XDCAM field flicker on digibeta recording?
by Kevin Maguire
on
Oct 16, 2008 at 12:36:25 pm
Hi there,
I've just ETT a 1 hour prog onto a Sony M2000 and there is a field flicker problem on playback.
The original footage came from XDCAM and was interlaced. I frame-rated the sequence by changing the sequence settings from 'field' to 'frame'.
Playing from FCP to my Sony broadcast monitor everything looked framed and flicker-free, but the playback from digi (when jogged) revealed a difference between the two fields (sharp then soft), causing the field flicker.
The easy solution is to put a max deflicker filter over the whole timeline, but I can't understand where the problem is coming from.
Surely if I deinterlace, one set of fields is duplicated, and the digi recorder shouldn't see a difference.
I did a test using a sequence set to fields, and putting the deinterlace filter over the footage, but the result was exactly the same; sharp/soft.
So, is there a known issue with the compression on XDCAM, causing this kind of problem?
Thanks in advance.
========================
FCP 6.0.2
Mac OS 10.5.2
2 x 2.8 Quad core Intel
6 GB RAM
eSATA 3Tb G-Raid
BM Decklink HD Extreme 2
Decklink 6.7.2
Re: XDCAM field flicker on digibeta recording? by Chris Borjis on Oct 16, 2008 at 5:09:21 pm
[Kevin Maguire]"The original footage came from XDCAM and was interlaced. I frame-rated the sequence by changing the sequence settings from 'field' to 'frame'."
why did you frame-rate it and not leave it interlaced?
changing that usually introduces problems down the line later.
Better to just leave interlaced...as interlaced unless your client requires a 24psf deliverable.
if you change it back to fields as it was originally it should be fine.
