24p and 3D? at DVinfo.net

Aric Mannion · February 11th, 2009, 09:53 AM

Has anyone used 24p for stereoscopic 3D? Does it work better or worse than 30p?

Alister Chapman · February 12th, 2009, 01:34 AM

I use 25P and it works fine for me. The only difference would be in motion which would be smoother at at 30P. All movies are done at 24P.

Tim Dashwood · February 12th, 2009, 04:45 PM

I shoot 24P S3D all the time. Genlock is even more essential though at lower frame rates.

Aric Mannion · February 17th, 2009, 10:05 AM

I asked because I read an article that said a higher framerate probably works better because "James Cameron found 48 (or so) to his liking." But RealD is 48 only because it flickers back and fourth, alternating the two 24p (or so) videos. So this guy must have just been assuming that a higher framerate provides better 3D??

Tim Dashwood · February 17th, 2009, 05:21 PM

Real-D is still 24fps (it would look like film if it wasn't) but each frame or each eye is alternately flashed 3 times, meaning 72Hz for each eye, 144Hz total.

February 11th, 2009, 09:53 AM	#1
Aric Mannion Major Player Join Date: Apr 2006 Location: Boston, Massachusetts Posts: 616	24p and 3D? Has anyone used 24p for stereoscopic 3D? Does it work better or worse than 30p?

February 12th, 2009, 01:34 AM	#2
Alister Chapman Inner Circle Join Date: Dec 2005 Location: Bracknell, Berkshire, UK Posts: 4,957	I use 25P and it works fine for me. The only difference would be in motion which would be smoother at at 30P. All movies are done at 24P. __________________ Alister Chapman, Film-Maker/Stormchaser http://www.xdcam-user.com/alisters-blog/ My XDCAM site and blog. http://www.hurricane-rig.com

February 12th, 2009, 04:45 PM	#3
Tim Dashwood Wrangler Join Date: Aug 2005 Location: Toronto, ON, Canada Posts: 3,637	I shoot 24P S3D all the time. Genlock is even more essential though at lower frame rates. __________________ Tim Dashwood

February 17th, 2009, 05:21 PM	#5
Tim Dashwood Wrangler Join Date: Aug 2005 Location: Toronto, ON, Canada Posts: 3,637	Real-D is still 24fps (it would look like film if it wasn't) but each frame or each eye is alternately flashed 3 times, meaning 72Hz for each eye, 144Hz total. __________________ Tim Dashwood

February 17th, 2009, 10:05 AM	#4
Aric Mannion Major Player Join Date: Apr 2006 Location: Boston, Massachusetts Posts: 616	I asked because I read an article that said a higher framerate probably works better because "James Cameron found 48 (or so) to his liking." But RealD is 48 only because it flickers back and fourth, alternating the two 24p (or so) videos. So this guy must have just been assuming that a higher framerate provides better 3D??