Vignette problem - Page 5 at DVinfo.net
DV Info 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 PXW-Z280, Z190, X180 etc. (going back to EX3 & EX1) recording to SxS flash memory.

Reply
 
Thread Tools Search this Thread
Old November 22nd, 2007, 10:10 AM   #61
Major Player
 
Join Date: Mar 2007
Location: Norfolk, UK
Posts: 627
Quote:
Originally Posted by Sami Sanpakkila View Post
Those who have it have you tried to see if the vignetting appears both on manual and auto focus setting?
It makes no difference, neither does setting OIS on/off.
__________________
Blog: www.pauljoy.com
Company: www.videotrader.co.uk
Paul Joy is offline   Reply With Quote
Old November 22nd, 2007, 10:14 AM   #62
Regular Crew
 
Join Date: Oct 2004
Location: UK 50i/25p Land
Posts: 103
Quote:
Originally Posted by Paul Joy View Post
neither does setting OIS on/off.
Paul, are you able to verify that OIS itself is actually working when it is ON?
Just a guess that it is possibly 'stuck' or mis-aligned in a far-left bias, causing the vignette.
__________________
Play to Learn,
Learn to Earn,
Earn to Play...

Dave - Broader Pictures
Dave Elston is offline   Reply With Quote
Old November 22nd, 2007, 10:23 AM   #63
Trustee
 
Join Date: Sep 2005
Location: Gilbert, AZ
Posts: 1,896
Quote:
Originally Posted by Dave Elston View Post
Paul, are you able to verify that OIS itself is actually working when it is ON?
Just a guess that it is possibly 'stuck' or mis-aligned in a far-left bias, causing the vignette.
Now that's a good question.
Steven Thomas is offline   Reply With Quote
Old November 22nd, 2007, 10:24 AM   #64
Major Player
 
Join Date: Mar 2007
Location: Norfolk, UK
Posts: 627
Sorry the camera is all boxed up now and awaiting collection.
__________________
Blog: www.pauljoy.com
Company: www.videotrader.co.uk
Paul Joy is offline   Reply With Quote
Old November 22nd, 2007, 10:32 AM   #65
Regular Crew
 
Join Date: Oct 2004
Location: UK 50i/25p Land
Posts: 103
Quote:
Originally Posted by Paul Joy View Post
Sorry the camera is all boxed up now and awaiting collection.
No sweat, in any case it seems certain you have a faulty product deserving of replacement. I just hope you're not left 'waiting at the altar' too long.

(Just because it's better to have loved and lost than to have never loved at all ...it doesn't make losing any easier!)
__________________
Play to Learn,
Learn to Earn,
Earn to Play...

Dave - Broader Pictures
Dave Elston is offline   Reply With Quote
Old November 22nd, 2007, 10:34 AM   #66
Major Player
 
Join Date: Mar 2007
Location: Norfolk, UK
Posts: 627
Quote:
Originally Posted by Dave Elston View Post
Just because it's better to have loved and lost than to have never loved at all ...it doesn't make losing any easier!
:( I miss her already!
__________________
Blog: www.pauljoy.com
Company: www.videotrader.co.uk
Paul Joy is offline   Reply With Quote
Old November 22nd, 2007, 10:48 AM   #67
Regular Crew
 
Join Date: Oct 2004
Location: UK 50i/25p Land
Posts: 103
Quote:
Originally Posted by Paul Joy View Post
:( I miss her already!
Just keep telling yourself you've done it for the right reason.
OK, so you could have 'lived with it' but eventually, deep down, you know things would get ugly.
Sending her back home was the best thing for both of you, and still you had a passionate three day affair to remember her by. That's more than most of us!

Guys, Paul needs some group help at this difficult time!
__________________
Play to Learn,
Learn to Earn,
Earn to Play...

Dave - Broader Pictures
Dave Elston is offline   Reply With Quote
Old November 22nd, 2007, 11:00 AM   #68
Major Player
 
Join Date: Mar 2007
Location: Norfolk, UK
Posts: 627
Lol, if Piotr's theory does turn out to be true then I'm sure we'll all be getting fixed cameras anyway. If anyone ends up with S/N 0400172 treat her with care, she's had a hard start in life :)
__________________
Blog: www.pauljoy.com
Company: www.videotrader.co.uk
Paul Joy is offline   Reply With Quote
Old November 22nd, 2007, 11:07 AM   #69
Inner Circle
 
Join Date: Aug 2006
Location: Poland
Posts: 4,086
Quote:
Originally Posted by Paul Joy View Post
Lol, if Piotr's theory does turn out to be true then I'm sure we'll all be getting fixed cameras anyway. If anyone ends up with S/N 0400172 treat her with care, she's had a hard start in life :)
Thanks fro that info, Paul! Now we are in the same boat - waiting. Hard time, isn't it?
__________________
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 22nd, 2007, 11:41 AM   #70
Major Player
 
Join Date: Mar 2007
Location: Norfolk, UK
Posts: 627
Quote:
Originally Posted by Piotr Wozniacki View Post
Hard time, isn't it?
Yup, left feeling empty...

