I also found flare problem on the 4000ED, between very dark and very bright
scene you will found it, just like your sample. I'm pretty sure it is lens
problem (I mean the lens inside the scanner).
C.H.Ling
----- Original Message -----
From: "Wayne S" <om4t@xxxxxxxx>
> Sorry for the misinterpretation on sharpening. I was up too late,
> blurry eyed and hadn't read all the posts.
>
> As to scanner flare (bloom), this is a somewhat known problem. The scan
> I was attempting was under-exposed so I had the gain cranked up, which
> I believe in the Nikon's means higher LED output. I'm not sure if it
> comes from the scanner optics or the fact that if you have a very
> bright area right next to a darker shadow area, the CCD may bleed
> through causing bloom when you over saturate part of the CCD. I suspect
> if it is the CCD it would occur in the linear direction of the CCD
> array, while if it were scanner optics, it would be unidirectional?
>
> Here is a crop of the horse's head with bloom/flare (LS-4000ED):
> http://www.zuik.net/om/horse_crop_rhp_0902_9b.jpg
>
> At first I thought the problem was the film, but turns out to be the
> scanner. The direction of the scanner array in this case would be the
> worst for CCD bleeding, but I would not rule out the optics.
>
> for reference, the overall shot is:
> http://www.zuik.net/om/horse_rhp_0902_9b.jpg
>
> I've heard that the Minolta scan multi pro is better than the Nikon
> scanners in this regard. There is some discussion of the 'flare' at
> http://www.imaging-resource.com/SCAN/DSMP/DSMPICS.HTM
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