HVX slomo blues at DVinfo.net

Steve Madsen · March 9th, 2008, 01:33 AM

Hi all,

I shot a 50p clip with the intention of overcranking. The problem I'm having with the footage is that I didn't shoot it in 25pn, so it's not automatically playing those 50 frames over 2 seconds. When I put the clip on a 25p timeline and set a velocity envelope to 50%, every 2nd frame is duplicated. That confused me, so I changed the timeline to 50p - again every 2nd frame was a duplicate. I converted to avi with cineform to bring into Vegas.

Any thoughts on what I'm doing wrong and if there's a solution?

David Newman · March 9th, 2008, 10:46 AM

It is acting like you don't have 50p source. If you are sure you have 50p sources, you convert again in HDLink and set the frame rate change to "-50%" -- the control is listed as "60p to 30p", but that will also convert 50p to 25p.

Steve Madsen · March 11th, 2008, 05:32 PM

Thanks David.

Yep, definately a 50p clip (properties everywhere confirm this). I tried your trick, same stuttery result. Very confusing. If it was a 25 frame clip, I would have expected Vegas to have combined frames to make the in between frame (technical jargon :)), instead its displaying a duplicate frame. Oh well, look like I'll have to move on.

March 9th, 2008, 01:33 AM	#1
Steve Madsen Regular Crew Join Date: Jun 2005 Location: Brisbane, Australia Posts: 111	HVX slomo blues Hi all, I shot a 50p clip with the intention of overcranking. The problem I'm having with the footage is that I didn't shoot it in 25pn, so it's not automatically playing those 50 frames over 2 seconds. When I put the clip on a 25p timeline and set a velocity envelope to 50%, every 2nd frame is duplicated. That confused me, so I changed the timeline to 50p - again every 2nd frame was a duplicate. I converted to avi with cineform to bring into Vegas. Any thoughts on what I'm doing wrong and if there's a solution?

March 9th, 2008, 10:46 AM	#2
David Newman CTO, CineForm Inc. Join Date: Jul 2003 Location: Cardiff-by-the-Sea, California Posts: 8,095	It is acting like you don't have 50p source. If you are sure you have 50p sources, you convert again in HDLink and set the frame rate change to "-50%" -- the control is listed as "60p to 30p", but that will also convert 50p to 25p. __________________ David Newman -- web: www.gopro.com blog: cineform.blogspot.com -- twitter: twitter.com/David_Newman

March 11th, 2008, 05:32 PM	#3
Steve Madsen Regular Crew Join Date: Jun 2005 Location: Brisbane, Australia Posts: 111	Thanks David. Yep, definately a 50p clip (properties everywhere confirm this). I tried your trick, same stuttery result. Very confusing. If it was a 25 frame clip, I would have expected Vegas to have combined frames to make the in between frame (technical jargon :)), instead its displaying a duplicate frame. Oh well, look like I'll have to move on.