Lightroom: Banding in LR4 with RAW files from 5D Mark I.

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  • Updated 6 years ago
  • (Edited)
Hello! I noticed some banding on the shadow my 5D images when I imported them using Lightroom 4. I included links to direct jpegs from both DPP and LR4 from the RAW image in question for comparison. This was straight from the camera with no post-processing of any kind. The JPEG from Canon DPP didn't have this, so I don't think it's a sensor issue with the camera. It's visible when viewed at 100%.

http://dl.dropbox.com/u/35482106/IMG_...
http://dl.dropbox.com/u/35482106/IMG_...

Any comments would be appreciated.
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Angelo Jacinto

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Posted 6 years ago

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Aravind Krishnaswamy

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Angelo,

I can see the artifact you are referring to. Its more like a maze artifact than banding. Can you please post a link to the original CR2 file? Thanks.
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Angelo Jacinto

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Hi Aravind,

Thanks for your reply. Here's the link to the CR2 file.
http://dl.dropbox.com/u/35482106/IMG_...
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Aravind Krishnaswamy

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Thanks Angelo. I am able to reproduce the artifacts you mention. Does this show up with other files from your camera taken around the same time as this one? How about other shoots?
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Angelo Jacinto

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Hi Arvind,

I had a closer look at all my 5D CR2 files and they all had these artifacts at similar darker/out-of-focus areas in the photos. They seem to be most apparent at low ISOs (100-400). Shooting direct to JPEG doesn't produce the patterns.

I also had a chance to compare them with RAW files taken at similar ISO levels from the cameras I previously owned or borrowed (7D, 20D, 350D, G1X, S95). This seems to be an isolated case with the 5D's files.

Let me know if you need more information. Thanks for your help!
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Aravind Krishnaswamy

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Angelo, it appears the artifacts you are seeing (which it turns out is vertical banding as you originally described) is mostly likely due to a calibration issue with that specific 5D's sensor. At this time, Camera Raw / Lightroom 4 doesn't correct for this type of artifact.

I don't have an ideal workaround for you at this time. One thing to try is to use the local adjustment brush with a negative sharpen value which might reduce the visibility of the banding a little bit.
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jdv, Champion

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Could he try to create his DNG profiles and use that in the calibration panel? If it is sensor-specific, that is.
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Aravind Krishnaswamy

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I'm afraid custom DNG profiles won't help here since they are used for calibrating color. In this case, it appears to be a miscalibration in the column amplifiers which is not something you can profile with the DNG profile creator.
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Angelo Jacinto

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Thanks for your help Aravind, John. I just turn the noise reduction a bit when I shoot RAW to circumvent this. This seems to take care of it for now.
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Raj Sarma

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Hi,

I've been a hardcore Lightroom & Camera RAW user since version 2 and over the years have built a substantial catalogue all the way up to LR 3.5RC. In my experience, LR generally does a very good job of handling all RAW files and I haven't had much complaints except for the colours from time to time. However, one of my recent experiences has left me stumped; I bought a used Olympus E-330, this is such an awesome camera, but when I load the ORF files into Lightroom, upon zooming in I see a very weird cross-hatch pattern across the entire image. This is something I haven't noticed with any other RAW software but ACR & Lightroom. This problem is so bad, it actually affects all fine detail and flat areas in the image. I've attached a sample file for reference. Has anyone had similar problems with the Olympus E-330?


This reply was created from a merged topic originally titled
Lightroom: Weird Demosaicing (maze) pattern on RAW files.
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craig schneider

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hi, i posted a problem pic in the lightroom forum and was told my image had a problem called a "maze artifact". it is a canvas-like texture that is quite apparent when viewing the images at 200-300%. i have noticed the problem on images from a canon 5d mark 2 and a 5d mark 3. thanks, craig schneider

This reply was created from a merged topic originally titled
LR 4.1: canvas-like texture at 200% magnification.