What's the deal with noise banding?

User: Flat view
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Forum   Canon EOS 7D / 50D - 10D
Subject   What's the deal with noise banding?  [SIMILAR]
Posted by   joe mama [PROFILE]
Date/Time   23:02:40, 27 November 2004 (GMT)

Don't shoot the messenger. OK, I know the pic sucks, but check out the weird horizontal noise banding (it looks vertical do to the orientation of the camera). Anyway, there was a thread a while ago about this kind of noise in high-ISO flash shots, but this was not using a flash. The lens was a Sigma 18-50 / 2.8, all the rest of the info in in the exif after the images.

Oh yeah -- although the images I posted were right out of the camera, I also tried using NoiseNinja. There was no effect on the banding. Think a firmware update can fix this?


Resized:

http://www.saimport.com/images/noise.jpg


100% unedited crop:

http://www.saimport.com/images/noise-crop.jpg


EXIF:

Model - Canon EOS 20D
Orientation - Top left
ExposureTime - 1/4 seconds
FNumber - 2.80
ExposureProgram - Aperture priority
ISOSpeedRatings - 3200

ShutterSpeedValue - 1/4 seconds
ApertureValue - F 2.80
ExposureBiasValue - 0.00
MeteringMode - Multi-segment
Flash - Not fired, compulsory flash mode
FocalLength - 18 mm

ExposureMode - Auto
WhiteBalance - Manual
SceneCaptureType - Standard

Focus mode - MF
Image size - Large
Easy shooting mode - Manual
Digital zoom - None
Contrast - Low , -2
Saturation - Normal
Sharpness - Low , -2
ISO Value - 32767 (other)
Metering mode - Evaluative
Focus type - Auto
AF point selected -
Exposure mode - Av-priority
Focal length - 18 - 50 mm
Flash activity - Not fired
White Balance - Custom
Image Type - Canon EOS 20D
Firmware Version - Firmware 1.0.5


--
--joe

Please delete my images and unrelated text from your response when replying!

Some (well, a lot!) of my better shots:

http://www.pbase.com/joemama/

Please feel free to criticize, make suggestions, and edit my photos. But, if you don't mind, please be courteous and not pass off my photos as your own (or anyone else's!).
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