Digital Rebel XT Pattern Noise Problem at DVinfo.net

Peter Moore · October 30th, 2005, 12:52 PM

Noticed this today after getting the camera. Very bad pattern noise (which all the reviews said was eliminated!) with ISO 800 or 1600. Check it out:

http://www.mooreusa.net/pictures/lines.jpg

This was taken at ISO 1600. This is annoying enough for me to take the camera back. I had the original Digital Rebel and never had a problem at 1600 (it was grainy, of course, but no pattern noise like that).

Basically EVERY picture I take at ISO 1600 has this pattern.

Defect? Normal?

Thanks.

Peter Moore · November 1st, 2005, 12:56 PM

Can anyone at least verify that this is NOT normal?

Rob Lohman · November 11th, 2005, 04:16 AM

I can try on my own XT, but the highest ISO levels always introduce a lot of
noise. No way around it. However, you can set the digital noise reduction on
in the custom functions!

Peter Moore · November 11th, 2005, 07:35 AM

Thanks for the reply Rob. It is not normal. I checked with Canon, sent then the picture and they confirmed this. I replaced the camera, and it is fine. Yes, lots of noise at ISO 1600, just like there would be with 35mm film, but not in a pattern.

David Mintzer · November 12th, 2005, 04:18 PM

Quote:

Originally Posted by Peter Moore

Thanks for the reply Rob. It is not normal. I checked with Canon, sent then the picture and they confirmed this. I replaced the camera, and it is fine. Yes, lots of noise at ISO 1600, just like there would be with 35mm film, but not in a pattern.

There is a great little program you can buy that will get rid of noise in pics shot with a high ISO---its called Neat Image.

Rob Lohman · November 21st, 2005, 04:33 AM

So it seems you got a new body that solved the problem Peter? That's good news!

Kevin Shaw · November 21st, 2005, 08:52 PM

Quote:

Originally Posted by Peter Moore

Thanks for the reply Rob. It is not normal. I checked with Canon, sent then the picture and they confirmed this. I replaced the camera, and it is fine.

Did they replace the camera under Canon warranty, or what? I just noticed similar banding on my high-ISO files the other night and was going to just ignore it for now, but if it's a fixable problem I might as well find out what my options are.

Peter Moore · November 21st, 2005, 09:00 PM

I replaced the camera at the store. Problem was gone.

October 30th, 2005, 12:52 PM	#1
Peter Moore Trustee Join Date: Oct 2002 Location: Arlington VA Posts: 1,034	Digital Rebel XT Pattern Noise Problem Noticed this today after getting the camera. Very bad pattern noise (which all the reviews said was eliminated!) with ISO 800 or 1600. Check it out: http://www.mooreusa.net/pictures/lines.jpg This was taken at ISO 1600. This is annoying enough for me to take the camera back. I had the original Digital Rebel and never had a problem at 1600 (it was grainy, of course, but no pattern noise like that). Basically EVERY picture I take at ISO 1600 has this pattern. Defect? Normal? Thanks.

November 11th, 2005, 04:16 AM	#3
Rob Lohman RED Code Chef Join Date: Oct 2001 Location: Holland Posts: 12,514	I can try on my own XT, but the highest ISO levels always introduce a lot of noise. No way around it. However, you can set the digital noise reduction on in the custom functions! __________________ 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

November 21st, 2005, 04:33 AM	#6
Rob Lohman RED Code Chef Join Date: Oct 2001 Location: Holland Posts: 12,514	So it seems you got a new body that solved the problem Peter? That's good news! __________________ 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

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November 1st, 2005, 12:56 PM	#2
Peter Moore Trustee Join Date: Oct 2002 Location: Arlington VA Posts: 1,034	Can anyone at least verify that this is NOT normal?

November 11th, 2005, 07:35 AM	#4
Peter Moore Trustee Join Date: Oct 2002 Location: Arlington VA Posts: 1,034	Thanks for the reply Rob. It is not normal. I checked with Canon, sent then the picture and they confirmed this. I replaced the camera, and it is fine. Yes, lots of noise at ISO 1600, just like there would be with 35mm film, but not in a pattern.

November 21st, 2005, 09:00 PM	#8
Peter Moore Trustee Join Date: Oct 2002 Location: Arlington VA Posts: 1,034	I replaced the camera at the store. Problem was gone.