-
Uncompressed 10bit or 8bit NTSC field dominance
Hello from a PAL person.
Are using the Uncompressed 8bit or 10bit NTSC presets, should the field dominace be Upper or Lower?
(In PAL, they are Upper, and all the DV codecs are Lower)Thanks.
-
6 Replies
-
Hi,
I’m almost 100% sure that NTSC is lower field first.Regards,
Steve -
Hi,
NTSC is lower field both for DV and uncompressed. You can read more about the field differences of NTSC vs PAL in the support note DV clips in PAL format look weird.
Regards,
Luke Maslen
Blackmagic Design -
Thanks.
(I’m cutting some NTSC stuff and I happily called up FCP’s NTSC sequence preset and noticed it was Lower field for 10- and 8bit; the opposite of PAL sequences.
Just wanted to be sure the BlackMagic presets were correct.
something to do with my ‘Never Assume’ policy ..) -
Hi,
You are a wise person 🙂
Regards,
Luke Maslen
Blackmagic Design -
Hi luke,
Its seems that the PAL are like a kind of “seccond class people. Our PAL DV is “less broadcast” (about the Chroma Sampling method) than the NTSC-DVCPro. And we’ve got the issue of the fields order.
I learnt the PAL and the NTSC more than twenty years ago (thanks God they didn’t change), and I can understand the reasons of what I call “less broadcast” (That doesn’t mean worst).
But for the matter of the difference in the field order in some PAL codecs, I can not find any technicall reason. Its sounds, for me, just like a trick of the manufacturers to make difficult the use of DV for more proffesional purposes.
Do you know where I can any information about?
Thanks,
rafael -
Hi Rafael,
I believe that the people who made the PAL DV standard simply made a mistake when they set the field order the opposite way to all other PAL video. I haven’t found this documented anywhere and I don’t think it was deliberate. Mistakes happen and I think this was one of them and it just happens to be a very painful one.
Regards,
Luke Maslen
Blackmagic Design
Reply to this Discussion! Login or Sign Up