Color noise at DVinfo.net

Jeffrey Levenstone · August 17th, 2003, 09:24 AM

Anytime i record with my canon xl1s i get random color noise green, red and blue. this noise is rondow and it doesn't matter the lighting condition. i use shutter 1/60 f 2.4 up to 5.6 with no change if you want to see a freeze frame in tiff go to the link

http://www.mr-art.nl/color_noise.tif

I have all the prefernces set to middle. things like sharp, color phase and so on. I have tried it with gain set to 0 db, auto, -3 and still i have this noise.

If anyone knows a solution i would be very graetfull.

Jeff Donald · August 17th, 2003, 12:16 PM

Your link doesn't work.

Jeffrey Levenstone · August 17th, 2003, 03:44 PM

The link does work but it is a 1mb tiff file. I used it to avoid compression artifacts. I have copy pased that link in my brouwser and the image came up.

Excuse the size of the file

Jeff Donald · August 17th, 2003, 05:56 PM

Sorry, it comes back a 404; Requested URL not found on this server.

Jeffrey Levenstone · August 17th, 2003, 06:28 PM

Try this one. It is a one frame mov file

http://www.mr-art.nl/color_noise.mov

Robert Knecht Schmidt · August 17th, 2003, 08:12 PM

I'm not able to view the Quicktime but the TIF file worked just fine for me. (Jeff, are you sure you weren't accidentally including the period at the end of the URL?)

Is this noise visible in the viewfinder/TV monitor, or is it only apparent after transferring the footage to your computer?

If it's your computer, this is a thread for the experts in one of the two NLE forums. If it's your camera, I'd have it sent in for service.

Jeffrey Levenstone · August 18th, 2003, 03:10 AM

Thanks robert for the reply. And yes i see it when i play it back the monitor and TV no matter what the settings are. Do you know how reset the camera to factory default? Maybe that might help. Right now i would try anything to get this to work.

I removed the dot after the link. I thought that might be the reason.

Rob Lohman · August 20th, 2003, 07:32 AM

Jeffrey,

You do have the s and not the plain XL1, right? Also in what
recording mode where you when you shot this? Did you have
automatic gain turned on by any chance?

What application did you use to capture this frame? [ie, what
NLE are you using?]

Jeffrey Levenstone · August 24th, 2003, 06:27 AM

I have the XL1S. I used the normal mode, not the frame mode. I used -3 DB. I use http://windv.mourek.cz/ to capture. I capture to type 2 DV. I exported this from Discreet Combustion.

And i was also wondering if the is quality loss if in the future i capture thru s-video. from a technical and practical point of view.
My sitation is that i edit on a matrox digisuite le board and i need this data in mjpeg but i havent been able to use any convesion progam to achieve my goal.

Rob Lohman · September 9th, 2003, 09:06 AM

The color noise in that picture seems to be coming from insufficient
light... Or at least it looks like that. I've seen that on my XL1s
as well. Some noise is always present, it seems...

August 17th, 2003, 09:24 AM	#1
Jeffrey Levenstone New Boot Join Date: Jun 2003 Posts: 16	Color noise Anytime i record with my canon xl1s i get random color noise green, red and blue. this noise is rondow and it doesn't matter the lighting condition. i use shutter 1/60 f 2.4 up to 5.6 with no change if you want to see a freeze frame in tiff go to the link http://www.mr-art.nl/color_noise.tif I have all the prefernces set to middle. things like sharp, color phase and so on. I have tried it with gain set to 0 db, auto, -3 and still i have this noise. If anyone knows a solution i would be very graetfull.

August 17th, 2003, 12:16 PM	#2
Jeff Donald Warden Join Date: Mar 2002 Location: Clearwater, FL Posts: 8,287	Your link doesn't work. __________________ Jeff Donald Carpe Diem Search DVinfo.net for quick answers \| Where to Buy? From the best in the business: DVinfo.net sponsors

August 17th, 2003, 03:44 PM	#3
Jeffrey Levenstone New Boot Join Date: Jun 2003 Posts: 16	Link does work The link does work but it is a 1mb tiff file. I used it to avoid compression artifacts. I have copy pased that link in my brouwser and the image came up. Excuse the size of the file

August 17th, 2003, 05:56 PM	#4
Jeff Donald Warden Join Date: Mar 2002 Location: Clearwater, FL Posts: 8,287	Sorry, it comes back a 404; Requested URL not found on this server. __________________ Jeff Donald Carpe Diem Search DVinfo.net for quick answers \| Where to Buy? From the best in the business: DVinfo.net sponsors

August 17th, 2003, 08:12 PM	#6
Robert Knecht Schmidt Wrangler Join Date: Feb 2002 Location: Cleveland, Ohio Posts: 1,933	I'm not able to view the Quicktime but the TIF file worked just fine for me. (Jeff, are you sure you weren't accidentally including the period at the end of the URL?) Is this noise visible in the viewfinder/TV monitor, or is it only apparent after transferring the footage to your computer? If it's your computer, this is a thread for the experts in one of the two NLE forums. If it's your camera, I'd have it sent in for service. __________________ All the best, Robert K S Search DVinfo.net for quick answers \| The best in the business: DVinfo.net sponsors

August 17th, 2003, 06:28 PM	#5
Jeffrey Levenstone New Boot Join Date: Jun 2003 Posts: 16	Try this one. It is a one frame mov file http://www.mr-art.nl/color_noise.mov

August 18th, 2003, 03:10 AM	#7
Jeffrey Levenstone New Boot Join Date: Jun 2003 Posts: 16	Thanks robert for the reply. And yes i see it when i play it back the monitor and TV no matter what the settings are. Do you know how reset the camera to factory default? Maybe that might help. Right now i would try anything to get this to work. I removed the dot after the link. I thought that might be the reason.

August 20th, 2003, 07:32 AM	#8
Rob Lohman RED Code Chef Join Date: Oct 2001 Location: Holland Posts: 12,514	Jeffrey, You do have the s and not the plain XL1, right? Also in what recording mode where you when you shot this? Did you have automatic gain turned on by any chance? What application did you use to capture this frame? [ie, what NLE are you using?] __________________ Rob Lohman, visuar@iname.com DV Info Wrangler & RED Code Chef Join the DV Challenge \| Lady X Search DVinfo.net for quick answers \| Buy from the best: DVinfo.net sponsors

August 24th, 2003, 06:27 AM	#9
Jeffrey Levenstone New Boot Join Date: Jun 2003 Posts: 16	Color noise I have the XL1S. I used the normal mode, not the frame mode. I used -3 DB. I use http://windv.mourek.cz/ to capture. I capture to type 2 DV. I exported this from Discreet Combustion. And i was also wondering if the is quality loss if in the future i capture thru s-video. from a technical and practical point of view. My sitation is that i edit on a matrox digisuite le board and i need this data in mjpeg but i havent been able to use any convesion progam to achieve my goal.

September 9th, 2003, 09:06 AM	#10
Rob Lohman RED Code Chef Join Date: Oct 2001 Location: Holland Posts: 12,514	The color noise in that picture seems to be coming from insufficient light... Or at least it looks like that. I've seen that on my XL1s as well. Some noise is always present, it seems... __________________ Rob Lohman, visuar@iname.com DV Info Wrangler & RED Code Chef Join the DV Challenge \| Lady X Search DVinfo.net for quick answers \| Buy from the best: DVinfo.net sponsors