Digital BW, The Print

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?

>>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?<<

Not exactly.  It will not work on the classic B/W films like "Tmax- 100,
HP5+, HP4+, Tri-X" but it will work on the newer C41 b/w films like Ilford
XP2.

In a message dated 5/28/2003 1:46:04 PM Eastern Daylight Time, 
dougfisher@... writes:

> Not exactly.  It will not work on the classic B/W films like "Tmax- 100,
> HP5+, HP4+, Tri-X" but it will work on the newer C41 b/w films like Ilford
> XP2.
> 

does anyone know the reason why it won't work on films other than 
C-41 process films?

i have scanned a few B+W negatives on my Epson 3200, and all but
one seemed to work fine with the Dust/Scratch Filter in SilverFast

i plan on doing more testing before i reach a verdict though :)


[Non-text portions of this message have been removed]

Because, like the Digital ICE and things like that, it sees the raised area
of grain as dust.  Since the silver is removed in color processes, the
emulsion lies flatter when dry.

Seth

=-----Original Message-----
=From: DigitalLipothymy@... [mailto:DigitalLipothymy@...] 
=Sent: Wednesday, 28 May, 2003 16:52
=To: DigitalBlackandWhiteThePrint@yahoogroups.com
=Subject: Re: [Digital BW] Scanning B&W negatives for Printing
=
=
=In a message dated 5/28/2003 1:46:04 PM Eastern Daylight Time, 
=dougfisher@... writes:
=
=> Not exactly.  It will not work on the classic B/W films like "Tmax- 
=> 100,
=> HP5+, HP4+, Tri-X" but it will work on the newer C41 b/w films like 
=> HP5+Ilford
=> XP2.
=> 
=
=does anyone know the reason why it won't work on films other than 
=C-41 process films?
=
=i have scanned a few B+W negatives on my Epson 3200, and all 
=but one seemed to work fine with the Dust/Scratch Filter in SilverFast
=
=i plan on doing more testing before i reach a verdict though :)
=
=
=[Non-text portions of this message have been removed]
=
=
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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?
>

In a message dated 5/29/2003 7:55:59 PM Eastern Daylight Time, 
derek_c@... writes:

> 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.
> 

i am probably wrong, but i *think* that HP5 is a standard B+W film, and not
a C-41 process film. that is how i have been developing it in my dark room 
anyway :)

-ka


[Non-text portions of this message have been removed]

--- DigitalLipothymy@... wrote:
> In a message dated 5/29/2003 7:55:59 PM Eastern
> Daylight Time, 
> derek_c@... writes:
> 
> > 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.
> > 
> 
> i am probably wrong, but i *think* that HP5 is a
> standard B+W film, and not
> a C-41 process film. that is how i have been
> developing it in my dark room 
> anyway :)
> 
> -ka
> 
that is true, neither HP5 nor TMAX are chromogenic
-je

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