FORUMS: list search recent posts

"rolling shutter" on HVX-300?

COW Forums : Panasonic Cameras

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
Mark Shepherd
"rolling shutter" on HVX-300?
on Feb 24, 2009 at 1:18:01 am

I need a professional 1920x1080 camera to shoot high end RED CARPETS . The problem is "rolling shutter" which occurs with CMOS cameras that encounter many flashes from still photographers going off, which causes the frame to become unacceptable with artifacts. I shoot at the Cannes Film festival with about a hundred or more still photographers in the BG pointng their high power flashes directly at my lens. Does the AG-HPX300 have the CMOS chip? Would I have the rolling shutter problem with this camera?


Return to posts index

Shane Ross
Re: "rolling shutter" on HVX-300?
on Feb 24, 2009 at 2:06:29 am

[Mark Shepherd] "Does the AG-HPX300 have the CMOS chip?"

It has CMOS...yes. But instead of one big CMOS, it has three smaller ones, kinda like having 3CCD. But, CMOS being CMOS, there is rolling shutter.

[Mark Shepherd] "Would I have the rolling shutter problem with this camera?"

The 300 has Rolling Shutter.

Look at the HPX-500. DVCPRO HD, but it does 1080. If you need AVCIntra, then look at the HPX-2600. This is a very versatile camera.

Shane



GETTING ORGANIZED WITH FINAL CUT PRO DVD...don't miss it.
Read my blog, Little Frog in High Def


Return to posts index

Jan Crittenden Livingston
Re: "rolling shutter" on HPX-300?
on Feb 24, 2009 at 11:45:43 am

I would concur with Shane that if the rolling shutter artifact cannot be lived with. I mean there is a fix you can apply in post on the singular annoying frame, or frames, then a CCD camera is the way to go. The HPX500 is the next camera up the line, and the next one up with AVC-Inta is the HPX2700.

Best,

Jan

Jan Crittenden Livingston
Product Manager, HPX500, HVX200, DVX100
Panasonic Broadcast & TV Systems



Return to posts index


Mark Shepherd
Re: "rolling shutter" on HVX-300?
on Feb 24, 2009 at 7:23:34 pm

Thanks for the info. I can't seem to find any info on the HPX-2600
Does the Panasonic 500 camera shoot 1920x1080 in 24p?


Return to posts index

Jan Crittenden Livingston
Re: "rolling shutter" on HVX-300?
on Feb 24, 2009 at 8:04:05 pm

[Mark Shepherd] "Thanks for the info. I can't seem to find any info on the HPX-2600
Does the Panasonic 500 camera shoot 1920x1080 in 24p?"



There is no such camera as the HPX2600. Shane had a typo, it is an AJ-HPX2700.

DVCPRO HD has a prefiter in 1920 X 1080, making it 1280 X 1080 at 60Hz or 1440 X 1080 in 50Hz. AVC-Intra, available on the HPX300 and the HPX2700 has a full raster recorind at 1920 X 1080.

Hope this helps,

Jan


Jan Crittenden Livingston
Product Manager, HPX500, HVX200, DVX100
Panasonic Broadcast & TV Systems



Return to posts index

Jeremy Garchow
Re: "rolling shutter" on HVX-300?
on Feb 25, 2009 at 6:13:07 pm

I think Shane was referring to the HPX-2000 and not the 2700.

Here's an article for you to consider:

http://magazine.creativecow.net/article/avcintra-and-the-panasonic-ajhpx200...

Jeremy


Return to posts index


Jan Crittenden Livingston
Re: "rolling shutter" on HVX-300?
on Feb 26, 2009 at 12:52:45 am

Hi Jeremy,

The HPX2000 has to have a board added to get the AVC-Intra, where it is in the HPX2700.

Best,

Jan

Jan Crittenden Livingston
Product Manager, HPX500, HVX200, DVX100
Panasonic Broadcast & TV Systems



Return to posts index

Shane Ross
Re: "rolling shutter" on HVX-300?
on Feb 26, 2009 at 12:54:22 am

Sorry. More of a "forgot the model number" opposed to typo. But same thing.

The 2700 camera is the most versatile HD camera out there...IMHO. And I am a POST guy.



Shane



GETTING ORGANIZED WITH FINAL CUT PRO DVD...don't miss it.
Read my blog, Little Frog in High Def


Return to posts index

Jeremy Garchow
Re: "rolling shutter" on HVX-300?
on Feb 26, 2009 at 5:40:23 am

[Shane Ross] "The 2700 camera is the most versatile HD camera out there...IMHO."

How do you mean? Just curious.


Return to posts index


Jeremy Garchow
Re: "rolling shutter" on HVX-300?
on Feb 26, 2009 at 5:38:13 am

[Jan Crittenden Livingston] "The HPX2000 has to have a board added to get the AVC-Intra, where it is in the HPX2700. "

Yes, we paid $3,000 for it.


Return to posts index

Matthew Romanis
Re: "rolling shutter" on HVX-300?
on Feb 25, 2009 at 2:38:03 am

[Mark Shepherd] "The problem is "rolling shutter" which occurs with CMOS cameras"

Hi Mark,
CMOS cameras don't have to have rolling shutters. There are some CMOS sensors around that have a global shutter like CCD, it comes down to the manufacturer as to how they equip their products.



Return to posts index

Dan Brockett
Re: "rolling shutter" on HVX-300?
on Feb 26, 2009 at 6:58:58 am

I cannot think of a professional video camera that uses CMOS imagers than contains a global shutter. Do you know of one?

Dan

Providing value added material to all of your favorite DVDs


Return to posts index


Matthew Romanis
Re: "rolling shutter" on HVX-300?
on Feb 26, 2009 at 9:54:17 am

Depends how "professional" is classified. Broadcast style ENG cameras with CMOS chips don't have this feature.
Dalsa has a high speed series "Genie" camera with global shutter on a CMOS chip.
It can be done, it's up to the manufacturer to specify the technology for use.
I believe that a rolling shutter is technically easier and uses a bit less power than Global shutter on CMOS chips. This ultimately means lower noise levels off the chip.
Many "machine vision" cameras used in manufacturing are CMOS with global shutter.
Matthew.




Return to posts index

Dan Brockett
Re: "rolling shutter" on HVX-300?
on Feb 26, 2009 at 5:38:56 pm

I agree, it could be done but so far, nobody is stepping up to the plate, not even RED. Eventually they will have to implement global shutters but probably not for a while.

Dan

Providing value added material to all of your favorite DVDs


Return to posts index

Steve Halle
Re: "rolling shutter" on HVX-300?
on May 4, 2009 at 4:05:14 pm

Hi,

As far as I know, the Arri D21 is Global.


Return to posts index


gary adcock
Re: "rolling shutter" on HVX-300?
on May 4, 2009 at 4:26:41 pm

[Steve Halle] "Hi,
As far as I know, the Arri D21 is Global.
"


that would be a mechanical shutter in the case of the Arri D21- just like a Arri film camera.

gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows

Inside look at the IoHD
http://library.creativecow.net/articles/adcock_gary/AJAIOHD.php




Return to posts index

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
© 2017 CreativeCOW.net All Rights Reserved
[TOP]