Banding in D30 images :-(

[JCDoss]

Is my cmos sensor going bad or what?

There were reports many months ago about certain USM lense (I think the 24-85 might have been one... you'll have to do a search) which generated an "interference pattern" if they were running while photos were being taken (ie, in AI Servo mode).

This banding pattern looks very similar to those early pictures... try doing another test (and forgive me, I haven't read this entire thread... apologies if you've already tried this)...

Try switching to One-Shot mode, turn AF off on the lens, and take some photos. Then, switch AF on and take some similar photos. Then, switch AF to AIServo, and take some photos while AF is running. There should only be banding in the last group of photos.

What lens are you using? Try switching lenses and running the test again (if you have more than one lens, that is!).

If it turns out that the USM interference IS the problem, I don't think there's a fix other than to use One-Shot mode. I could be mistaken.

Keep us posted,
JCDoss

 

[Rob L]

The banding appeared in both images, with and without USM. I didn't use AI servo because the images in question were not taken in that mode. I ma using the 50mm 1.4 . Thanks for the input. My biggest problem is that this wasn't happening as of 2 weeks ago when I took shots at an indoor basketball game.

RobL

Is my cmos sensor going bad or what?

There were reports many months ago about certain USM lense (I think
the 24-85 might have been one... you'll have to do a search) which
generated an "interference pattern" if they were running while
photos were being taken (ie, in AI Servo mode).

This banding pattern looks very similar to those early pictures...
try doing another test (and forgive me, I haven't read this entire
thread... apologies if you've already tried this)...

Try switching to One-Shot mode, turn AF off on the lens, and take
some photos. Then, switch AF on and take some similar photos.
Then, switch AF to AIServo, and take some photos while AF is
running. There should only be banding in the last group of photos.

What lens are you using? Try switching lenses and running the test
again (if you have more than one lens, that is!).

If it turns out that the USM interference IS the problem, I don't
think there's a fix other than to use One-Shot mode. I could be
mistaken.

Keep us posted,
JCDoss

 

[JCDoss]

The banding appeared in both images, with and without USM. I didn't
use AI servo because the images in question were not taken in that
mode. I ma using the 50mm 1.4 . Thanks for the input. My biggest
problem is that this wasn't happening as of 2 weeks ago when I took
shots at an indoor basketball game.

If I were you, I'd get on the horn with Canon. I have the 50/1.4 (and just took some very nice photos with it this morning!) and have never seen such banding. Looks like your D30 is bad.

If you just purchased it, you should return it to your vendor for a replacement. Otherwise, get Canon Factory Service on the job.

JCDoss

 

[Jay Bean]

Rob,

I coincidentally noticed similar banding on 2 shots that I took today, except in both my shots I had a bright light source in the frame Both were indoor shots, one at 1/25 sec and the other at 1/15 sec, both with one shot AF & the el-cheapo 28-90mm lens. In one shot, there's the corner of a 100 watt table lamp in upper right corner of the frame. In the other shot, there's a window letting in sunlight in the uppre right corner of the frame. The banding is horizontal and looks very much like your samples. In other similar shots without a light source in the frame I cannot find any banding.

Jay

Is my cmos sensor going bad or what? Check these pics out. They
have been cropped 100% with no modifications at all. They where
converted using Breze Browser to 8bit Tiff. Sorry about the size of
these files. I wanted them to be as pure as possible.

2358.tif is shot at iso 1600

2361.tif is shot at iso 800

2368.tif is shot at iso 800

all shot with the 50 1.4 @ f2

http://www.pbase.com/robljr/inbox

Is it back to Canon with this camera or what?

RobL

 

[Jan Brittenson]

Get a D1H. It won't band at high ISO.

Is my cmos sensor going bad or what? Check these pics out. They
have been cropped 100% with no modifications at all. They where
converted using Breze Browser to 8bit Tiff. Sorry about the size of
these files. I wanted them to be as pure as possible.

2358.tif is shot at iso 1600

2361.tif is shot at iso 800

2368.tif is shot at iso 800

all shot with the 50 1.4 @ f2

http://www.pbase.com/robljr/inbox

Is it back to Canon with this camera or what?

RobL

 

[Chris Dodkin]

Rob,

My D30 died in a similar way, working one day then....YUCK!

Only thing was the camera had been subjected to very high temperatures walking round San Diego wildlife park.

Back to Canon under warranty, fixed in four days, no problems.

Now as good as new, and no different from my other D30.

Get on to Canon as soon as they get back after Christmas.

