Intermittent dead pixel???? at DVinfo.net

Go Back   DV Info Net > Sony XAVC / XDCAM / NXCAM / AVCHD / HDV / DV Camera Systems > Sony HDV and DV Camera Systems > Sony VX2100 / PD170 / PDX10 Companion

Sony VX2100 / PD170 / PDX10 Companion
Topics also include Sony's TRV950, VX2000, PD150 & DSR250 family.


Reply
 
Thread Tools Search this Thread
Old June 11th, 2006, 09:24 AM   #1
Major Player
 
Join Date: Aug 2003
Location: Conway, NH
Posts: 574
Intermittent dead pixel????

While shooting a wedding Friday, I noticed a green dot in the center of the screen of my DSR250. It lasted a while, then when I started shooting again after a break of approx. 45 minutes (switched to another camera), the dot had disappeared. Another break of 60 minutes (dinner), and the dot returned.

Shot something yesterday.... no dot.

What the heck?!?!? Can a pixel work and then not work back and forth? What would it cost to have this fixed?
Bill Edmunds is offline   Reply With Quote
Old June 11th, 2006, 08:17 PM   #2
Regular Crew
 
Join Date: Sep 2005
Location: San Fernando Valley, California
Posts: 36
Whats the dot recorded on the tape?
or did it only show on the cameras LCD Monitor/Viewfinder?
David Aguilar is offline   Reply With Quote
Old June 11th, 2006, 09:47 PM   #3
Wrangler
 
Join Date: May 2002
Location: Vallejo, California
Posts: 4,049
Camera temperature has something to do with it. I have a hot pixel on my DSR-300 and when cold, the pixel shows up only at max gain. If I run the camera for a few hours, the pixel will show up at 0 gain. DSR-300's do get warm as do PD-150's if run long enough.
__________________
Mike Rehmus
Hey, I can see the carrot at the end of the tunnel!
Mike Rehmus is offline   Reply With Quote
Old June 11th, 2006, 09:51 PM   #4
Major Player
 
Join Date: Aug 2003
Location: Conway, NH
Posts: 574
Quote:
Originally Posted by Mike Rehmus
Camera temperature has something to do with it. I have a hot pixel on my DSR-300 and when cold, the pixel shows up only at max gain. If I run the camera for a few hours, the pixel will show up at 0 gain. DSR-300's do get warm as do PD-150's if run long enough.
What do you do then? Switch to another camera? What if you're in the middle of recording an event? Does your PD150 have this issue as well?

The odd part is that the temperature was very even inside the room I was operating in. I had only been runing the camera for one or two hours as well.
Bill Edmunds is offline   Reply With Quote
Old June 11th, 2006, 09:52 PM   #5
Major Player
 
Join Date: Aug 2003
Location: Conway, NH
Posts: 574
Quote:
Originally Posted by David Aguilar
Whats the dot recorded on the tape?
or did it only show on the cameras LCD Monitor/Viewfinder?
Recorded on the tape, alas.
Bill Edmunds is offline   Reply With Quote
Old June 13th, 2006, 05:53 AM   #6
Inner Circle
 
Join Date: Mar 2003
Location: Billericay, England UK
Posts: 4,711
It'll be a stationery dot on the image then. You could trry to mask it with a clear frame with a dark dot in the exact spot.

Happened to me once. A tiny spot of grease on my wide-angle caused a flare spot that really spoilt a lot of my outdoor, intothesun footage. So I made up a soft-edged mask and colour-coded it to suit. Took hours.

Worked very well indeed, and has taught me to be very careful indeed with lens cleaning, aperture selection, focal lengths and hoods.

tom.
Tom Hardwick is offline   Reply With Quote
Old June 14th, 2006, 07:44 PM   #7
Go Cycle
 
Join Date: Dec 2001
Location: Huntington, NY
Posts: 795
Hate to say this, Mike is correct. Camera temperature effects the appearance of a dead pixel in the CCD block. You most likely will have to place another block in the unit or find a repair shop that MAY mask the dead pixel via a mapping device. If it is visible at 0 gain, it will have to be replaced.


LOU
__________________
Lou Bruno
Lou Bruno is offline   Reply With Quote
Old June 14th, 2006, 10:05 PM   #8
Major Player
 
Join Date: Aug 2003
Location: Conway, NH
Posts: 574
Quote:
Originally Posted by Lou Bruno
Hate to say this, Mike is correct. Camera temperature effects the appearance of a dead pixel in the CCD block. You most likely will have to place another block in the unit or find a repair shop that MAY mask the dead pixel via a mapping device. If it is visible at 0 gain, it will have to be replaced.
Dare I ask... how much will this cost me?
Bill Edmunds 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 > Sony XAVC / XDCAM / NXCAM / AVCHD / HDV / DV Camera Systems > Sony HDV and DV Camera Systems > Sony VX2100 / PD170 / PDX10 Companion

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 01:34 PM.


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