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Digital BW, The Print

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Re: [Digital BW] Scanning B&W negatives for Printing

2003-05-29 by derek_c@cix.co.uk

These dust removal methods use an infrared scan along with the visible 
light channels. A dust particle is opaque to infrared and will be spotted 
out, whereas film features are transparent to infrared and are left.

So it ought to work on the chromogenic films, i.e. Tmax and HP5, as these 
work like colour film and the silver is replaced by dyes during 
processing.

The silver halide films won't work because the silver is still there and 
is opaque to infrared. So all the grain is removed, and hence so is all 
the image...

In article <bb2r1k+ucuj@...>, ayeo@... (fools_luv_company) 
wrote:

> Couple of issues which I hope someone can tell what to do:
> 1)The CanoscanFS4000 FARE (dustRemoval feature) cannot work on B&W
> negatives (the grains overloads it and it gives up). Is this true for
> all B&W negatives? Tmax- 100, HP5+, HP4+, Tri-X are what I tried.
> 2)I cannot get rid of the grains even in PS: filter/ dustRemoval would
> only take away my resolution and USM brings back the grains.
> 
> What's the best way to scan a B&W negative?
> 
> What's the best B&W negative to use for scanning?
>

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