A little help needed...possible banding issue

Tyke Tiler

Tyke Tiler

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Tomas
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I have a suspicion of possible 'banding' with my D3, I noticed it a while back but it appears to be getting worse.

Second opinions are more than welcome as I'm totally inexperienced with this issue.

Vertical banding:
20100126-nf96uuddyqmndc73agdm9pd5u6.jpg


Full size screen grab

Basically, this is what I'm concerned about, I did a quick thing in photoshop to illustrate what I have been seeing in NEF's for some time in certain circumstances:

20100126-gpibp8dd7gws7rpu8n79jgxdbq.jpg


Does anyone know how or why this happens? Could it be something that I'm doing wrong?

I'll most likely be taking this on for a check up but for now I thought I'd put the feelers out to you fine folk :thumbs:

Thanks for lookin' ;)
 
Not seen anything like it Tomas, could it be a cleaning problem since that's the direction the swab would travel in?
 
BouncyMelons said:
Not seen anything like it Tomas, could it be a cleaning problem since that's the direction the swab would travel in?
Click to expand...

Afraid not Ali mate, it's been cleaned many times and the lines are far similar to banding issues.
The NPS guys cleaned my sensor on Saturday and they didn't use swabs.

Here's a little info I just found, which leads me to believe that it can be common in certain circumstances:

http://support.nikontech.com/app/answers/detail/a_id/13872

Maybe it's not worth worrying about :shrug:
 
vertical banding
Click to expand...

Do you mean horizontal banding, Tomas? I can see stuff going from left to right?
 
Janice said:
Do you mean horizontal banding, Tomas? I can see stuff going from left to right?
Click to expand...

Deffo vertical mate, they're always vertical unless I switch to portrait orientation. ;)
Some of my mates can't see the lines at all but they are there, they don't always appear but as the Nikon links mentions:

'The digital imaging artifact commonly known as banding can, in specific and unusual conditions, such as extreme exposure and/or exposure compensation settings and high contrast scenes, become visible.

...and then this bit makes me think that maybe it's not worth worrying about:

'It is important to note that banding will generally be greatly exaggerated when an image is enlarged and viewed on a computer monitor. A useful printed image, even when enlarged to a size that relates to a substantially enlarged monitor image, will not exhibit the same banding (or for that matter, many other artifacts) that may be visible on a monitor. Therefore, artifacts that may be visible on a monitor often have very little practical correlation to the realistic use of an image file (e.g., an image viewed on a monitor in its entirety and enlarged prints).'
 
Good to know Tomas since I'm getting the same sensor! lol
 
Its quite easy to provoke a D3 or D700 into horizontal banding (ISO3200+ with a bright light source across an otherwise dark scene) in a horizontal orientation, but I've not come across a vertical banding situation in horizontal orientation.

I can't actually see them on my screen, but if you are seeing them your D3 needs service as this isn't the known horizontal / bright light issue / high ISO issue.
 
puddleduck said:
Its quite easy to provoke a D3 or D700 into horizontal banding (ISO3200+ with a bright light source across an otherwise dark scene) in a horizontal orientation, but I've not come across a vertical banding situation in horizontal orientation.

I can't actually see them on my screen, but if you are seeing them your D3 needs service as this isn't the known horizontal / bright light issue / high ISO issue.
Click to expand...

Ta mate :thumbs:
Can you see the vertical lines Andy?

tiler65 said:
I can see them..........horizontal too..........
Click to expand...

The only thing I can see on the horizontal side is like a kind of blotch here and there, it's nothing like the vertical bands which are all equally spaced and very precise.

Cheers for the link Tom :thumbs: I've not seen that kind of stuff in any of my pics though...
 
Horizontal here too....just turn the monitor backlight down and they leap out.

Bob
 
Tomas Whitehouse said:
Ta mate :thumbs:
Can you see the vertical lines Andy?



The only thing I can see on the horizontal side is like a kind of blotch here and there, it's nothing like the vertical bands which are all equally spaced and very precise.
Click to expand...

ah its like a spine going from left to right... the tiny bones go vertically off it for a short way.

so its a row of short verticals that stretch the whole width ... like a zip!! :thumbs:
 
There definitely seems to be something there mate. And with the price of your etch-a-sketch I think I'd want it to not be. Maybe worth blowing a section with banding up and cropping and sending that off to the printers to double check?
Incidentally, what was the 3s like? I've got a mate who's got two of them for a wee while and he's asked me round to play, but I'm scared I won't want to give one back!
 
There other 'blotches' but I put these down to tonal differences and pixellation from a 200% crop, rather than any issue to raise a concern...

20100126-rejj1giwhsnn4s78cn6gf532qh.jpg
 
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