A white point appears on all that I film at DVinfo.net

Daniel Limoges · February 6th, 2004, 07:20 PM

A white point appears on all that I film ...and I do not know if that is the lens or that comes from the case of the xl1s ?
I bought Xl1s kit in October 2003. brandnew!

Write me and I you will send an image with the white point !

segomil@ca.inter.net

daniel limoges

Rob Lohman · February 6th, 2004, 08:57 PM

Did the "white point" just appear or has it been there since
day 1? Shoot me an e-mail with the picture at visuar@iname.com
and I'll put it on the web so everybody can see it.

Daniel Limoges · February 6th, 2004, 09:41 PM

hi!
The white point appears everywhere I film ,has weak light and shutter 1/15 1/30... 1/60 seems to be ok!
f1.6 to 2.7 + -

the Xl1s are brandnew.
I cleaned the lenses many times, but nothing has to make,it seems that that comes from the interior of the case or the interior of the lenses!?

Don Berube · February 6th, 2004, 11:34 PM

Daniel,

Email me some pictures. I'll take a look at them.

- don

Robert Knecht Schmidt · February 7th, 2004, 12:23 AM

Do a search for "hot pixel."

Don Palomaki · February 7th, 2004, 05:58 AM

See the "About the CCD" note on the bottom of page 109 of the XL1s owners manual.

It states" Due to the construction of the CCD, in low-light recording using the slow shutter or gaining up, small specks of light may become visible in the viewfinder. In such cases, increase the shutter speed, reduce the gain or use an additional light source such as a video light."

A similar note is found on pge 71 of the XL1 manual.

The pixel appears to have a high 'dark current' tha becomes apparent in poor light situations where it is amplified by gain, or through long expsoure (sample) times.

If the camcorder is new (a few days from the dealer), you might be able to return it for another one.

And you may be able to mask the hot pixel in post production.

Robert Knecht Schmidt · February 7th, 2004, 06:07 AM

I believe the masking can be done in-camera with a firmware adjustment performed by the service center.

Daniel Limoges · February 7th, 2004, 07:23 AM

....use an additional light source such as a video light....

Yes but ,when i films outside,that's has becomes difficult

Rick Bravo · February 7th, 2004, 10:37 PM

Hopefully, the white pixel you are seeing is only in the eyepiece. If the spot remains on screen when viewing it, then you porbably have a bad pixel in your CCD block.

If it is in the CCD, then I would send it back for repair. It's not fair that you have to correct every, single frame that you shoot! This includes work-arounds and cover-up such as adding more light, framing the bad spot into brighter areas or using software to correct the anomaly.

Personaly, when I buy a high-end piece of equipment, I don't expect it to screw up out of the box...I absolutely, positively, don't need any help screwing up...I can do that all by myself!

RB

Rob Lohman · February 8th, 2004, 01:22 PM

The pixel(s) is/are in the footage as well. I posted Daniel's
screenshot here.

Looks to me like a hot pixel which would need fixing at a Canon
repair centre. As Don pointed out low-light can also bring out
such issues. If it also happens during normal light levels it's
probably a hot pixel.

Daniel Limoges · February 8th, 2004, 01:39 PM

yES 'it also happens during normal light levels !

February 6th, 2004, 07:20 PM	#1
Daniel Limoges Regular Crew Join Date: Nov 2003 Location: quebec canada Posts: 52	A white point appears on all that I film A white point appears on all that I film ...and I do not know if that is the lens or that comes from the case of the xl1s ? I bought Xl1s kit in October 2003. brandnew! Write me and I you will send an image with the white point ! segomil@ca.inter.net daniel limoges

February 6th, 2004, 08:57 PM	#2
Rob Lohman RED Code Chef Join Date: Oct 2001 Location: Holland Posts: 12,514	Did the "white point" just appear or has it been there since day 1? Shoot me an e-mail with the picture at visuar@iname.com and I'll put it on the web so everybody can see it. __________________ 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

February 6th, 2004, 09:41 PM	#3
Daniel Limoges Regular Crew Join Date: Nov 2003 Location: quebec canada Posts: 52	... hi! The white point appears everywhere I film ,has weak light and shutter 1/15 1/30... 1/60 seems to be ok! f1.6 to 2.7 + - the Xl1s are brandnew. I cleaned the lenses many times, but nothing has to make,it seems that that comes from the interior of the case or the interior of the lenses!?

