blackout - Custom Cables and AKS

New Pro Video - New and Used Equipment

Metropolis Post

CineTape

Gamma Ray Digital Inc