On 4/9/06, Garth Wood <garth@xxxxxxxxxxxxxxx> wrote:
> At 11:52 AM 09/04/2006, Joel Wilcox wrote:
>
> [snip]
>
> >I've got dust from my recent trip to Arizona and Utah on the mirror and/or
> >screen of my E-1 so thick it looks like the Hawaiian archipeligo in
> >the viewfinder and I don't see any evidence of dust on the sensor at
> >all! I just stepped out back and shot the western sky at f16:
> >
> >http://myweb.uiowa.edu/jfwilcox/E-1_dustatf16.jpg
> >
> >Image shot at HG quality mode, ISO 100, saved for web at 50% quality
> >jpg. I don't see a problem. Did I do something wrong?
>
>
> Joel, *assuming* that you do indeed have dust on your sensor and that
> something about the way the image was captured or processed has
> "masked" it somehow, the only thing I can think of would be saving
> the resulting JPEG at 50% quality -- I've very occasionally run into
> some strange artifacts at this high a compression level, including
> seeing small dust specks "disappear" by being averaged-out or
> otherwise obscured by the artifacting process.
>
> Nevertheless, I can't seem to see any dust specks either.
>
>
> Garth
I gave it a good looking-over at full size. Crunching it down
certainly didn't improve it.
Here's the darn thing at full strength:
http://myweb.uiowa.edu/jfwilcox/_4094528.jpg
It's over 1MB, so watch out.
Joel W.
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