Can anyone tell me what this is? at DVinfo.net

Go Back   DV Info Net > Sony XAVC / XDCAM / NXCAM / AVCHD / HDV / DV Camera Systems > Sony XDCAM EX Pro Handhelds

Sony XDCAM EX Pro Handhelds
Sony PMW-300, PXW-X200, PXW-X180 (back to EX3 & EX1) recording to SxS flash memory.


Reply
 
Thread Tools Search this Thread
Old October 12th, 2009, 11:35 PM   #1
Major Player
 
Join Date: Feb 2007
Location: Seattle WA
Posts: 411
Can anyone tell me what this is?

Out shooting today and found on all my clips a purplish smudge at the bottom of the frame to the right. Looks kind of like a lipstick smear in some of them. I assumed it must be something on the lens and gave it a thorough cleaning but the problem didn't go away. I'm not sure what to think. The spot doesn't move, stays in the same position, but becomes invisible over some backgrounds/lighting conditions and very visible in others. Could this be a sensor problem? Appreciate any insight. Thanks- Unedited stills attached.
Attached Thumbnails
Can anyone tell me what this is?-spot-1.jpg   Can anyone tell me what this is?-spot-2.jpg  

Can anyone tell me what this is?-spot-3.jpg   Can anyone tell me what this is?-spot-4.jpg  

__________________
http://www.markoconnell.org
Mark OConnell is offline   Reply With Quote
Old October 13th, 2009, 12:45 AM   #2
Regular Crew
 
Join Date: Nov 2008
Location: San Francisco, CA
Posts: 121
My first thought was that you might have inadvertently focused the sun on your sensor, but then I realized that it would be impossible when I saw that you're in Seattle ... ;-) (sorry, I grew up there and couldn't resist!)

You didn't mention it, but do you have a filter on? If so, try it without the filter.

Did this just start? Can you correlate it with anything odd happening?
__________________
EX3, Z1U, FX1, D1X / NeXTstation Turbo Color / FCS3
Brooks Graham is offline   Reply With Quote
Old October 13th, 2009, 01:23 AM   #3
Trustee
 
Join Date: Feb 2006
Location: USA
Posts: 1,684
Call Sony right away and send them the pics. Looks weird to me.
Leonard Levy is offline   Reply With Quote
Old October 13th, 2009, 01:43 AM   #4
Inner Circle
 
Join Date: Dec 2005
Location: Bracknell, Berkshire, UK
Posts: 4,957
Kind of looks like sun damage to me, but it's hard to tell.
__________________
Alister Chapman, Film-Maker/Stormchaser http://www.xdcam-user.com/alisters-blog/ My XDCAM site and blog. http://www.hurricane-rig.com
Alister Chapman is offline   Reply With Quote
Old October 13th, 2009, 03:03 AM   #5
Regular Crew
 
Join Date: Jan 2009
Location: Warrington, UK
Posts: 48
Could it be a tiny bit of dust or a hair on one of the sensors perhaps ??.

Stuart
Stuart Wilson is offline   Reply With Quote
Old October 13th, 2009, 04:56 AM   #6
Major Player
 
Join Date: Aug 2009
Location: South Australia
Posts: 371
Hi Mark,
I had a very similar thing happen to me with one of my other camera's and it turn out to be dead pixels. I think Alister is right but before you panic, one of the Sony Tech that was servicing my camera said turn the camera on leave it running for an hour so all componets are up to temperature. Now do a white balance then a black balance and another white balance and repeat the process about ten times. The camera's firmware and black balance circuit is where the bad pixel masking takes place.

I did this and got rid of them, now I got into the habit and always do white,black and white balance regardless of what camera I use. The problem with the EX3 is the black balance is set in the menu and not by external switch.

That camera is now a backup and if it is not used for some time or the CR2023 internal battery runs flat the dead pixels come back and I have to repeat the process.

Try it if Sony are true to form they may have of included the feature in the EX series. I have not seen this feature mentioned in the manuals.
Lance Librandi is offline   Reply With Quote
Old October 13th, 2009, 01:08 PM   #7
Major Player
 
Join Date: Feb 2007
Location: Seattle WA
Posts: 411
Thanks for your responses, wish something more definite had turned up. Brook- I did consider the filter and tried it with the filter off with the same results, unfortunately... The problem did just start, came out of nowhere it would seem. My last shoot a few days ago (spawning salmon in the North Cascades) looked great, no sign of this at all. The only thing I noticed even a bit odd was that when I removed the lens hood to remove the filter it seemed a little stuck. That's it. I'll try to get Sony on the phone today. The last time I had to send a camera to them for service it was gone a solid month. What a drag...
__________________
http://www.markoconnell.org
Mark OConnell is offline   Reply With Quote
Old October 28th, 2009, 11:32 AM   #8
Major Player
 
Join Date: Feb 2007
Location: Seattle WA
Posts: 411
Update- And the winner is (drum roll.....) Stuart Wilson with "dust on the sensor". (You can pick up your prize in the lobby on your way out).

The solution: replace the prism block. Ouch. Will hopefully have it back from Teaneck by the end of next week.
__________________
http://www.markoconnell.org
Mark OConnell 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 XDCAM EX Pro Handhelds

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 10:55 PM.


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