Digital BW, The Print

Portra 400BW, at least, combines extremely high resolution and extremely
fine grain with high speed--practically the best of all worlds.  The
resolution isn't as high as Tech Pan, but it seems comparable to many ISO
100 conventional B&W films, I'd say.  In any case, it's a great combination
of speed, high resolution, and fine grain.  You have to like the "look" of
the film, which is extremely panchromatic and relatively low in contrast,
but if that suits you, it works very nicely.

One question I have is how long chromogenic negatives can last compared to
true silver negatives, but since I generally scan directly from film, it's
not a critical issue for me (but it might be for some photographers).

----- Original Message -----

From: "B. Alex Pettit Jr." <a_pettit_jr@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Thursday, May 29, 2003 13:18
Subject: [Digital BW] Re: Scanning B&W negatives for printing


> Hello David,
> Does this Replacement process decrease the resolution in the final
> image when compared to normal BW silver film ??
> Thanks,
> Alex
>
>
> >
> > In Chromagenic film the silver based image replaced during
> processing (C41) with 'dye clouds' ............
>
> > Regards
> > David Prakel
>

In a message dated 5/29/2003 4:33:12 AM Eastern Daylight Time, 
info@... writes:

> In Chromagenic film the silver based image replaced during processing (C41)
> with 'dye clouds' and so the software can distinguish more readily between
> the dust specks and the 'softer' less granular image on these films.
> 

that makes sense. i have only had one experience with C41 B+W
film, and had it developed at a local lab, and when i got it back, i
was surprised to see that instead of true B+W, it had more of a
Sepia tone to it. is this normal, or a mess up at the lab?

thanks!


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