Dark Bars from PD 150? at DVinfo.net

Perry Mack · January 26th, 2003, 06:59 PM

Guys,
I noticed that when I play back my footage shot today from a mini DV tape onto my television set,I get these dim or dark bars going across the screen,somewhat reminiscent of color bars(but not
with any color-to reempasize again,these bars are dark).It looks like there is about four in all,and they faintly show up in the background;what are these bars?
Wasn't shooting a critical assignment,just practicing with the camera,so fortunately no harm done.However,it does concern me for future work;is this a result of not white balancing,etc,etc. Thanks...

Wayne Orr · January 26th, 2003, 09:28 PM

Do you know what f-stop you were shooting at? There are some weird aberrations that show up if you are shooting at f-11, or near it. (did you know the camera will shoot at f-16 in auto mode? Don't do it) Always pay attention to the ND messages from the camera, and try to avoid anything above f-6.8. Failing that, is it possible you need to clean your heads?

Mike Rehmus · January 27th, 2003, 10:55 AM

Are these vertical or horizontal bars?

Have you tried another television set or monitor?

Do the bars show up in the viewfinder or LCD?

January 26th, 2003, 06:59 PM	#1
Perry Mack New Boot Join Date: Nov 2002 Posts: 14	Dark Bars from PD 150? Guys, I noticed that when I play back my footage shot today from a mini DV tape onto my television set,I get these dim or dark bars going across the screen,somewhat reminiscent of color bars(but not with any color-to reempasize again,these bars are dark).It looks like there is about four in all,and they faintly show up in the background;what are these bars? Wasn't shooting a critical assignment,just practicing with the camera,so fortunately no harm done.However,it does concern me for future work;is this a result of not white balancing,etc,etc. Thanks...

January 27th, 2003, 10:55 AM	#3
Mike Rehmus Wrangler Join Date: May 2002 Location: Vallejo, California Posts: 4,049	Are these vertical or horizontal bars? Have you tried another television set or monitor? Do the bars show up in the viewfinder or LCD? __________________ Mike Rehmus Hey, I can see the carrot at the end of the tunnel!

January 26th, 2003, 09:28 PM	#2
Wayne Orr Major Player Join Date: Dec 2002 Location: Northridge Ca Posts: 734	Do you know what f-stop you were shooting at? There are some weird aberrations that show up if you are shooting at f-11, or near it. (did you know the camera will shoot at f-16 in auto mode? Don't do it) Always pay attention to the ND messages from the camera, and try to avoid anything above f-6.8. Failing that, is it possible you need to clean your heads?