Vignette problem - Page 10 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 November 28th, 2007, 01:22 PM   #136
Obstreperous Rex
 
Join Date: Jan 2001
Location: San Marcos, TX
Posts: 26,900
Images: 513
Quote:
Originally Posted by Eric Pascarelli View Post
I guess I need Chris' permission. It says I "may not post attachments."
Per my email to you, I thought I fixed this -- you may need to log out and back in again -- if you don't see a "manage attachments" button below the text input area when making a reply, please let me know by email. It may have something to do with forum permissions in that case.
__________________
CH

Search DV Info Net | DV Info Net Sponsors | A Decade (+5) of DVi | ...Tuesday is Soylent Green Day!
Chris Hurd is offline   Reply With Quote
Old November 28th, 2007, 01:28 PM   #137
Major Player
 
Join Date: Nov 2007
Location: Los Angeles, CA
Posts: 498
Here are two full size grabs.

The soft one is deep focus, the sharp one is close focus.

Don't be alarmed by the noise - I had gain maxed and the 6-stop ND filter on to home in on a good wide-open exposure.
Attached Thumbnails
Vignette problem-closefocuswideopen.jpg   Vignette problem-deepfocuswideopen.jpg  

Eric Pascarelli is offline   Reply With Quote
Old November 28th, 2007, 01:29 PM   #138
Major Player
 
Join Date: Nov 2007
Location: Los Angeles, CA
Posts: 498
Chris - permissions are working (apparently). Thanks.
Eric Pascarelli is offline   Reply With Quote
Old November 28th, 2007, 01:55 PM   #139
Inner Circle
 
Join Date: Aug 2006
Location: Poland
Posts: 4,086
Quote:
Originally Posted by Eric Pascarelli View Post
Here are two full size grabs.

The soft one is deep focus, the sharp one is close focus.

Don't be alarmed by the noise - I had gain maxed and the 6-stop ND filter on to home in on a good wide-open exposure.
It beats me how something like this could have passed the QC.
__________________
Sony PXW-FS7 | DaVinci Resolve Studio; Magix Vegas Pro; i7-5960X CPU; 64 GB RAM; 2x GTX 1080 8GB GPU; Decklink 4K Extreme 12G; 4x 3TB WD Black in RAID 0; 1TB M.2 NVMe cache drive
Piotr Wozniacki is offline   Reply With Quote
Old November 28th, 2007, 01:59 PM   #140
Inner Circle
 
Join Date: Feb 2004
Location: Brooklyn, NY, USA
Posts: 3,782
Eric, judging from those stills it also exhibits a blueish hue on the right side. It though I saw that on Paul Joy's shots although it was on the left.

Try OIS off.
I thought Adam Wilt believe the issue was related to the focus mechanism rather than OIS.
Craig Seeman is offline   Reply With Quote
Old November 28th, 2007, 02:05 PM   #141
Trustee
 
Join Date: Oct 2005
Location: Gilbert, AZ
Posts: 1,896
Eric you are right, my monitor is underscanned. Not by much though, not as much as the safe area on the EX1 LCD outlines. At least using the component inputs. Although the camera's LCD is small, I see no issues. I will capture a test soon.

Eric, you examples are not as bad compared to Paul's.
http://www.dvinfo.net/conf/attachmen...2&d=1195761898
Steven Thomas is offline   Reply With Quote
Old November 28th, 2007, 02:49 PM   #142
Trustee
 
Join Date: Feb 2006
Location: USA
Posts: 1,684
I wonder if this issue is similar to the inconsistency we found in the HVX imaging blocks not always being centered on the lens. This didn't show up until we started focusing in on 35mm adapters on the HVX.
In the Panny case it sounds like it was due to manufacturing tolerances not being strict enough. Similar issue perhaps?
Leonard Levy is offline   Reply With Quote
Old November 28th, 2007, 03:13 PM   #143
Trustee
 
