[filmscanners] RE: Black and white scans on LS4000 ED andotherissues

["Austin Franklin" <darkroom@ix.netcom.com>]

> > I remain disappointed that they state you cannot scan black and
> white as RGB
> > positive, even intimating that one would be manipulating a
> lesser quality
> > scan in Photoshop than if the scan had been done as a
> monochrome scan.  That
>
> What they say is definitely not true. The scanner allows you to set
> the exposures separately and read out the raw CCD data, so all
> limitations they might be thinking of arise from the design of the
> scan software.

Hi Andras and Simon,

ALL CCD scanners that I know of, with the exception noted in the next
sentence, scan EVERYTHING in RGB, whether you select B&W/Monochrome or not.
The ONLY CCD scanner(s) I know of that scan B&W AS B&W, using a single ND
filter, is the Leafscan 45 and the Leafscan 35.

So, the point is, you ARE scanning the B&W film in RGB, just the scanner has
it's own "mix" of RGB that it uses to convert internal to the scanner and
then give you the monochrome image.  EXACT same thing that PS does when you
convert from RGB to B&W, but in PS, I believe you can change the "mix" of R
G and B.  I REALLY wish scanner manufacturers would make their
scanner/software so that you could change the mix there too...

Personally, I believe the Leaf gives much better B&W tonality than any other
CCD scanner I've ever used or seen.

Austin

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