Image weirdness in this 80d picture. Banding?

[wxjef]

Loaded this image up trying to figure out if it works or not but something kind of caught my eye. Looks like there is some light magenta and teal banding. Didn't do much with the image after converting to tiff from raw in dark table. Also some oddness in the lower part of the frame in the treeline background.

Raw issue? Converter issue? Shutter? Wonder if the lighting conditions messed with things maybe confusing the scene for flicker?

Maybe my aging eyeballs?

I did notice that the .cr2 previews in the system folder (using Linux) showed a strange thumbnail for most images on the card but for the most part images opened and looked fine, but maybe I didn't notice like here?

Image is a little bit on the high key side.

Exif should be intact...

 

[shinksma]

light magenta and teal banding

That could be Chromatic Aberration.

But to be honest, in the image size posted, I'm not seeing anything like what you are concerned about. Maybe it's your monitor acting up? Try looking at a different (older, not yours) but similar image.

 

[Joeseph]

think I can see the line that you mention:



Would need to have a really careful look at the full res image - I've seen a corrupt file before where one half seems to move sideways a pixel or two (or a lot)
In my case the memory card was faulty.

 

[Joeseph]

an extreme example of corrupt file (CF memory card faulty)

 

[wxjef]

Don't think I'm looking at file corruption... I don't have a way to set up to share the actual raw image. The image has been rotated 90° (camera don't automatically rotate). Could be a raw converter issue. Probably slight over exposure on a monochromatic scene and lighting conditions.

Maybe it's just some optical trickery in my eyeballs, the dark tree and brighter background like an optical illusion? Or just subtle differences in the atmosphere, it was foggy after all and did experience some breaks in the fog while taking pictures.

The line that's was pointed out, not sure on yet, perhaps denser fog near the surface? Not sure.

Just something to watch for I suppose. Not sure on the image at all anyway, got another one that's a little bit more underexposed than this one I can look at.

For some reason I opted to pick up the 80d and start tinkering around with it again after it sat on the shelf for I don't even know how long. Actually surprised it booted lol.

 

[the durkarian]

I don't have a way to set up to share the actual raw image.

You could upload the RAW file to Dropbox, Google Drive, or somewhere similar, and then post the link here to share it for a short period of time.

The image has been rotated 90° (camera don't automatically rotate).

Page 387 of the user manual.

 

[shinksma]

think I can see the line that you mention:

View attachment 135605

Would need to have a really careful look at the full res image - I've seen a corrupt file before where one half seems to move sideways a pixel or two (or a lot)
In my case the memory card was faulty.

What you highlight as a possible line indicating a faulty image is just what the OP mentioned might be happening:

Maybe it's just some optical trickery in my eyeballs, the dark tree and brighter background like an optical illusion? Or just subtle differences in the atmosphere, it was foggy after all and did experience some breaks in the fog while taking pictures.

The line that's was pointed out, not sure on yet, perhaps denser fog near the surface? Not sure.

To me, there appears to be a row of shrubs/bushes behind the big tree in the center, but in front of a further line of trees in the far background. Those mid-depth shrubs are all about the same height, and create the illusion that the tree line behind disappears at their height and below. The foreground tree looks complete and undistorted across the entire image. So that's a weird selective bit of image corruption going on affecting just the mid-depth and deeper objects.

The even-closer-to-foreground grass may be aiding in the optical illusion, since it is reasonably consistent in height across the image. And if there was some low fog, that could also add to the effect. Looking at a pixel-for-pixel crop of the area around the right side of the image, where the yellow line is drawn, might provide some pixel-peeping clues.

 

[Mr Chodes]

You have the RAW so do some processing to check it.
ie, adjust levels, saturation, contrast. Not to make the image look good but to see what's going on.
My quick job shows the magenta on the left and top.
Also green on the bottom / right area.
It's also a little easier to see the horizontal line at the bottom.
Very clear on the right side but hard to tell if it continues to the left. I lose it at the first tree trunk.

 

[Capn Jack]

You have the RAW so do some processing to check it.
ie, adjust levels, saturation, contrast. Not to make the image look good but to see what's going on.
My quick job shows the magenta on the left and top.
Also green on the bottom / right area.
It's also a little easier to see the horizontal line at the bottom.
Very clear on the right side but hard to tell if it continues to the left. I lose it at the first tree trunk.

That's a good idea to work from the RAW. That rules out an artifact from a JPEG conversion or an artifact in displaying the image.