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DVCPRO50 30p output trouble
I’m having trouble with a DVCPRO50 30p project. The footage was shot on an HVX. The clips and the timeline are all set to a field dominance of “none” but the Kona LHe output via SDI is badly aliased. In the Kona control panel there only 525i options (nothing for 525p). Is this normal? The canvas and the viewer both display great looking video. How can I get the Kona to ouput the same? I’m viewing the output on a BT-LH1700W. I am running an older version of FCP and Kona driver. Is that a problem?
Thanks!
FCP 5.1.4 on OSX 10.4.11. 2.66 Mac Pro, 8 gigs of RAM, Kona Lhe card. Kona driver 3.4.
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15 Replies
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Jason,
As I said on the FCP forum, I have run your footage through the AJA ioHD and a Kona and it looks like progressive video to me (actually it’s psf video to be technical).
As long as your field dominance matches your seq. field dominance, you should be fine.
Also, remember you are playing back SD footage on an HD monitor. That could account for some image degradation as well.
Jeremy
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Just a thought, turn your rt playback to ‘High’ in your sequence from the rt drop down menu.
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[Jeremy Garchow] “As long as your field dominance matches your seq. field dominance, you should be fine.”
I should be fine, but instead I’m horrified the aliasing I am seeing. I haven’t seen anything similar in all the 720p 24 stuff that I have shot. The odd thing is that the output remains the same from the Kona (aliased) no matter what my field dominance settings are. The only thing that changes is the quality in the viewer and canvas.
[Jeremy Garchow] “Also, remember you are playing back SD footage on an HD monitor. That could account for some image degradation as well.”
The Panny monitors do a great job, IMO, of display both SD and HD and I have a good grasp of what it should look like.
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Just tried… no difference. Thanks so much for your help, BTW!
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The only way I can get the footage to alias is to turn my rt settings to medium. I have played it out on an SD monitor and an HD monitor using both the ioHD and a Kona3 (with version 6 drivers and FCS2, which is different from your setup).
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What is your video format setting in the Kona Control Panel?
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525i29.97.
I selected the AJA kona 8 bit to dv50 easy setup, and made a new sequence. I changed the clips field order to ‘none’ and droppped it in the timeline, then with the timeline selected, I hit command-0 to bring up the seq. settings and changed the field dom to ‘none’ there as well.
Jeremy
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[Jeremy Garchow] “The only way I can get the footage to alias is to turn my rt settings to medium.”
The aliasing does get worse when I go to the “medium” setting, but “high” doesn’t make it go away.
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[Jason Jenkins] “The Panny monitors do a great job, IMO, of display both SD and HD and I have a good grasp of what it should look like.
“
Not on the Panasonic monitors that we have – BT-LH1700W and BT-LH2600W.SD video looks really degraded on these monitors but plays just fine on an SD monitor… So… You might want to check your signal on an SD monitor and see what it looks like.
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Wayne Carey
Schazam Productions
https://web.mac.com/schazamproductions
schazamproductions@mac.com -
I checked it out on a CRT and it looks the same. I’ve spent many hours in front of both the BT-LH1700W and the BT-LH2600W with SD material and I’ve never had a reason to be dissatisfied with them. They are easier on my eyes than a CRT as well.
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