February 6th, 2004, 11:34 PM	#4
Don Berube Moderator Join Date: Mar 2002 Location: Boston, MA (travel frequently) Posts: 837	Daniel, Email me some pictures. I'll take a look at them. - don __________________ DONALD BERUBE - noisybrain. Productions, LLC Director Of Photography/ Producer/ Consultant http://noisybrain.com/donbio.html CREATE and NETWORK with http://www.bosfcpug.org and also http://fcpugnetwork.org

February 7th, 2004, 12:23 AM	#5
Robert Knecht Schmidt Wrangler Join Date: Feb 2002 Location: Cleveland, Ohio Posts: 1,933	Do a search for "hot pixel." __________________ All the best, Robert K S Search DVinfo.net for quick answers \| The best in the business: DVinfo.net sponsors

February 7th, 2004, 05:58 AM	#6
Don Palomaki Wrangler Join Date: Sep 2001 Location: Northern VA Posts: 4,487	See the "About the CCD" note on the bottom of page 109 of the XL1s owners manual. It states" Due to the construction of the CCD, in low-light recording using the slow shutter or gaining up, small specks of light may become visible in the viewfinder. In such cases, increase the shutter speed, reduce the gain or use an additional light source such as a video light." A similar note is found on pge 71 of the XL1 manual. The pixel appears to have a high 'dark current' tha becomes apparent in poor light situations where it is amplified by gain, or through long expsoure (sample) times. If the camcorder is new (a few days from the dealer), you might be able to return it for another one. And you may be able to mask the hot pixel in post production. __________________ dpalomaki@dspalomaki.com

February 7th, 2004, 06:07 AM	#7
Robert Knecht Schmidt Wrangler Join Date: Feb 2002 Location: Cleveland, Ohio Posts: 1,933	I believe the masking can be done in-camera with a firmware adjustment performed by the service center. __________________ All the best, Robert K S Search DVinfo.net for quick answers \| The best in the business: DVinfo.net sponsors

February 7th, 2004, 07:23 AM	#8
Daniel Limoges Regular Crew Join Date: Nov 2003 Location: quebec canada Posts: 52	....use an additional light source such as a video light.... Yes but ,when i films outside,that's has becomes difficult

February 7th, 2004, 10:37 PM	#9
Rick Bravo Major Player Join Date: Sep 2003 Location: Miami, FL Posts: 574	Bad pixel...bad, bad pixel! Hopefully, the white pixel you are seeing is only in the eyepiece. If the spot remains on screen when viewing it, then you porbably have a bad pixel in your CCD block. If it is in the CCD, then I would send it back for repair. It's not fair that you have to correct every, single frame that you shoot! This includes work-arounds and cover-up such as adding more light, framing the bad spot into brighter areas or using software to correct the anomaly. Personaly, when I buy a high-end piece of equipment, I don't expect it to screw up out of the box...I absolutely, positively, don't need any help screwing up...I can do that all by myself! RB __________________ "The future ain't what it used to be." Yogi Berra. www.rbravo.com

February 8th, 2004, 01:22 PM	#10
Rob Lohman RED Code Chef Join Date: Oct 2001 Location: Holland Posts: 12,514	The pixel(s) is/are in the footage as well. I posted Daniel's screenshot here. Looks to me like a hot pixel which would need fixing at a Canon repair centre. As Don pointed out low-light can also bring out such issues. If it also happens during normal light levels it's probably a hot pixel. __________________ 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

February 8th, 2004, 01:39 PM	#11
Daniel Limoges Regular Crew Join Date: Nov 2003 Location: quebec canada Posts: 52	.. yES 'it also happens during normal light levels !