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Old November 5th 09, 03:32 AM posted to rec.photo.digital
Here's Johnny
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Posts: 7
Default Digital photo problem - equipment failure?

van dark wrote:
which camera type, please?

Here's Johnny napsal(a):

"Me" wrote in message
...
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.


Thanks for your reply - I suspect much the same myself. However, he
tells me he has covered other events since that wedding, and there
were no problems. I can't verify this, though.


Thanks very much for your reply - I think it is determined that it's a hot
pixel on the sensor. www.pixelfixer.org shows the problem perfectly - mine
looks exactly the same. News being shared with photog ASAP!