Optical Stabilzer Question at DVinfo.net

Lou Bruno · July 26th, 2006, 07:10 PM

Just got my new XL-2 yesterday. I noticed that there is a slight stuttering of the picture every so often that only occurs when the stabilizer is engaged.

I observe the stuttering in the EVF.......it is more pronounced on my LCD Editing Monitor than on my JVC Hi-Resolution (not HD) record studio monitor.

Is this related to the Optical Stabilizer when fully zoomed-in to a subject and there is movement by then camera operator?

Thanks in advance,
LOU

Chris Hurd · July 26th, 2006, 08:51 PM

Hi Lou,

Is the camera mounted on a tripod when this is happening? If so, then the explanation is that the OIS is fighting the intentional movement of the pan (or zoom). In this case you want to turn off OIS.

Zack Vohaska · July 26th, 2006, 09:24 PM

Lou,
I'm pretty sure Chris hit the nail on the head there -- turn the OIS off when tilting or panning. Your situation is exactly what happened in a shoot I had done earlier today. Unfortunately, one instance of some B roll footage I took is useless because I had my XL2 zoomed in quite a ways, and when panning the camera, I noticed lots of stuttering in the footage once I captured it. It then occurred to me that I got lost in the moment I was shooting and forgot to turn of the image stabilizer.

Turning it off should correct your issue.

Lou Bruno · July 26th, 2006, 09:30 PM

I am handheld. ???

Quote:

Originally Posted by Chris Hurd

Hi Lou,

Is the camera mounted on a tripod when this is happening? If so, then the explanation is that the OIS is fighting the intentional movement of the pan (or zoom). In this case you want to turn off OIS.

Lou Bruno · July 26th, 2006, 09:31 PM

Exactly what I observed.......going handheld.

Quote:

Originally Posted by Zack Vohaska

Lou,
I'm pretty sure Chris hit the nail on the head there -- turn the OIS off when tilting or panning. Your situation is exactly what happened in a shoot I had done earlier today. Unfortunately, one instance of some B roll footage I took is useless because I had my XL2 zoomed in quite a ways, and when panning the camera, I noticed lots of stuttering in the footage once I captured it. It then occurred to me that I got lost in the moment I was shooting and forgot to turn of the image stabilizer.

Turning it off should correct your issue.

Adam Bray · July 27th, 2006, 12:12 AM

what frame rate are you using?

Lou Bruno · July 27th, 2006, 06:37 AM

60i.................

Quote:

Originally Posted by Adam Bray

what frame rate are you using?

Chris Hurd · July 27th, 2006, 08:15 AM

Lou, I've known you online for a very long time... going back to usenet days... so in your case I think the problem might be that all of your experience in handholding cameras has perhaps caused you to become too good for the OIS. Your technique might be so steady that you're unintentionally fooling the OIS into working against you. Try switching it off and see if the situation improves.

Lou Bruno · July 28th, 2006, 07:13 AM

Thanks.................I did just that. It seemed that my shot was very steady.
Any slight flinching caused the "scene" to catch-up with the slight movement.
SO.................for long extended shots, the OS is OFF.

Thanks again!! LOU

July 26th, 2006, 07:10 PM	#1
Lou Bruno Go Cycle Join Date: Dec 2001 Location: Huntington, NY Posts: 815	Optical Stabilzer Question Just got my new XL-2 yesterday. I noticed that there is a slight stuttering of the picture every so often that only occurs when the stabilizer is engaged. I observe the stuttering in the EVF.......it is more pronounced on my LCD Editing Monitor than on my JVC Hi-Resolution (not HD) record studio monitor. Is this related to the Optical Stabilizer when fully zoomed-in to a subject and there is movement by then camera operator? Thanks in advance, LOU __________________ Lou Bruno

July 26th, 2006, 08:51 PM	#2
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,366 Images: 513	Hi Lou, Is the camera mounted on a tripod when this is happening? If so, then the explanation is that the OIS is fighting the intentional movement of the pan (or zoom). In this case you want to turn off OIS. __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

July 26th, 2006, 09:24 PM	#3
Zack Vohaska Regular Crew Join Date: Mar 2006 Location: Chicago, IL Posts: 74	Lou, I'm pretty sure Chris hit the nail on the head there -- turn the OIS off when tilting or panning. Your situation is exactly what happened in a shoot I had done earlier today. Unfortunately, one instance of some B roll footage I took is useless because I had my XL2 zoomed in quite a ways, and when panning the camera, I noticed lots of stuttering in the footage once I captured it. It then occurred to me that I got lost in the moment I was shooting and forgot to turn of the image stabilizer. Turning it off should correct your issue. __________________ -Z-

July 27th, 2006, 08:15 AM	#8
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,366 Images: 513	Lou, I've known you online for a very long time... going back to usenet days... so in your case I think the problem might be that all of your experience in handholding cameras has perhaps caused you to become too good for the OIS. Your technique might be so steady that you're unintentionally fooling the OIS into working against you. Try switching it off and see if the situation improves. __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

July 28th, 2006, 07:13 AM	#9
Lou Bruno Go Cycle Join Date: Dec 2001 Location: Huntington, NY Posts: 815	Thanks.................I did just that. It seemed that my shot was very steady. Any slight flinching caused the "scene" to catch-up with the slight movement. SO.................for long extended shots, the OS is OFF. Thanks again!! LOU __________________ Lou Bruno

July 27th, 2006, 12:12 AM	#6
Adam Bray Major Player Join Date: Sep 2004 Location: Houston/Austin Posts: 394	what frame rate are you using?