Anyway, we're supposed to be professionals.... enough of this humor already!
Attached Thumbnails
Vignette problem-empty.jpg  
__________________
Blog: www.pauljoy.com
Company: www.videotrader.co.uk
Paul Joy is offline   Reply With Quote
Old November 22nd, 2007, 01:01 PM   #71
Trustee
 
Join Date: Jul 2003
Location: Nicosia, CYPRUS
Posts: 1,080
What is Vignette?

Stelios

P.S. Sorry found the answer in Wikipedia

"In photography and optics, vignetting is a reduction of an image's brightness or saturation at the periphery compared to the image center."
__________________
My Blog: http://steliosc.blogspot.com
"I hope for nothing, I fear nothing, I am free" Nikos Kazantzakis
Stelios Christofides is offline   Reply With Quote
Old November 22nd, 2007, 01:09 PM   #72
Regular Crew
 
Join Date: Nov 2007
Location: Indianapolis, IN
Posts: 29
OK, I have been following the posts on the EX1 for several months now and have had hi hopes for this camera, and still do. Some of the vignetting problems discussed were casting a little rain on my parade and so I took all of the footage I have downloaded from these sights onto a Vegas timeline and went through it frame by frame. Something is definitely there, but I am not convinced yet that it is vignetting from the lens. I say this because in the shots where I saw it, neither the focal length or the iris was being altered, only the angle of the camera. I saw it come and go during motion in the tennis shots that were discussed in this post earlier. And since it was not there all the time is why I am not convinced that it is vignetting. It almost looks as if the Sony matteboxe was casting a shadow on the corner from an overhead light and as the angle of the light changed, so did the "vignette". In outdoor shots during the rain where the light is difuse and even, there is not evidence of it at all. This is all just specualtion since I don't have a camera infront of me, but I am not convinced yet that it is a lense issue as much as a physical issue that with a little more testing can be narrowed down.
Bill Spence is offline   Reply With Quote
Old November 22nd, 2007, 01:09 PM   #73
New Boot
 
Join Date: Aug 2007
Location: United States
Posts: 17
Quote:
Originally Posted by Stelios Christofides View Post
What is Vignette?

Stelios
Stelios,

On at least 2 models of the EX1 (Paul's and an online reviewer's) a small shaded area is appearing mid-zoom in the upper left corner of the picture when the iris is fully open. Check out the first page of this forum to see an example.

Wesley
Wesley Alfvin is offline   Reply With Quote
Old November 22nd, 2007, 01:33 PM   #74
Inner Circle
 
Join Date: Feb 2004
Location: Brooklyn, NY, USA
Posts: 3,841
I reread this from Adam Wilt's look at a preproduction model.

"There is vignetting at wide apertures from 10mm onwards, but Sony tells me that it's due to a bug in this engineering sample's auto-focus system, so I'll refrain from further commentary until I have a production model to work with."

I wonder if anyone with camera can turn on/off auto focus and see if that has impact. It may be a few "bugged" models slipped through production. Some people raised suspicions about OIS but maybe it's the auto focus.
Craig Seeman is offline   Reply With Quote
Old November 22nd, 2007, 01:34 PM   #75
Trustee
 
Join Date: Aug 2006
Location: London UK
Posts: 1,939
Got my hands on the EX1 finally today. Wow, it is lovely...the picture is astounding and that LCD screen?!? For 35mm adaptor work you won't really need an external monitor for focus with focus assist and expanded focus coupled with that resolution.

I tried to get the vignetting issues as described by Paul. I really struggled to find it. By pointing at a blank bright wall and zooming to around 10mm the worst I managed to get was this...you have to really look hard to see it. I see this as not a problem in the slightest.
Attached Thumbnails
Vignette problem-ex-test.jpg  
__________________
Philip Bloom
Cinematographer, Director, Filmmaker www.philipbloom.net
Phil Bloom 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...

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

Scan Computers Int. Ltd.
+44 0871-472-4747
Bolton, Lancashire UK


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

 



All times are GMT -6. The time now is 12:26 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2024 The Digital Video Information Network