Wes Kato
March 2nd, 2005, 05:40 PM
Hello, is it possible to get different frames rates (like 12P or 15P) other than 24P, 30P and 60i with the DVX100? Or is this a new feature exclusive to the 100A?
If anyone could explain a bit, I'd greatly appreciate it!
-Thank you
Preston Herrick
March 2nd, 2005, 07:36 PM
Neither of the camera models offer inherit 12 or 15p frame rates. However you can achieve 12p in post by setting your shutter speed to 1/24 sec. and shooting in 24p - then speed up the footage twice as fast (200% in a 24p timeline).
For 15p, you set the shutter speed to 1/30 sec., shoot in 30p, and speed the footage up to 160%
Wes Kato
March 2nd, 2005, 08:12 PM
Thanks for the quick reply Preston. I have a DVX100 and suspected it wasn't possible.
I was actually more interested in shooting in something higher than 30P for a really nice fluid slow-motion effect when played back at 24P.
-Wes
Preston Herrick
March 2nd, 2005, 09:08 PM
Slo-mo? I wondered if that's what you meant.
For super smooth: Shoot 30p, playback at 80%. This will give you a 25% reduction in speed - not dramatic but smooth.
For slower: Shoot 60i @ 120th/sec shutter, slow to 40% in 24p timeline. Also requires deinterlacing (or making full frame out of each field). This will result in softer images.
Or: 60i slowed 50% in a 60i timeline.
Any other percentage of slowdown in timeline will result in jittery (non-smooth) motion.
Wes Kato
March 2nd, 2005, 10:43 PM
I'll do some experiments later on and give it a try. The "jittery" slo-mo look you described is exactly what got me on this kick.
I wonder if the XL2 has more frame-rate options than the DVX? In the director's commentary for "28 Days Later" they mentioned that fast, "stutter" effect was created naturally by adjusting the frame-rate (or shutter speed?) on the XL1 to an insane rate. It didn't sound like something they did in post, but I may have mis-heard. Just a bit curious.
Thanks again.
Peter Jefferson
March 3rd, 2005, 09:39 AM
err. no..
the XL2 does not have any different frame rates to the DVX
although with teh coming of DVCproHD, im hoping that a faster frame rate will be possible this way we can get TRUE slowmo as opposed to electronically processed slowmo.
You havent mentioned what aplication youre using... if usuing Vegas5, u can easily go down to 10% with super mooth motion using the video supersampling envelope
It will also do the deinterlacing for you : )
Stefan Scherperel
March 7th, 2005, 01:50 AM
Wes
Frame rate and shutter speed are two totally unrelated things. Both can be changed independently of the other.