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[filmscanners] Re: Cleaning LS2000 optic?



On 2/3/02 at 3:01 am, artistic-1@shaw.ca (Arthur Entlich) wrote:

> When you use the term "flare" do you mean that light areas near dark
> ones tend to be washed out around the edges, almost like a soft focus
> halo around the very brightest areas?
>
> If so, you've brought up an issue that has been discussed before in this
> group and the other scanner group without resolution.
>
> Since i never got a straight answer for the other people who discussed
> this (and I don't own an LS2000), I was wondering if this problem is
> relatively new, if it manifested over time, or if it was there since new?
>
> I have a suspicion, like you, that it is due to dirt or oils that got
> deposited on some of the optics causing this blooming, but others are
> suggesting it is an inherent CCD design issue.
>
> I can't answer how involved a cleaning is, but I would be interested if
> you can tell me if this problem is one which has developed over time.
>
>
> Art

This is something I've only noticed recently- I scanned some very contrasty 
(excessively) XP2 negatives and in the scan I could see brownish areas like a 
halo around the black of the subject's hair. Once I worked out that these were 
the lightest areas of the negative I realised this is probably flare- I'm just 
not used to seeing it in reverse.

Joe B.

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