And it's not a common fault, but like all Canon gear (or any one elses for that matter) a very small percentage will fail over time.

That's what the warranty is for after all.

Chin up, everything will be ok.

Chris.

 

[Chris Dodkin]

Jay,

this is a common problem with digital sensors, and is even worse with CCD chips! (As used in 1D and D1)

Just be careful about edge of frame bright light sources, and use a hood all the time.

Chris.

I coincidentally noticed similar banding on 2 shots that I took
today, except in both my shots I had a bright light source in the
frame Both were indoor shots, one at 1/25 sec and the other at
1/15 sec, both with one shot AF & the el-cheapo 28-90mm lens. In
one shot, there's the corner of a 100 watt table lamp in upper
right corner of the frame. In the other shot, there's a window
letting in sunlight in the uppre right corner of the frame. The
banding is horizontal and looks very much like your samples. In
other similar shots without a light source in the frame I cannot
find any banding.

Jay

Is my cmos sensor going bad or what? Check these pics out. They
have been cropped 100% with no modifications at all. They where
converted using Breze Browser to 8bit Tiff. Sorry about the size of
these files. I wanted them to be as pure as possible.

2358.tif is shot at iso 1600

2361.tif is shot at iso 800

2368.tif is shot at iso 800

all shot with the 50 1.4 @ f2

http://www.pbase.com/robljr/inbox

Is it back to Canon with this camera or what?

RobL

 

[Chris Dodkin]

Looks much worse than yours, but you'll see some horizontal banding in some frames.

Didn't put me off the D30, it's a fantastic camera, and Canon were superb

 

[Rob L]

Thanks JC, I plan on it.

RobL

The banding appeared in both images, with and without USM. I didn't
use AI servo because the images in question were not taken in that
mode. I ma using the 50mm 1.4 . Thanks for the input. My biggest
problem is that this wasn't happening as of 2 weeks ago when I took
shots at an indoor basketball game.

If I were you, I'd get on the horn with Canon. I have the 50/1.4
(and just took some very nice photos with it this morning!) and
have never seen such banding. Looks like your D30 is bad.

If you just purchased it, you should return it to your vendor for a
replacement. Otherwise, get Canon Factory Service on the job.

JCDoss

 

[Rob L]

Thanks Jay, I'll check this out.

I coincidentally noticed similar banding on 2 shots that I took
today, except in both my shots I had a bright light source in the
frame Both were indoor shots, one at 1/25 sec and the other at
1/15 sec, both with one shot AF & the el-cheapo 28-90mm lens. In
one shot, there's the corner of a 100 watt table lamp in upper
right corner of the frame. In the other shot, there's a window
letting in sunlight in the uppre right corner of the frame. The
banding is horizontal and looks very much like your samples. In
other similar shots without a light source in the frame I cannot
find any banding.

Jay

Is my cmos sensor going bad or what? Check these pics out. They
have been cropped 100% with no modifications at all. They where
converted using Breze Browser to 8bit Tiff. Sorry about the size of
these files. I wanted them to be as pure as possible.

2358.tif is shot at iso 1600

2361.tif is shot at iso 800

2368.tif is shot at iso 800

all shot with the 50 1.4 @ f2

http://www.pbase.com/robljr/inbox

Is it back to Canon with this camera or what?

RobL

 

[Rob L]

Thanks for the encouragement Chris.

Rob,

My D30 died in a similar way, working one day then....YUCK!

Only thing was the camera had been subjected to very high
temperatures walking round San Diego wildlife park.

Back to Canon under warranty, fixed in four days, no problems.

Now as good as new, and no different from my other D30.

Get on to Canon as soon as they get back after Christmas.

And it's not a common fault, but like all Canon gear (or any one
elses for that matter) a very small percentage will fail over time.

That's what the warranty is for after all.

Chin up, everything will be ok.

Chris.

 

[Jim Grossman]

I thought this was just me or some mistake I was making or limitation of the camera. Or the amount of alcohol consumed at my brother's graduation that caused this



1/60 @ f5.6 @ 1600 ISO w/22-55 4-5.6 USM @ 40mm EV -1, Built-in Flash EV -2



You mean this may be because of a faulty camera that could be fixed or replaced under warranty? I want to know more about this.

I love this list and all the things I learn here.

 

[Jim Grossman]

Here's another example. And this is of a shot that I actually like and that I thought was fairly error free... until I really started looking.



