On 1/11/14 21:19 : , usher99@xxxxxxx wrote:
>> almost the dead centre position on each image is a brilliant red spot
>> measuring four pixels square with a faint one or two pixel wide red
> line
>> trailing to the bottom of the image.
>
> Sounds like a hot or stuck pixel on the sensor at least in part. Not
> sure what the line is but the demosaicing will result in the cross
> pattern.
> On some Canyon cams using the manual sensor clean option from the menu
> seems to remap these. I have seen reports of getting he sensor warm
> with a long exposure will sometimes get rid of it. I think ACR now
> just eliminates them but in cam jpegs might still be an issue. I
> wonder if you reprocess the
> raw files with current converter, all the issues will vanish. No
> problem on OM though as any defective sensor is changed easily w/o
> sending back for servicing.
>
> Remap with sensor clean or advance lever, Mike
I had hot pixels like that in my E-1 before I read about pixel mapping.
Once I let 'er do the mapping, the hot pixels went away. Was really
irritated with myself for not discovering it sooner...
--
Paul Braun
Certified Music Junkie
Valparaiso, IN
"It's such a fine line between stupid, and clever." - David St. Hubbins
"Music washes from the soul the dust of everyday life" - Harlan Howard
--
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