Vignette problem

Vito DeFilippo · February 21st, 2008, 08:30 AM

Quote:

Originally Posted by Tom Hardwick

I wonder when you say 'the darkened corners' Paul if you're seeing simply less exposed corners (which is quite normal at full aperture)

But if it were that, wouldn't he see the vignette as a constant presence whether he's moving the camera or not?

Steven Thomas · February 21st, 2008, 08:43 AM

Quote:

Originally Posted by Vito DeFilippo

But if it were that, wouldn't he see the vignette as a constant presence whether he's moving the camera or not?

In this case, since the vignette is visible, the OIS shifts this around.

I've heard of no complaints with vignetting at full wide and max aperture f1.9
The vignetting issue mainly affects 8-25mm range with aperture settings wider than f5.6.
This is known issue that affect some (apparently quite a few) of these cameras.
My replacement camera also has the issue, although, not as bad as my first.
Cameras that have this issue can watch the vignette shift around with OIS on.

Paul, your camera is probaly VERY close to my current camera.
I'm not sure why Sony is claiming your camera is OK, when we all know there are cameras that do not have this issue at all.

I'd like to know the specfics on how they are making this adjustment.

Vito DeFilippo · February 21st, 2008, 08:59 AM

Quote:

Originally Posted by Steven Thomas

In this case, since the vignette is visible, the OIS shifts this around.

Oh. I understood his post to mean that he saw no vignette until he moved the camera.

Paul Joy · February 21st, 2008, 09:01 AM

I've contacted one of the managers at Sony UK who I met through the video forum in London to find out what he thinks about it. I'll hold out from getting too rattled about it until I've had a chance to talk it through with him first.

My camera only suffers very very slightly with OIS off, and I'm happy with those shots. But I've started using my shoulder rig a lot lately and like to use OIS. If I handle the camera very gently I can get away with it, but any sudden movement brings the darkened corners crashing into the shot.

Watch this space!

Lonnie Bell · February 21st, 2008, 09:31 AM

Paul,
OIS is usually recommended to be turned off on most cameras when the operator is panning/tilting while on a tripod or movement via steadicam, dolly, etc., due to the OIS fighting the intended movement of the camera operator - which I don't see as as being any different from being rigged on your shoulder unless you are being completely static.

But a problem is a problem and I'd put it back on Sony to fix it.

Just two cents worth - good luck,
Lonnie

Paul Joy · February 21st, 2008, 09:39 AM

Quote:

Originally Posted by Vito DeFilippo

Oh. I understood his post to mean that he saw no vignette until he moved the camera.

Pretty much correct, I can see it with OIS off, but it's so slight that it's not a big problem. With OIS on though, the fact that the effect has motion makes it much more apparent.

Look at this clip, http://www.olikai.com/shake.mov it's a very wobbly shot, way too wobbly to use but you can see the effect on the right side of the frame as the camera wobbles.

Steven Thomas · February 21st, 2008, 10:26 AM

Paul, I'd like to see this same test with the OIS off. Mainly between 8-25mm.
When you say slight, I'm wondering if mine's worse.

Paul Joy · February 21st, 2008, 11:17 AM

The first frame of that clip is a pretty good indication off how it looks with OIS off as the stabiliser isn't having any effect at that point. All you can see is some slight graduation in the top right corner.

Lonnie Bell · February 22nd, 2008, 07:24 AM

Paul,
my apologies...
Here I am chiming in about reducing intentional operator movement with the OIS activated, blah blah blah and then I saw ois-vignette-1.mov:

Don't short change your self, something is amiss with your camera, send it back for a new one.

Lonnie

Vito DeFilippo · February 22nd, 2008, 07:39 AM

Yeah, that's pretty awful. I wouldn't accept that either...

Gerald Loidl · February 25th, 2008, 03:16 PM

Those of you who sent in their cameras - how long did it take to have it repaired? My camera is away for a week now and I´ve not heard anything about it yet. I´ve sold all my old cameras on ebay and I´m now camera-less...
I called Sony Service today and they did not know anything about the EX1´s status. They did not even know where exactly my camera is! They only know that it arrived last week. I have to say that I´m getting a little impatient now.

thanks and regards,
Gerald

Chuck Wall · February 25th, 2008, 03:23 PM

Hi
They had mine 13 days door to door.

Chuck

Gerald Loidl · February 25th, 2008, 03:28 PM

Quote:

Originally Posted by Chuck Wall

Hi
They had mine 13 days door to door.

