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TL350 banding question

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resjudicata

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Bought a TL350 yesterday for my wife as an easy to use P&S in automatic ("Smart Auto") mode. At a museum today two pictures had horizontal "bands" like in the following image: three bands per image, misaligned, with what appears to be a different white balance in each. Firmware was updated to the latest version, and many of the pictures were taken under similar conditions (only 2 out of about 50 were like this). Thoughts on why this happened and how to avoid it?



 
I'll check another card (I used an 8gb, class 6 Transcend), but I don't know if she'll shoot under the same conditions any time soon.
 
It's a jpg bit corruption. It could be either your card or something wrong with the way the camera writes to the card. I certainly hope it's just the card though. AFAIK there are some software programs that can fix this but they're not free. If anyone knows of a good free one please post it here.
 
Thanks for posting this problem, I've just bought a WB2000 and had a problem in panorama mode, about a third of one end would have a banding problem with difference exposure, it could have been a white balance problem but there was a distinct line - it's not good in a new camera.

It happened on over 50% of my panorama shots so I am waiting for an exchange camera to be delivered.

Good luck
Brendale
 
Let me know if the new camera works out. I hadn't heard of this problem before, but when the banding appeared in more than one shot I thought it might be a camera issue, not a card issue.
 
It may be a camera problem (then you will have to exchange the camera) or it may be due to the SD card. I also observed this pehnomenon with a Panasonic camera earlier, until I realized that I had to more often format the card, not just delete the files after transfer. Since then, I never again encountered this problem.
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Why would you think that ? If it's a card issue, it shouldn't matter that it appears once or more often, still the same card with the same issue no ?

The only way to rule in/out the camera is to try a card that is known not to have issues in another similar camera.
resjudicata said:
Let me know if the new camera works out. I hadn't heard of this problem before, but when the banding appeared in more than one shot I thought it might be a camera issue, not a card issue.
Click to expand...
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Roger
 
I had the same problem. Solved it by reformatting my SDHC card via the camera. Have seen this solution on internet somewhere. Hope this helps.
 
I am still having the same banding problem in panorama mode with my newly exchanged WB2000, it's even worse than the original one. I've formatted the card in camera and sweep slow and steady, it's very annoying as this is the feature I bought the camera for.

It's always at one/or both ends of the photos.

Any ideas?

Thanks
Brendale















 
Brendale said:
I am still having the same banding problem in panorama mode with my newly exchanged WB2000, it's even worse than the original one. I've formatted the card in camera and sweep slow and steady, it's very annoying as this is the feature I bought the camera for.

It's always at one/or both ends of the photos.
Click to expand...
It looks like a blending problem, can you lock the exposure for the duration of the sweep so that the joined segments have the same exposure?

Brian
 
I've done a bit more playing and noticed the problem is always at the beginning end of the sweep in the pics.

Cheers
Brendale
 
Let’s see if we understand your process correctly. You take a picture. Re-position the camera and take another shot. Re-position the camera for the last and final shot (or more if the panorama scene demands it.) You are then blending the shots to create the panoramic vista?
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No, it is a sweep panorama function like the Sony cameras. You just press the shutter button and slowly move the camera from one direction to the other. It's all done in-camera, it's a great function if it only worked properly!

Cheers
Brendale
 
Seems to me like the banding is not just a mismatch in the exposure brightness. It almost seems like a focus issue, but it may not be that either.

My guess is the camera is for some reason using excessive multiple shots overlapping the same area. Can you test this by taking a long "panorama" shot, except instead of sweeping the camera across a wide arc, you barely sweep the camera at all? Does the result look muddy or blurred/improper exposure throughout?

Maybe in the beginning or the end of the arc, maybe you are moving the camera slowly at those parts so the shots stack up and overlap in that area and when the camera blends the extra shots for that portion of the sweep/arc, the corresponding portion of the panorama looks muddy (but also happens to look like banding) in the area with excessive overlaps.

This is all speculation, sorry if it's totally off-base but I'm trying to think outside the box. Maybe your sweeping motion is too varying, whereas the camera prefers a more constant sweeping motion (maybe try starting the sweeping motion before you hit the shutter).
 


















Thanks everyone for your input and help, maybe there is a problem with my technique with the panorama (new to it) but I use the same constant speed when sweeping and very steady. The camera willl actually stop taking the shot if you're too slow, and the same if you're too quick.

Here are a few more, the first and last are OK but even the short sweeps are a mess.. Tomorrow I will start the sweep before I press the button and see what happens.

Cheers
Brendale
 
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