1/8 @ f22 @ 200 ISO w/ 22-55 4-5.6 USM @ 40mm, EV -1.6, built-in flash +2



I checking images to see if this shows up with any of my other lens.

 

[Andrey Tverdokhleb]

For me it looks like interference. It may be caused by light sources (let me guess - fluorescent lamps?). I've seen such things too and wouldn't worry about, but better call support and ask them if this kind of lamp can cause such things.

Is my cmos sensor going bad or what? Check these pics out. They
have been cropped 100% with no modifications at all. They where
converted using Breze Browser to 8bit Tiff. Sorry about the size of
these files. I wanted them to be as pure as possible.

2358.tif is shot at iso 1600

2361.tif is shot at iso 800

2368.tif is shot at iso 800

all shot with the 50 1.4 @ f2

http://www.pbase.com/robljr/inbox

Is it back to Canon with this camera or what?

RobL

 

[Rob L]

My shots were taken with 1 incandecent (tungsten) lamp on, overhead.

Is my cmos sensor going bad or what? Check these pics out. They
have been cropped 100% with no modifications at all. They where
converted using Breze Browser to 8bit Tiff. Sorry about the size of
these files. I wanted them to be as pure as possible.

2358.tif is shot at iso 1600

2361.tif is shot at iso 800

2368.tif is shot at iso 800

all shot with the 50 1.4 @ f2

http://www.pbase.com/robljr/inbox

Is it back to Canon with this camera or what?

RobL

 

[Rob L]

Anyone having a similar problem with banding. Could you tell us how old your camera is?

Mine was purchased on 10-27-00. Thats over a year old of course, and I have to say that you who have younger D30's may want to contact canon before your warranty expires, just to have them do a check up or something preventative. Mine was fine at iso 1600 and 800 for almost 12 months exactly and now this. I'm calling canon today or tomorrow to see what they say.

Possible stuck with a senseless sensor,

RobL

 

[Andrey Tverdokhleb]

Was that lamp only light source in the room?

I have picture with exactly same banding and it was taken in room with few computer monitors on ISO800. Most intresting - I did few exactly same shots within few seconds and only one has this problem. Lens - canon 22-55 on 22mm. And my camera is brand new, I bought it just few weeks ago.

My shots were taken with 1 incandecent (tungsten) lamp on, overhead.

 

[Jay Bean]

What I also find strange is that the patterns on three sets of images (mine plus the two that have been posted) are almost identical. By that I mean they start at the upper left of the horizontal frame and go down about 1/4 to 1/3 and all the way across.

Is sunspot activity high right now? Doesn't it seem strange that a bunch of us noticed the same problem at almost the same time on cameras upon which we have not seen it before? Is there an external factor that could be affecting all of us? Christmas Tree Lights

BTW, I have now found the pattern on an image that did not have a light source in the frame (unlike 2 earlier images that did). I'm going to go back to some old images and look at those, such as the ones I shot a while back and pushed to 6400 or some of my earlier black image shots. I think I would have noticed this had it been there, though.

Anyone having a similar problem with banding. Could you tell us how
old your camera is?

Mine was purchased on 10-27-00. Thats over a year old of course,
and I have to say that you who have younger D30's may want to
contact canon before your warranty expires, just to have them do a
check up or something preventative. Mine was fine at iso 1600 and
800 for almost 12 months exactly and now this. I'm calling canon
today or tomorrow to see what they say.

Possible stuck with a senseless sensor,

RobL

 

[Jay Bean]

I have a hypothesis. I just turned on CF 1 (Long Exposure Noise Reduction) for the first time yesterday, then I noticed the banding for the first time. Could they be related? Rob, how do you normally shoot? I'm going to run some test and see what happens.

Is my cmos sensor going bad or what? Check these pics out. They
have been cropped 100% with no modifications at all. They where
converted using Breze Browser to 8bit Tiff. Sorry about the size of
these files. I wanted them to be as pure as possible.

2358.tif is shot at iso 1600

2361.tif is shot at iso 800

2368.tif is shot at iso 800

all shot with the 50 1.4 @ f2

http://www.pbase.com/robljr/inbox

Is it back to Canon with this camera or what?

RobL

 

[OU_WxGuesser]

Looking at the originals, I don't notice anything. Going out of the way to find error and then proclaiming there is error.... If you don't notice it in the original...... who cares? In any electronics if you go out of way enough your probably going to find something.

Aaron------------------------------------------------------------------Aaron Kennedy http://students.ou.edu/K/Aaron.D.Kennedy-1/-----------------------------------------------------------------