Accidentally shot 60i and 50i for a 50i project

John Hewat · March 12th, 2008, 05:24 PM

So last week I had to shoot a 60i project on the Z1 for NTSC output and stupidly forgot to change it back to 50i.

Yesterday I shot a play with a Z1, V1 and a PD150. The V1 and the PD150 were both shooting DV at 50Hz but the Z1 was shooting DV at 60Hz.

So I'm nervous that when I put it all in the timeline that sync will be an issue because the Z1 footage has five extra frames per second.

I assume that when I place the 60i footage in the 50i timeline, the clip will need rendering in order to play properly and that either of the following will happen:

1. The render will "squash" the 30 frames (pairs of fileds, I know) down to 25.
2. The clip that goes for an hour may actually go for an hour and then some.

Which will it be? If it's 1, then presumably sync with the clips from the V1 and the PD150 will be fine. If it's 2, then I'm in trouble, right?

I've never made this mistake before so don't know what to anticipate.

Colin Pearce · March 12th, 2008, 06:38 PM

It will be (1).

Premiere is smart enough to deal with it. However I think you will find the motion will be smoother if you create a new 60i project and export using Adobe Media Encoder to make it 50i. Try it ans see what the final output looks like.

I had a project that I purposely shot 50i and 60i, so that some footage had a slightly different look.

BTW, were you shooting HDV or SD? If shot in SD you have much less resolution (480 lines v 576). Again I'd use the Adobe Media Encoder to convert before bringing it into the real project.

John Hewat · March 14th, 2008, 07:54 PM

Quote:

Originally Posted by Colin Pearce

It will be (1).

Awesome!

Quote:

BTW, were you shooting HDV or SD?

SD.

Quote:

If shot in SD you have much less resolution (480 lines v 576).

Bugger - you're right!

Quote:

Again I'd use the Adobe Media Encoder to convert before bringing it into the real project.

Could you advise me on this? I hate using that encoder and rarely get successful results.

What settings do I need to use to get successful NTSC SD to PAL SD?

March 12th, 2008, 05:24 PM	#1
John Hewat Major Player Join Date: Dec 2005 Location: Melbourne, AUSTRALIA Posts: 735	Accidentally shot 60i and 50i for a 50i project - will it be ok? So last week I had to shoot a 60i project on the Z1 for NTSC output and stupidly forgot to change it back to 50i. Yesterday I shot a play with a Z1, V1 and a PD150. The V1 and the PD150 were both shooting DV at 50Hz but the Z1 was shooting DV at 60Hz. So I'm nervous that when I put it all in the timeline that sync will be an issue because the Z1 footage has five extra frames per second. I assume that when I place the 60i footage in the 50i timeline, the clip will need rendering in order to play properly and that either of the following will happen: 1. The render will "squash" the 30 frames (pairs of fileds, I know) down to 25. 2. The clip that goes for an hour may actually go for an hour and then some. Which will it be? If it's 1, then presumably sync with the clips from the V1 and the PD150 will be fine. If it's 2, then I'm in trouble, right? I've never made this mistake before so don't know what to anticipate. __________________ John Hewat Mammoth Media Productions

March 12th, 2008, 06:38 PM	#2
Colin Pearce Regular Crew Join Date: Dec 2004 Location: Brisbane, Australia Posts: 99	It will be (1). Premiere is smart enough to deal with it. However I think you will find the motion will be smoother if you create a new 60i project and export using Adobe Media Encoder to make it 50i. Try it ans see what the final output looks like. I had a project that I purposely shot 50i and 60i, so that some footage had a slightly different look. BTW, were you shooting HDV or SD? If shot in SD you have much less resolution (480 lines v 576). Again I'd use the Adobe Media Encoder to convert before bringing it into the real project.