Evil DVX at DVinfo.net

Go Back   DV Info Net > The Tools of DV and HD Production > All Things Audio

All Things Audio
Everything Audio, from acquisition to postproduction.


Reply
 
Thread Tools Search this Thread
Old April 30th, 2008, 10:28 PM   #1
Inner Circle
 
Join Date: Jul 2002
Location: Albany, NY 12210
Posts: 2,650
Evil DVX

Anybody ever encountered a problem like this? I know that Panasonic camcorders like the DVX and HVX are cursed with unreliable gain controls, but crimany, I just finished a shoot with a DVX100b that was just terrible. Gain settings would shift as much as 10dB, mostly down fortunately, but not always. These cameras usually need to warm up, but this one could never be counted on to hold a setting all day long.
Marco Leavitt is offline   Reply With Quote
Old May 1st, 2008, 10:01 AM   #2
Regular Crew
 
Join Date: May 2007
Location: Pasadena, CA
Posts: 152
Never heard of this! Did you put gaffer tape over the gain pots so the camera operator wouldn't move them?
Brooks Harrington is offline   Reply With Quote
Old May 1st, 2008, 11:46 AM   #3
Inner Circle
 
Join Date: Jul 2002
Location: Albany, NY 12210
Posts: 2,650
It has nothing to do with the gain knobs. This is some kind of internal problem with the DVX and HVX cameras. The HVX is usually worse.
Marco Leavitt is offline   Reply With Quote
Old May 1st, 2008, 12:37 PM   #4
Regular Crew
 
Join Date: Feb 2007
Location: Toronto, ON
Posts: 186
I've never really found this an issue with the HVX's.. I find the ones I've worked on pretty solid.

I worked on a DVX100a a few weeks ago and when I put tone through, it took about about 2 minutes for tone to reach its proper level with AGC and all that stuff off. That drove me nuts, but at the same time I was doing double system. No worries!
Jeffery Magat is offline   Reply With Quote
Old May 1st, 2008, 06:19 PM   #5
Inner Circle
 
Join Date: Jul 2002
Location: Albany, NY 12210
Posts: 2,650
I've only encountered the problem with the HVX when recording to MiniDV tapes. It's odd.
Marco Leavitt is offline   Reply With Quote
Old May 1st, 2008, 08:04 PM   #6
Regular Crew
 
Join Date: May 2007
Location: Pasadena, CA
Posts: 152
Yes, but did you put gaffer tape over the gain posts so the cam op doesn't move them???
And how much level variation are you discovering between 20 seconds and 2 minutes?
Brooks Harrington is offline   Reply With Quote
Old May 1st, 2008, 08:39 PM   #7
Inner Circle
 
Join Date: Jul 2002
Location: Albany, NY 12210
Posts: 2,650
In this instance, no, I didn't put tape on the controls. I have experienced the same problem on other cameras that I have taped the controls on though. In this case I sent tone to the camera (after making sure the limiter was turned off), and you could see the levels shifting around by themselves over the course of 30 seconds or so. That's why I didn't tape them, because I had to make almost continual adjustments on the damn things. It was really weird. I'd send tone, calibrate. Switch tone off and send it again and bam, it would be way, way off. There were also instances where I would turn up the gain and the levels would move up some and then wouldn't budge no matter how high up I turned the knob. I was just talking to the camera's owner about it yesterday (I told him he really needs to send this thing in, as it's nearly unusable), and he seemed skeptical about it. All told, I'd say I was seeing a variation of 10 dB or so. Scary.
Marco Leavitt is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > The Tools of DV and HD Production > All Things Audio

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 01:04 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network