Jump to content


Photo

7D Motion Blur


  • Please log in to reply
4 replies to this topic

#1 Peter Borrud

Peter Borrud

    New

  • Basic Members
  • Pip
  • 5 posts
  • Cinematographer

Posted 31 December 2009 - 09:51 PM

I've had a 7D for a little over a month now and I'm wondering, does anyone else notice a kind of odd motion blur that doesn't look like a film or HD camera does? I know it has a rolling shutter and gets jello-y when panned to fast, but I'm wondering why the motion blur at 1/50 seems blurrier than shooting on a normal HD camera at 1/50?

I've seen a lot of things online, and the handheld shots look the most pronounced and particularly when its a closeup of a person. These are all at 1/50th and 24p that I'm referring to. Does anyone have a good idea how to minimize the motion blur? Is there maybe something you could do in After FX to change the motion slightly? Or should I just try to raise the shutter speed more?
  • 0

#2 K Borowski

K Borowski
  • Basic Members
  • PipPipPipPip
  • 3905 posts
  • Camera Operator
  • I.A.T.S.E. Local # 600 Eastern Region

Posted 31 December 2009 - 09:58 PM

Focal plane shutter vs cine shutter, I am guessing?
  • 0

#3 ryan knight

ryan knight
  • Basic Members
  • PipPipPip
  • 115 posts
  • Cinematographer

Posted 23 January 2010 - 05:04 PM

I've had a 7D for a little over a month now and I'm wondering, does anyone else notice a kind of odd motion blur that doesn't look like a film or HD camera does? I know it has a rolling shutter and gets jello-y when panned to fast, but I'm wondering why the motion blur at 1/50 seems blurrier than shooting on a normal HD camera at 1/50?

I've seen a lot of things online, and the handheld shots look the most pronounced and particularly when its a closeup of a person. These are all at 1/50th and 24p that I'm referring to. Does anyone have a good idea how to minimize the motion blur? Is there maybe something you could do in After FX to change the motion slightly? Or should I just try to raise the shutter speed more?


i completely agree. i'm thinking of buying a 7D but am not sold yet on it's 24P efforts. i wonder if closing the shutter to 1/60th may help.
  • 0

#4 John Sprung

John Sprung
  • Sustaining Members
  • 4635 posts
  • Other

Posted 23 January 2010 - 10:32 PM

Shoot some tests of uniform fairly rapid motion and single frame through the parts that seem strange. Upload the interesting stuff here if you find any.




-- J.S.
  • 0

#5 Satsuki Murashige

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

Posted 24 January 2010 - 08:53 PM

i completely agree. i'm thinking of buying a 7D but am not sold yet on it's 24P efforts. i wonder if closing the shutter to 1/60th may help.

I've noticed this too. 1/60 does help.
  • 0


CineTape

Willys Widgets

Media Blackout - Custom Cables and AKS

Paralinx LLC

Rig Wheels Passport

Opal

The Slider

Technodolly

Glidecam

FJS International, LLC

Metropolis Post

rebotnix Technologies

Aerial Filmworks

CineLab

Gamma Ray Digital Inc

Broadcast Solutions Inc

Abel Cine

Visual Products

Wooden Camera

Ritter Battery

Tai Audio

Metropolis Post

CineTape

Abel Cine

Gamma Ray Digital Inc

Glidecam

Visual Products

Opal

Willys Widgets

Media Blackout - Custom Cables and AKS

Broadcast Solutions Inc

Ritter Battery

Rig Wheels Passport

The Slider

rebotnix Technologies

Wooden Camera

Aerial Filmworks

CineLab

FJS International, LLC

Tai Audio

Paralinx LLC

Technodolly