Which color bars at DVinfo.net

Mark Williams · June 8th, 2004, 12:25 PM

Which color bar signal do you use to set up your monitor. A direct feed from the camera or from your NLE system. I just noticed for the first time that both signals yeild different results although both are set up to IRE 7.5. Anyone have any ideas? Oh, and the NLE feed to the monitor is via s-VHS cable and feed from cam is via RCA connector.

Regards,

Mark

Matrox RT2500
Premiere 6.5
DVC30 and GL-1

Mike Rehmus · June 9th, 2004, 10:24 AM

I'd feed it from the system that will normally be used with it . . . the NLE since that's how you will be judging the output when you are editing.

If you have a waveform and vectorscope display in your NLE, look at both sets of bars and see what the measured difference really is.

Mark Williams · June 9th, 2004, 11:12 AM

Thanks Mike. I will use the signal from the NLE. Unfortunately I don't have access to vectorscope but do have the waveform.

Regards,

Mark

Michael Ray · June 12th, 2004, 07:42 AM

I usually record color bars from my camera on to the head of each tape for several reasons, and capture some of the color bars into the NLE when starting a project. I then use those color bars to calibrate my monitors. I've found that sometimes the color bars from NLE are a littl different than the ones from my camera. but using the captured version through the NLE allows me to properly set up and calibrate the NLE chain. that being said. some cameras use only full field colorbars and aren't as usefull as a set of sempte bars that have the pluge bars in the bottom right corner. these really help in setting up the brightness and contrast of a monitor and what i see miss set most often

June 8th, 2004, 12:25 PM	#1
Mark Williams Trustee Join Date: Dec 2002 Location: Deep South, U.S. Posts: 1,526	Which color bars Which color bar signal do you use to set up your monitor. A direct feed from the camera or from your NLE system. I just noticed for the first time that both signals yeild different results although both are set up to IRE 7.5. Anyone have any ideas? Oh, and the NLE feed to the monitor is via s-VHS cable and feed from cam is via RCA connector. Regards, Mark Matrox RT2500 Premiere 6.5 DVC30 and GL-1

June 9th, 2004, 10:24 AM	#2
Mike Rehmus Wrangler Join Date: May 2002 Location: Vallejo, California Posts: 4,049	I'd feed it from the system that will normally be used with it . . . the NLE since that's how you will be judging the output when you are editing. If you have a waveform and vectorscope display in your NLE, look at both sets of bars and see what the measured difference really is. __________________ Mike Rehmus Hey, I can see the carrot at the end of the tunnel!

June 12th, 2004, 07:42 AM	#4
Michael Ray New Boot Join Date: Jun 2004 Location: Houston Texas Posts: 11	color bars I usually record color bars from my camera on to the head of each tape for several reasons, and capture some of the color bars into the NLE when starting a project. I then use those color bars to calibrate my monitors. I've found that sometimes the color bars from NLE are a littl different than the ones from my camera. but using the captured version through the NLE allows me to properly set up and calibrate the NLE chain. that being said. some cameras use only full field colorbars and aren't as usefull as a set of sempte bars that have the pluge bars in the bottom right corner. these really help in setting up the brightness and contrast of a monitor and what i see miss set most often

June 9th, 2004, 11:12 AM	#3
Mark Williams Trustee Join Date: Dec 2002 Location: Deep South, U.S. Posts: 1,526	Thanks Mike. I will use the signal from the NLE. Unfortunately I don't have access to vectorscope but do have the waveform. Regards, Mark