Join Date: Oct 2005
Location: Gilbert, AZ
Posts: 1,896
OK...
Here's the deal.
I've got it... vignetting
Now I'm wondering if they all have it and some are not looking hard enough for it.
Hmm...
Is it bad enough to return, will it effect normal shots, it's hard to say.
I know one thing, Sony is going to have their "ear full" on this one.
This should of NEVER left QC!
Steven Thomas is offline   Reply With Quote
Old November 28th, 2007, 04:02 PM   #144
Major Player
 
Join Date: Mar 2007
Location: Norfolk, UK
Posts: 627
Sorry to see you've got the same problem guys, I really hoped mine was a one off . Please let us know how you get on if you go the Sony support route, I'm interested to know if Sony are going to fix it or just decide that it's within tolerances.

what a shame!

Paul.
__________________
Blog: www.pauljoy.com
Company: www.videotrader.co.uk
Paul Joy is offline   Reply With Quote
Old November 28th, 2007, 04:20 PM   #145
Trustee
 
Join Date: Oct 2005
Location: Gilbert, AZ
Posts: 1,896
Thanks Paul.
Good question.
I'm not sure if I want to give the camera up.
When they figure out how to address this situation.
I will send it to them.
It's now aparent, you just can't order another camera.
I believe the percentage pf cams with an issue here are probably 75%.
I have a feeling it may be higher as everyone gets theirs.

Here's a quick look at my vignetting.
Please overlook focus and white balance. I was focus at a far distance near the end.
Also, to make the vignetting more obvious, I only reduced the image brightness.
It only happens between 10mm - 25mm.
Attached Thumbnails
Vignette problem-vignetting_1.jpg  
Steven Thomas is offline   Reply With Quote
Old November 28th, 2007, 04:31 PM   #146
Major Player
 
Join Date: Mar 2007
Location: Norfolk, UK
Posts: 627
Yours doesn't look so bad Steven, it seems the sensors are biased to the right side and hence only showing the effect on the right. Eric's on the other hand looks almost as bad as the one I had.

In both cases the OIS will definitely make it worse, I looked over some of the hand held footage I shot and I can see the vignetting moving around in the corners.
__________________
Blog: www.pauljoy.com
Company: www.videotrader.co.uk
Paul Joy is offline   Reply With Quote
Old November 28th, 2007, 04:44 PM   #147
Regular Crew
 
Join Date: Mar 2004
Location: sherbrooke (Quebec) Canada
Posts: 108
bad QC or bad design ? ...in your opinion ?
Antoine Fabi is offline   Reply With Quote
Old November 28th, 2007, 04:44 PM   #148
Trustee
 
Join Date: Feb 2006
Location: USA
Posts: 1,684
I didn't go through this entire thread but has anyone talked to Sony about this yet? Has there been a response?
Leonard Levy is offline   Reply With Quote
Old November 28th, 2007, 04:51 PM   #149
Regular Crew
 
Join Date: Nov 2004
Posts: 1,414
I don't have one to play with, and I hate to toss in an idea where I can't test it myself but...

my question is... could this be sensor heat noise??

The way I check the Canon 1Ds is to just put the cam on a tri-pod, open the shutter for a couple minutes with the lens cap on and let the camera take a picture... The picture comes out as black and if the camera suffers from
thermal noise the noise shows up as a purple vignett where the sensor is
suffering from heat....

If the sensor is OK then the picture just stays as black .....

Just maybe a test needs to be done on the EX1 to make sure its not thermal
related...

might even slightly warm the camera up with a hair dryer from about a foot away from the camera during the test??
Ray Bell is offline   Reply With Quote
Old November 28th, 2007, 05:12 PM   #150
Trustee
 
Join Date: Oct 2005
Location: Gilbert, AZ
Posts: 1,896
I captured it after the camera was only on for two minutes.
I don't believe it is due to heat.
Steven Thomas 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 06:08 PM.


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