Jump to content


Photo

3-D and Sports...


  • Please log in to reply
1 reply to this topic

#1 Cesar Rubio

Cesar Rubio
  • Basic Members
  • PipPipPipPip
  • 263 posts
  • Digital Image Technician
  • Mexico/Wisconsin

Posted 02 October 2011 - 07:58 PM

Does 3-D works for sports coverage?

Yes if only wide angle shots were used, but since it's impractical to cover a whole event like that and close-up shots are a must, then in my opinion it doesn't.

Why do I say that, because 3-D to work correctly is governed by the Stereo Base 1/30 Rule. You can find out more about that here:

http://www.cinematog...showtopic=53425

Telephoto lenses for 3-D work have these drawbacks:

1-You have to use a large Stereo Base (or Inter Axial) to have a proper 3-D effect, and that is based on the 1/30 Rule.
Example, when shooting a person lets say 35 mts. away from the camera (based on a soccer game and the camera placed just outside of the field in a 64 meters X 100 meters FIFA specifications game).
Then the cameras Stereo Base would need to be 1.16 mts. (35/30).

2-When zooming in and out, the Stereo Base must be adjusted accordingly. Yo would need a different Stereo Base for a person 5 mts. or 35 mts. away from your camera.

3-Working with such large Stereo Bases causes a Hyper Stereo effect, and people and objects look like miniatures.

4-Telephoto lenses flatten the images or compact the background with the foreground, in 3-D that looks terrible and the 3-D effect is lost.

5-Working with telephoto lenses people and objects appear to be a “Cardboard Cut Out” effect in 3-D.



Recently James Cameron and Vince Pace said (at IBC 2011) that with their 3-D technology, only a regular 2-D camera operator would be needed for 2-D and 3-D (the 3-D cameras are on top of the 2-D camera) and he (or she) didn't have to worry about the 3-D part since their 3-D system would take care of that automatically. My question is, such 3-D system would comply with point #1 and #2 that I already mentioned?

Also Panasonic was granted the rights to shoot 3-D at the Olympic Games of 2012, as far as I know they only have 3-D cameras with fixed lenses, how are they going to do it right?

Are they aware of those 3-D limitations for sports coverage? I think they are. But it is perhaps the urge to “cash out” the current 3-D craze blinding them?

People aren't stupid, and sooner or later they will learn to differentiate a good 3-D than a crappy one...

I hope that such “pioneers of digital 3-D” don't mess up 3-D again just for greed (it would be the third time in history).

Cesar Rubio.
  • 0

#2 Chris Millar

Chris Millar
  • Basic Members
  • PipPipPipPip
  • 1642 posts
  • Other

Posted 16 January 2012 - 10:35 PM

Another one of these twilight zone threads...
  • 0


Gamma Ray Digital Inc

Tai Audio

Ritter Battery

CineLab

Paralinx LLC

Aerial Filmworks

Technodolly

Willys Widgets

The Slider

Metropolis Post

CineTape

rebotnix Technologies

Visual Products

Media Blackout - Custom Cables and AKS

Wooden Camera

FJS International, LLC

Abel Cine

Rig Wheels Passport

Opal

Glidecam

Broadcast Solutions Inc

Visual Products

Opal

FJS International, LLC

Glidecam

CineTape

Media Blackout - Custom Cables and AKS

Technodolly

The Slider

Gamma Ray Digital Inc

Broadcast Solutions Inc

Metropolis Post

Paralinx LLC

Rig Wheels Passport

CineLab

Ritter Battery

Willys Widgets

Aerial Filmworks

Tai Audio

rebotnix Technologies

Wooden Camera

Abel Cine