noise in the image? at DVinfo.net

Israel Monrroy · February 13th, 2007, 04:19 PM

hello guys as you may know im set on geting a JVC100u or 110 now i have been reading about "NOISE IN THE IMAGE.
what does this mean, what is it

Phil Bloom · February 13th, 2007, 05:01 PM

it's like gain noise but with no gain set! there are other threads about this

Tim Dashwood · February 13th, 2007, 06:04 PM

I've only had a HD250 in my hands for a few days, but I did notice that you now have the option to turn the DNR off. Is it possible you are seeing noise when the DNR is off?

Jiri Bakala · February 13th, 2007, 06:15 PM

Tim,

have you notice any audible noise (fan noise) coming from the back of the camera?

Tyson Perkins · February 13th, 2007, 06:19 PM

DNR is on - and yes no change?

Phil Bloom · February 13th, 2007, 06:24 PM

dnr is on and still noise

Stephen L. Noe · February 13th, 2007, 06:28 PM

Quote:

Originally Posted by Israel Monrroy

hello guys as you may know im set on geting a JVC100u or 110 now i have been reading about "NOISE IN THE IMAGE.
what does this mean, what is it

Noise in the image of what? The LCD? The viewfinder? or the resulting image after capture?

If it's the LCD or viewfinder the problem is that the peaking pot is turned up too high.

If it's in the resulting video image after capture then let's have a look at the image because video noise is very rarely complained about with the ProHD series.

Phil Bloom · February 13th, 2007, 06:57 PM

noisy end result not peaking

Tyson Perkins · February 13th, 2007, 07:06 PM

Would you like to post some images up Phil? I'm not on my editing computer at this moment.

Tim Dashwood · February 13th, 2007, 09:52 PM

Quote:

Originally Posted by Jiri Bakala

Tim,

have you notice any audible noise (fan noise) coming from the back of the camera?

I haven't noticed any fan noise yet and I had the camera turned on all day Monday. I'll try again in a warmer environment.

I can hear drum and tape transport noise when it winds up to record. No worse than the HD100 though.

Jiri Bakala · February 14th, 2007, 01:09 AM

Tim, the noise I am referring to is a clearly audible fan-like noise coming from the rear of the camera. It doesn't make any difference what battery is used, the same noise is generated even without any battery while the camera is plugged into an external power source.

The noise is quieter than the loading and threading of the tape mechanism but loud enough to be picked up by a lapel microphone during an interview in a quiet room at a distance of some 2-3 meters (6-10"). It's certainly a significant difference to the HD100 series, which don't make any such sound, implying that they don't have the same cooling fan.

Drew Curran · February 14th, 2007, 04:41 AM

I've noticed it in my HD100 when played via component thru my HDTV (picture noise - not fan noise). Sort of like mosquito noise, swirling around, especially in the darker areas of a shot.

I thought the HD2xx series should have reduced this.

Andrew

Stephen L. Noe · February 14th, 2007, 07:08 AM

Quote:

Originally Posted by Drew Curran

I've noticed it in my HD100 when played via component thru my HDTV (picture noise - not fan noise). Sort of like mosquito noise, swirling around, especially in the darker areas of a shot.

I thought the HD2xx series should have reduced this.

Andrew

What are you monitoring the video with?

Drew Curran · February 14th, 2007, 10:13 AM

Stephen
At the moment, I'm using the computer LCD (17"), so I don't know if its my camera or the HDTV. I don't have a dedicated monitor.

Andrew

February 13th, 2007, 04:19 PM	#1
Israel Monrroy New Boot Join Date: Feb 2007 Location: new york city Posts: 6	noise in the image? hello guys as you may know im set on geting a JVC100u or 110 now i have been reading about "NOISE IN THE IMAGE. what does this mean, what is it

February 13th, 2007, 05:01 PM	#2
Phil Bloom Trustee Join Date: Aug 2006 Location: London UK Posts: 1,939	it's like gain noise but with no gain set! there are other threads about this __________________ Philip Bloom Cinematographer, Director, Filmmaker www.philipbloom.net

February 13th, 2007, 06:04 PM	#3
Tim Dashwood Wrangler Join Date: Aug 2005 Location: Toronto, ON, Canada Posts: 3,637	I've only had a HD250 in my hands for a few days, but I did notice that you now have the option to turn the DNR off. Is it possible you are seeing noise when the DNR is off? __________________ Tim Dashwood

February 13th, 2007, 06:15 PM	#4
Jiri Bakala Major Player Join Date: Apr 2004 Location: Kelowna BC Canada Posts: 706	Tim, have you notice any audible noise (fan noise) coming from the back of the camera? __________________ www.ascentfilms.com

February 13th, 2007, 06:24 PM	#6
Phil Bloom Trustee Join Date: Aug 2006 Location: London UK Posts: 1,939	dnr is on and still noise __________________ Philip Bloom Cinematographer, Director, Filmmaker www.philipbloom.net

February 13th, 2007, 06:19 PM	#5
Tyson Perkins Major Player Join Date: Oct 2006 Location: sydney, australia Posts: 221	DNR is on - and yes no change?

February 13th, 2007, 06:57 PM	#8
Phil Bloom Trustee Join Date: Aug 2006 Location: London UK Posts: 1,939	noisy end result not peaking __________________ Philip Bloom Cinematographer, Director, Filmmaker www.philipbloom.net

February 13th, 2007, 07:06 PM	#9
Tyson Perkins Major Player Join Date: Oct 2006 Location: sydney, australia Posts: 221	Would you like to post some images up Phil? I'm not on my editing computer at this moment.

February 14th, 2007, 01:09 AM	#11
Jiri Bakala Major Player Join Date: Apr 2004 Location: Kelowna BC Canada Posts: 706	Tim, the noise I am referring to is a clearly audible fan-like noise coming from the rear of the camera. It doesn't make any difference what battery is used, the same noise is generated even without any battery while the camera is plugged into an external power source. The noise is quieter than the loading and threading of the tape mechanism but loud enough to be picked up by a lapel microphone during an interview in a quiet room at a distance of some 2-3 meters (6-10"). It's certainly a significant difference to the HD100 series, which don't make any such sound, implying that they don't have the same cooling fan. __________________ www.ascentfilms.com

February 14th, 2007, 04:41 AM	#12
Drew Curran Major Player Join Date: Jun 2006 Location: N. Ireland Posts: 370	Noise, as in picture noise? I've noticed it in my HD100 when played via component thru my HDTV (picture noise - not fan noise). Sort of like mosquito noise, swirling around, especially in the darker areas of a shot. I thought the HD2xx series should have reduced this. Andrew __________________ Pixol www.pixol.co www.facebook.com/pixolmedia www.twitter.com/pixolmedia

February 14th, 2007, 10:13 AM	#14
Drew Curran Major Player Join Date: Jun 2006 Location: N. Ireland Posts: 370	Stephen At the moment, I'm using the computer LCD (17"), so I don't know if its my camera or the HDTV. I don't have a dedicated monitor. Andrew __________________ Pixol www.pixol.co www.facebook.com/pixolmedia www.twitter.com/pixolmedia