Vertical lines

[BBones]

Please feel free to move this thread if needed.

Been noticing lately that my photos from my 1D Mark 2 (with latest firmware) have all been "banding" or have vertical lines running through them. Not as noticeable in regular screen size, but really noticeable at 100%. I have a lot of shoots coming up very soon so I can't really send the camera into Canon immediately, but does anyone know any common fixes either with the camera or in post?

http://studio819.smugmug.com/photos/133754516-O.jpg

[BBones]

supplemental info

Canon 1D Mark2
ISO 160
70-200 IS L 2.8
Latest firmware
Shooting in H mode + AI Servo
RAW only image

[TristanP]

Does it only happen when you have underexposure?

[BBones]

seems that way, yes. I see it in untouched photos while view them in RawShooter Essentials. Very obvious once I bump up the exposure

[ziggy53]

Does it only happen when you have underexposure?
Good call Tristan!

Most digital cameras exhibit forms of "banding" when pushed from underexposure.

I see the shot was at ISO 160. I suggest bumping the ISO to 400 or 800, and then more careful exposures, adding EC if necessary, to prevent underexposure.

The Canon 1D MKII has such a low noise floor that pushing the exposure seems to work pretty well, but it's not a good policy as demonstrated.

Noise reduction software can often reduce the effects, especially coupled with layers and masking to preserve the detail in unaffected areas.