HMC40/80 in 1080 25P Mode Problem at DVinfo.net

Go Back   DV Info Net > Panasonic P2HD / AVCCAM / AVCHD / DV Camera Systems > Panasonic AVCCAM Camcorders

Panasonic AVCCAM Camcorders
AVCHD for pro applications: AG-AC160, AC130 and other AVCCAM gear.


Reply
 
Thread Tools Search this Thread
Old June 7th, 2011, 09:10 PM   #1
Inner Circle
 
Join Date: Jul 2009
Location: Perth, Western Australia
Posts: 8,222
HMC40/80 in 1080 25P Mode Problem

Hi Guys

I have a break from weddings so I thought I would give my progressive modes a shot!!! (I have been shooting in 1080i at weddings)

Any great ideas on why the footage pixellates???? I have attached a still shot and if you look at the tree branches you can see extensive pixellation there. Cam was in PH 1080 25P mode (PAL cameras) and it also seems to do the same thing in 720 as well.

Some help would be greatly appreciated as I don't want this sort of thing in my wedding footage when the season begins in 2 months!!!!

Chris
Attached Thumbnails
HMC40/80 in 1080 25P Mode Problem-image3.jpg  
Chris Harding is offline   Reply With Quote
Old June 13th, 2011, 03:10 PM   #2
Major Player
 
Join Date: Feb 2010
Location: London
Posts: 302
Re: HMC40/80 in 1080 25P Mode Problem

Hi

That is a very odd result, it doesn't look like typical compression artefacts you get with AVCHD.

What recording rate/quality is it set for?

What are you using to view the files, it might be the decoding software adding those blocks.

Regards

Phil
Phil Lee is offline   Reply With Quote
Old June 13th, 2011, 09:24 PM   #3
Inner Circle
 
Join Date: Jul 2009
Location: Perth, Western Australia
Posts: 8,222
Re: HMC40/80 in 1080 25P Mode Problem

Hi Phil

Thanks a lot...I found the issue!!! The MTS files are pristine when played in VLC media player BUT because my DuoCore 2.2GHz struggles with AVCHD I usually transcode the files to HDV using Upshift..I encoded these the same as I usually do at 50mbps and leave the interlacing setting at "Copy From Input" (since it's already progressive) and set key frames and GOP at 1 (same settings I use for interlaced transcoding) and THAT'S where the pixellation is coming from.!!!!

I wonder why Upshift doesn't appear to be too happy converting progressive footage??? When I transcode normal 1080i I use the same settings but set interlacing to "Progressive" so I have de-interlaced footage for Sony Vegas ... it only seems to create the pixellation when trying to convert progressive raw footage.

Thanks again for identifying the source of the problem..at least I know the cameras are OK!!! Hmmm maybe I need to see if Cineform does a better job???

Chris
Chris Harding 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...

Professional Video
(800) 833-4801
Portland, OR

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

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

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 > Panasonic P2HD / AVCCAM / AVCHD / DV Camera Systems > Panasonic AVCCAM Camcorders

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 03:25 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network