Re: Re:Stouffer wedge (was VDB is "Brownprint" process?)

Hi

I wonder if using a "normal" step tablet (Stouffer) is really the way to go
when you are doing digital negative either with a printer or with an image
setter. My reasoning is that I assume one is trying edit the scanned image
on screen and then print a negative of this "final" image, yes there are
adjusting curve and others involved in the workflow but the essential is not
density it's pixel values and how they translate from screen to printer, to
the print (process dependent) and back to screen with a scan. Translating
pixel value to density equivalent is not needed IMHO and I would add, if you
make your own step tablet on the same material you would use to make your
negatives you are further reducing the number of variables to adjust. In
other word it would be simpler and less prone to errors of all kinds. With
this idea in mind I have made a step tablet with a value of only 5 as step
delta and a small continuous gradient adjacent to these steps. I understand
finding proper exposure may be a bit tricky but I could simply use a
"normal" step tablet side by side with my own and get the best of both
worlds sort of speak.

It just happens I'll try this approach later today for VDB.

Regards
Yves

----- Original Message -----
From: <pulpfic@sunshinecable.com>
To: <alt-photo-process-l@usask.ca>
Sent: Thursday, February 23, 2006 11:18 AM
Subject: Re:Stouffer wedge (was VDB is "Brownprint" process?)

> At 05:16 AM 2/23/06 -0800, Susan Huber wrote:
>
> >BTW; does one need a 21 step wedge for alternative processes and how does
> >one use it?
> >I went into the store yesterday and found out the Kodak step wedge costs
> >$144. US and the Stouffer wedge costs $5.80 US- a big difference in
price,
> >any difference in quality?
>
> Hi Susan,
>
> The Stouffer 21 step transmission wedge T2115 is excellent for our
> purposes, and since it is so inexpensive, you may want to have two or
three
> of them so you can do several side-by-side tests of different exposures at
> the same time.
>
> Take care,
> Randi
> --
> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
> Ms Randi DeLisle
> papermaker, bookbinder, publisher & printmaker
> pulp fictions & pulp fictions press
> Grand Forks BC Canada pulpfic@sunshinecable.com
> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
>
Received on Thu Feb 23 11:17:22 2006