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


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Old October 4th, 2008, 06:00 PM   #1
 
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EX3 - Seeing Rolling Shadows In Some Shots

Once in a while I get shots, and I don't know how else to describe this, that have what appears to be a rolling shadow(s) in the brighter areas.

Shooting 1920x1080-30p @1/60 shutter speed.

What I am doing wrong?
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Old October 4th, 2008, 06:40 PM   #2
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Jay,
I'm sure you know a picture is worth a thousand words. In this case maybe a small video sample.
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Old October 4th, 2008, 07:33 PM   #3
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I have seen the same in my footage in the last couple of days and I suspect it is a problem with my new Letus. Are you using a 35 mm adapter?
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Old October 4th, 2008, 07:47 PM   #4
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Quote:
Originally Posted by Jay Gladwell View Post
Once in a while I get shots, and I don't know how else to describe this, that have what appears to be a rolling shadow(s) in the brighter areas.

Shooting 1920x1080-30p @1/60 shutter speed.

What I am doing wrong?
If it is occurring while panning, this is one of the problems I have noticed with footage from these cameras. Even some of the sample clips linked in the first section of the forum exhibit this problem. The Hawaiian Fishing video comes to mind.

John
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Old October 4th, 2008, 08:08 PM   #5
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Own the camera for a year and have never seen this.
The only artifact I've seen that has a rolling effect is the rolling shutter under certain fluorescent lighting. This is expected.

Please point to the examples you've seen here.
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Old October 4th, 2008, 09:05 PM   #6
 
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When I saw the problem, I dumped the files. I'll try again tomorrow and post something.
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Old October 4th, 2008, 09:14 PM   #7
 
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Quote:
Originally Posted by Ola Christoffersson View Post
I have seen the same in my footage in the last couple of days and I suspect it is a problem with my new Letus. Are you using a 35 mm adapter?
No, just the stock lens.
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Old October 5th, 2008, 09:01 AM   #8
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Originally Posted by Steven Thomas View Post
Own the camera for a year and have never seen this.
The only artifact I've seen that has a rolling effect is the rolling shutter under certain fluorescent lighting. This is expected.

Please point to the examples you've seen here.
The Hawaiin Fishing video clips were here:

http://www.dvinfo.net/conf/ex-series...-shot-ex1.html

When I click on that link it says the .mov file has been removed.

I guess Dean Sensui has a TV show, but I couldn't find it there:

Welcome to Hawaii Goes Fishing

John
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Old October 5th, 2008, 10:15 AM   #9
 
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I've tried uploading a clip to Vimeo, but it looked like garbage. So much so you couldn't see the shadow flutter (I deleted it).

As HD is totally new to me, any help would be appreciate (using Vegas Pro 8).

Thanks!
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Old October 5th, 2008, 10:28 AM   #10
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Odd.
Vimeo is actually really good. Also, it even allows the HD version to be attached.
You should have no trouble showing video quality on vimeo.

I've only used vimeo once, but it worked well.
SONY PMW-EX1 Arizona Renaissance Festival on Vimeo
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Old October 5th, 2008, 10:32 AM   #11
 
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Steve, I'm not blaming Vimeo! It's all my doing, no doubt. As I said, this HD format is totally new to me... like starting over.

I'm sure I did something, or failed to do something, that created a crappy video file.
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Old October 5th, 2008, 01:42 PM   #12
 
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Update

I tried shooting some additional footage (nothing fancy or "beautiful"). The fluttering seems to only show where electric lights (incandescent) are shown. However, it only appears at the 30p frame rate at 1/60 of a second. I also tried 24p at 1/48 and 60i at 1/60. There were no flutters.

So what is it about 30p at 1/60 that creates these flutters?
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Old October 8th, 2008, 12:38 AM   #13
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I posted about this in another thread, does it look like this:

Sony EX1 Problems, please help! on Vimeo
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Old October 8th, 2008, 06:00 AM   #14
 
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Originally Posted by Jesse Morgan View Post
I posted about this in another thread, does it look like this:

Sony EX1 Problems, please help! on Vimeo
Jesse, have you seen the thread Ola started? It has some good tips in it!
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