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Old November 4th 09, 03:55 AM posted to rec.photo.digital
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Default Digital photo problem - equipment failure?

Here's Johnny wrote:
Hi all,

I am not a photographer (though very interested in photography!) but I
do fairly basic digital retouching for wedding customers. I have
received a few discs of photos from the same photographer a few times
now with the same problem.

About a quarter from the left border of a landscape image, a vertical,
single-pixel greenish line run through. I've zoomed in and can see a
small (maybe 2x2 pixel) white spot about 5 pixels from the top of the
image, and the green line runs vertically down from there, right to the
bottom of the image. This littel white spot looks like there's a "hole"
in the image, which is "leaking" the green line.

Can this learned forum please advise me as to why this keeps happening?

I have raised this previously with the photographer and he told me last
time it was down to a corrupted media card. That sounded wrong to me, as
an IT support pro - if the media card was corrupt, we would be having
other issues. (That's not to say he was being dishonest - he's not an IT
person.) He told me he ditched the faulty card, but here we are again. I
suspect he's mis-diagnosing the problem, and that ditching this data
card too will not fix the issue.

Could his explanation be right? I suspect it's a problem with his camera
and that he's giving me excuses to fob off having to spend money on it.
I'd be very grateful for advice, as I don't want to dismiss him if I'm
wrong. He tells me he took many more photos after the ones he took for
me, and none of them have this issue, so he reckons it's ot the camera.
Then again he never noticed this the first time, nor this time, until I
raised it with him.


Thanks for reading this!


Sometimes you can get weird lines or blockish areas from corrupted files
on (faulty) cards.
But from your description, I think he's got a more serious problem with
the sensor itself.