[Leica] Re: Kodak BW400CN

[abridge at gmail.com (Adam Bridge)]

Thanks, Don.

So, do these film have different responses than say a 400 ASA color
film? If I'm going to only want a B&W image is there any reason to
simply just shoot color and then manipulate in photoshop? Or do I get
a gain in .... something .... by sticking to the black and white?

I like TCN a lot, especially for portraiture (when I don't want grain
that is), but I'm wondering if I shouldn't just chose a color negative
film instead.

adam

On Mon, 19 Jul 2004 20:48:35 -0400, Don Dory <dorysrus@mindspring.com> wrote:
> Adam,
> You don't really push or pull C-41 with these chromagenic films.
> Basically you are trusting to the really long characteristic curve of
> these films.  At the low ISO settings you find more of the image from
> the shadows, lose detail in the highlights, and reduce contrast. At the
> high ISO settings you lose shadow detail and gain more detail in the
> highlights.
> 
> The chemistry of C-41 films is fascinating.  Each color layer is at
> least two; one of high sensitivity and one of low sensitivity.  Within
> each layer is a chemical restrainer that doesn't let the density build
> up too fast or too far.  The restrainers are why four stops overexposed
> can still produce flat but reasonable prints.
> 
> Don
> dorysrus@mindspring.com
> 
> 
> 
> -----Original Message-----
> From: lug-bounces+dorysrus=mindspring.com@leica-users.org
> [mailto:lug-bounces+dorysrus=mindspring.com@leica-users.org] On Behalf
> Of Adam Bridge
> Sent: Monday, July 19, 2004 7:29 PM
> To: Leica Users Group
> Subject: Re: [Leica] Re: Kodak BW400CN
> 
> So how do you ask to have it processed if you're going to shoot at 50
> which is pulling the film 3 stops. Do you then get an incredibly thin
> negative that's still scannable?
> 
> I'm just curious because I haven't liked the resuilts when I shoot TCN
> at 200 wtih normal processing and I don't want to process it for 200
> (read I'm too damn cheap and don't like to wait the extra time it
> takes.)
> 
> Thanks for any thoughts. It's good to know that there is SOMETHING
> about this new BW400CN that people are liking.
> 
> adam
> 
> On Mon, 19 Jul 2004 17:14:10 -0700, JCB <jcb@visualimpressions.com>
> wrote:
> > At 04:55 PM 7/19/2004, Oliver wrote:
> >
> > >When I dropped off some color negative film at the New Lab today I
> asked
> > >whether they had formed an opinion on BW400CN, the successor to
> TCN400. I
> > >was told that the new film is sharper and has better shadow detail.
> The
> > >reply to my question whether the new film should also be rated at ISO
> 200
> > >was, "most pros who want a little extra snap in the prints expose it
> that
> > >way."
> > >Oliver Bryk
> > >PS www.newlab.com is the leading pro color lab in San Francisco.
> >
> >
> > Like T400CN, BW400CN has a huge latitude. Kodak states ASA 50 thru 800
> can
> > be used with confidence with normal processing. Of course, what you
> take
> > your light meter reading of (its reflectance) will make the biggest
> > difference in your results regardless of the ASA you use.
> >
> > Even though it is called "400", most folks find it marvelous at 200.
> As you
> > probably do. I have used it at both ends, 50 to 800, and have not been
> > disappointed.
> >
> > JB
> >
> > PS... www.calypsoinc.com (Calypso Imaging) is the leading pro
> color/B&W lab
> > in the south bay.
> >
> >
> >
> >
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
> >
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