B&W Neg scanning was dynamic range
B&W Neg scanning was dynamic range
- Subject: B&W Neg scanning was dynamic range
- From: "Phil lippincott" <email@hidden>
- Date: Mon, 17 May 2004 13:59:18 -0700
>
Hi Simon,
>
>
Black and White negative film scanning can be extremely successful if
the
>
film is density characterized to the scanner and therefore all of the film
>
dye layers are represented by alternate scanner channels. When this is
done
>
correctly then the tonality of the negative film is accurately and
>
completely captured.
>
You see a lot of "Graphic Art's" not photo experienced people do not
>
realize that Black and White photo paper and negative films are not made
to
>
be forced neutral or one channel. Also they don't realize that there
>
unlimited shades of tonality in the BW film negative. For instance look
at
>
any traditional analogue BW photo print or Ilford, Kodak, Agfa or Fuji BW
>
negative under a densitometer. So the ideal BW film scan capture process
>
is exactly the same as the photo paper and it needs to retain all of the
>
tonality of the original.
>
The AZTEK Digital PhotoLab software does this with density management
>
characterizations and artificial intelligence control of the scanners.
>
There are numerous service bureaus here in the States offering BW negative
>
film services with our products. Also there is a growing large quantity
of
>
high-end fine art BW photographers with their own scanners and Epson
Inkjet
>
printers using our scanners and software for Scan-to-Print. Some even use
>
the Jon Coons BW ink sets. Others use the Ultra Chrome.
>
If you would like me to put you in contact with some of these people,
>
please better describe exactly what kind of person or firm and I will be
>
happy to give you some contacts.
>
>
Best Regards,
>
Phil Lippincott
>
>
AZTEK, Inc.
>
www.aztek.com
>
1-800-GRAPH-55
>
>
----- Original Message -----
>
From: "Simon Olding" <email@hidden>
>
To: "Phil lippincott" <email@hidden>
>
Sent: Thursday, May 13, 2004 10:54 PM
>
Subject: B&W Neg scanning was: Dynamic Range testing
>
>
>
>
>
> Although this is slightly off topic, can I ask about scanning B&W neg
>
> film.
>
> The thread about silver versus carbon step wedges raises an issue about
>
> scanning negs. I have always had "noise" issues with scanning negs. Is
>
> this related to the callier effect and are there any recommended
>
> methods for neg scanning?
>
>
>
> I would like to eventually convert from my darkroom silver fine prints
>
> to inkjet prints and would like to scan negs direct rather than scan
>
> prints. I also feel that since the dynamic range of a scanner is
>
> usually much higher than that of a silver printing paper (requiring a
>
> density input range of between 0.9-1.4 OD) that a neg could be
>
> processed harder to improve local contrast.
>
>
>
> if anyone out there is doing this kind of work, they could reply off
>
> list.
>
>
>
> Thanks
>
> Simon
>
>
>
> Simon Olding
>
> ICC Imagetec
>
> email@hidden
>
> www.iccimagetec.com.au
>
> (03) 6223 7882
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