HVR-HD1000P for video shoot in India/ major problem with video footages at DVinfo.net

Damien Krishnan · January 15th, 2008, 11:19 AM

Hello Everyone,

Just came back from a video shoot in India. We used the HVR-HD1000P in HDV 1080I format.

Camera functionality not that user friendly. always need to go to the manual ring to change focus, zoom, etc..etc.. very cumbersome : (

BTW I am having major problems with some of my video footages which I only realised when I was back in Singapore. Some of my video footages on the HDV tapes while capturing had subtle running streak moving from top to bottom continuosly, they appeared at random in the HDV tapes ( I don't know whether my camera's faulty or cameraman at fault ). Check the same HDV tapes on my HDV decks and the problem persisted. I used both firewire and HDMI for capture and still the same. Concluded the problem had arised during the video shooting and while recording to tape. What did we do wrong? and Is there a solution to remedy the problem?

Patrick Jenkins · January 17th, 2008, 03:25 PM

Any chance you could post a still image? Sounds like data dropout/corruption. Did you clean the tape heads at all while shooting? If not, that's probably the problem.

Giroud Francois · January 17th, 2008, 04:05 PM

difference between 50 and 60Hz lighting ?

Patrick Jenkins · January 17th, 2008, 04:38 PM

http://www.mindfully.org/Resource/Vi...mats-World.htm

India and Singapore seem to be both PAL (I assume 50hz for both or some derivative).

I've shot a lot of 50hz PAL in NTSC 60hz surrounding area, and lighting it isn't a rolling top->bottom effect so much as an steady, intermittent flicking along frames. Maybe with a really weird shutter speed.. not sure.

Mikko Lopponen · January 17th, 2008, 04:58 PM

Quote:

Originally Posted by Patrick Jenkins

I've shot a lot of 50hz PAL in NTSC 60hz surrounding area, and lighting it isn't a rolling top->bottom effect so much as an steady, intermittent flicking along frames. Maybe with a really weird shutter speed.. not sure.

If the camera has a rolling shutter then it would most likely have a rolling top to bottom effect.

Damien Krishnan · January 22nd, 2008, 11:44 PM

Please download to view the problem ( about less than 5mb file )

Link: http://www.yousendit.com/download/ww...R0ZUMFBIRGc9PQ

Chris Soucy · January 23rd, 2008, 12:38 AM

Well, that sure looks like good 'ol flourescent roll to me.

The interaction of the 100 Hz flourescent strike rate with the chosen shutter speed would appear to give the problem I'm seeing on my screen.

(Flouro's strike twice per mains cycle, 50 Hz mains, 100 Hz strikes on the lights).

If the shutter speed is faster that about 1/50 (or even less) then you are bound to get this effect.

As far as I know, absolutely bugger all you can do to fix it (afterwards) I'm afraid.

Don't shoot faster than 1/50, preferably 1/25, so you get two full strikes for every frame (or even one full strike for every field if using I mode).

CS

PS. It came up as only 1.6 meg on my download.

Leo Bodnar · February 14th, 2008, 06:46 AM

I can't get the video. What is the period of one full roll?

The mains frequency might not be exactly 50Hz and I would guess this might be specifically true in rural or remote areas supplied by smaller/older power stations. If the mains frequency drops to 49.5Hz you get 2 second beat pattern with PAL framerate that might look like a rolling band.

Maybe I am talking tosh!..

Sai Kiran · March 21st, 2009, 07:49 AM

How much was the price of HVR HD 1000 in India?

January 15th, 2008, 11:19 AM	#1
Damien Krishnan New Boot Join Date: Dec 2007 Location: Singapore Posts: 11	HVR-HD1000P for video shoot in India/ major problem with video footages Hello Everyone, Just came back from a video shoot in India. We used the HVR-HD1000P in HDV 1080I format. Camera functionality not that user friendly. always need to go to the manual ring to change focus, zoom, etc..etc.. very cumbersome : ( BTW I am having major problems with some of my video footages which I only realised when I was back in Singapore. Some of my video footages on the HDV tapes while capturing had subtle running streak moving from top to bottom continuosly, they appeared at random in the HDV tapes ( I don't know whether my camera's faulty or cameraman at fault ). Check the same HDV tapes on my HDV decks and the problem persisted. I used both firewire and HDMI for capture and still the same. Concluded the problem had arised during the video shooting and while recording to tape. What did we do wrong? and Is there a solution to remedy the problem? Last edited by Damien Krishnan; January 15th, 2008 at 07:45 PM.

January 17th, 2008, 03:25 PM	#2
Patrick Jenkins Major Player Join Date: Sep 2004 Location: Maryland, USA Posts: 382	Any chance you could post a still image? Sounds like data dropout/corruption. Did you clean the tape heads at all while shooting? If not, that's probably the problem. __________________ PAL shooter in NTSC territory

January 17th, 2008, 04:38 PM	#4
Patrick Jenkins Major Player Join Date: Sep 2004 Location: Maryland, USA Posts: 382	http://www.mindfully.org/Resource/Vi...mats-World.htm India and Singapore seem to be both PAL (I assume 50hz for both or some derivative). I've shot a lot of 50hz PAL in NTSC 60hz surrounding area, and lighting it isn't a rolling top->bottom effect so much as an steady, intermittent flicking along frames. Maybe with a really weird shutter speed.. not sure. __________________ PAL shooter in NTSC territory

January 22nd, 2008, 11:44 PM	#6
Damien Krishnan New Boot Join Date: Dec 2007 Location: Singapore Posts: 11	This is how the footage looks like Please download to view the problem ( about less than 5mb file ) Link: http://www.yousendit.com/download/ww...R0ZUMFBIRGc9PQ

January 23rd, 2008, 12:38 AM	#7
Chris Soucy Inner Circle Join Date: Feb 2007 Location: Fairfield, Dunedin, New Zealand Posts: 3,691 Images: 18	Hi Damien.................... Well, that sure looks like good 'ol flourescent roll to me. The interaction of the 100 Hz flourescent strike rate with the chosen shutter speed would appear to give the problem I'm seeing on my screen. (Flouro's strike twice per mains cycle, 50 Hz mains, 100 Hz strikes on the lights). If the shutter speed is faster that about 1/50 (or even less) then you are bound to get this effect. As far as I know, absolutely bugger all you can do to fix it (afterwards) I'm afraid. Don't shoot faster than 1/50, preferably 1/25, so you get two full strikes for every frame (or even one full strike for every field if using I mode). CS PS. It came up as only 1.6 meg on my download. Last edited by Chris Soucy; January 23rd, 2008 at 12:40 AM. Reason: Addition

January 17th, 2008, 04:05 PM	#3
Giroud Francois Inner Circle Join Date: Feb 2004 Location: switzerland Posts: 2,133	difference between 50 and 60Hz lighting ?

February 14th, 2008, 06:46 AM	#8
Leo Bodnar Regular Crew Join Date: Jul 2005 Posts: 26	I can't get the video. What is the period of one full roll? The mains frequency might not be exactly 50Hz and I would guess this might be specifically true in rural or remote areas supplied by smaller/older power stations. If the mains frequency drops to 49.5Hz you get 2 second beat pattern with PAL framerate that might look like a rolling band. Maybe I am talking tosh!..

March 21st, 2009, 07:49 AM	#9
Sai Kiran New Boot Join Date: Mar 2009 Location: Kerala, India Posts: 7	How much was the price of HVR HD 1000 in India How much was the price of HVR HD 1000 in India?