Chuck

Thanks Chuck!
Wow - thats pretty long!!!
Looks like I will have to rent a camera for the next job :-(

Michael H. Stevens · February 26th, 2008, 12:29 AM

Did the test today and I find I have some vignetting. Really very slight in top right corner. Mine was bought late but was an early model so should I insist on an exchange from B&H or just let SONY rebuild it? Have there been any modifications made that make it better to try for a current camera?

Gerald Loidl · February 26th, 2008, 01:56 AM

Michael,
my camera is a very current camera and still has the same problem...

February 21st, 2008, 09:01 AM	#484
Paul Joy Major Player Join Date: Mar 2007 Location: Norfolk, UK Posts: 627	I've contacted one of the managers at Sony UK who I met through the video forum in London to find out what he thinks about it. I'll hold out from getting too rattled about it until I've had a chance to talk it through with him first. My camera only suffers very very slightly with OIS off, and I'm happy with those shots. But I've started using my shoulder rig a lot lately and like to use OIS. If I handle the camera very gently I can get away with it, but any sudden movement brings the darkened corners crashing into the shot. Watch this space! __________________ Blog: www.pauljoy.com Company: www.videotrader.co.uk Last edited by Paul Joy; February 21st, 2008 at 09:47 AM.

February 21st, 2008, 09:31 AM	#485
Lonnie Bell Major Player Join Date: Mar 2006 Location: Las Vegas, NV United States Posts: 361	Paul, OIS is usually recommended to be turned off on most cameras when the operator is panning/tilting while on a tripod or movement via steadicam, dolly, etc., due to the OIS fighting the intended movement of the camera operator - which I don't see as as being any different from being rigged on your shoulder unless you are being completely static. But a problem is a problem and I'd put it back on Sony to fix it. Just two cents worth - good luck, Lonnie __________________ Lonnie Bell mamas boy productions Las Vegas, NV

February 21st, 2008, 11:17 AM	#488
Paul Joy Major Player Join Date: Mar 2007 Location: Norfolk, UK Posts: 627	The first frame of that clip is a pretty good indication off how it looks with OIS off as the stabiliser isn't having any effect at that point. All you can see is some slight graduation in the top right corner. __________________ Blog: www.pauljoy.com Company: www.videotrader.co.uk

February 22nd, 2008, 07:24 AM	#489
Lonnie Bell Major Player Join Date: Mar 2006 Location: Las Vegas, NV United States Posts: 361	Paul, my apologies... Here I am chiming in about reducing intentional operator movement with the OIS activated, blah blah blah and then I saw ois-vignette-1.mov: Don't short change your self, something is amiss with your camera, send it back for a new one. Lonnie __________________ Lonnie Bell mamas boy productions Las Vegas, NV

February 22nd, 2008, 07:39 AM	#490
Vito DeFilippo Trustee Join Date: Mar 2006 Location: Montreal, Quebec Posts: 1,585	Yeah, that's pretty awful. I wouldn't accept that either... __________________ . http://www.nosmallroles.com

February 21st, 2008, 10:26 AM	#487
Steven Thomas Trustee Join Date: Sep 2005 Location: Gilbert, AZ Posts: 1,896	Paul, I'd like to see this same test with the OIS off. Mainly between 8-25mm. When you say slight, I'm wondering if mine's worse.

February 25th, 2008, 03:16 PM	#491
Gerald Loidl Regular Crew Join Date: Feb 2008 Location: Austria Posts: 122	Those of you who sent in their cameras - how long did it take to have it repaired? My camera is away for a week now and I´ve not heard anything about it yet. I´ve sold all my old cameras on ebay and I´m now camera-less... I called Sony Service today and they did not know anything about the EX1´s status. They did not even know where exactly my camera is! They only know that it arrived last week. I have to say that I´m getting a little impatient now. thanks and regards, Gerald

February 25th, 2008, 03:23 PM	#492
Chuck Wall Regular Crew Join Date: Dec 2005 Location: Pittsburgh Posts: 111	Hi They had mine 13 days door to door. Chuck

February 26th, 2008, 12:29 AM	#494
Michael H. Stevens Major Player Join Date: Sep 2007 Location: Palm Desert, California Posts: 311	Did the test today and I find I have some vignetting. Really very slight in top right corner. Mine was bought late but was an early model so should I insist on an exchange from B&H or just let SONY rebuild it? Have there been any modifications made that make it better to try for a current camera?

February 26th, 2008, 01:56 AM	#495
Gerald Loidl Regular Crew Join Date: Feb 2008 Location: Austria Posts: 122	Michael, my camera is a very current camera and still has the same problem...