Re: "speckling" v "staining " (was New Orleans/glut) SEE SCANS

Hi Mark,
Yes, I do see this, and I think it's a great idea; never mind that I was
momentarily confused about how the 21-step prints in tone so that you
can't see the numbers very well on the tonal steps. My point, perhaps
not made clearly enough, was that on your print on glutaraldehyde, the
white numbers don't print clear white but are occluded by pigment in the
same way that the numbers on BFK are occluded by pigment. The idea
that on the one paper, the occlusion is a function of exposure and on
the other, the pigment is a function of stain, simply doesn't work for
me.

I have never known gum to expose under the darkest areas of a film step
wedge; for me there is pure white on the paper for those areas. What's
being stated is that there is no area on any negative, even the parts
that are meant to print pure white, that won't print with some exposure,
in other words there's no way to get white other than to brush off some
of the "exposure" later. To me it makes a whole lot more sense to call
this stain, even if something about the size makes it easier to remove
than stain on a different paper/size combination.
Katharine

Ender100@aol.com wrote:
>
> Hi Katherine,
>
> They print both ways on this one.  This is the PDN 31 Step Tablet or
> Sensitivity Guide that I designed in order to make my life easier and
> make me smile like Bob.  Stouffers Industries produces it for me.
> The numbers print black on half and white on the other half because
> the border which contains the numbers reverses in the middle of the
> steptablet to give you a better comparison as the steps change in
> density. Thus the lighter steps have a "white border" and the darker
> half of the steps have a "Black Border".  Makes it easer to determine
> Dmax and Dmin visually in the stepsâ*”and it looks pretty.
>
> By the way, the line down the middle of the step tablet where you see
> two different printed densities on the same step is caused by lapping
> the step tablet with a piece of clear Pictorico film when determining
> the Standard Printing Time.
>
> Best Wishes and May The Speckle God Not Rein On Your Parade or
> Fabriano
>
> Mark Nelson
> Purchase the eBook & PDN System for Your Own Custom Digital Negative
> Workflow @
> Precision Digital Negatives
> PDN's Own 31-Step Tablet Now Availableâ*”produced by Stouffer
> Industries
> Coming Soonâ*”Curve Calculator II will let you choose your toes!
> www.MarkINelsonPhoto.com
>
> In a message dated 9/9/05 10:01:28 PM, kthayer@pacifier.com writes:
>
> Katharine Thayer wrote:
> >
> (I haven't seen one of these step
> > wedges, but I'm assuming that they work just like a
> 21-step: the numbers
> > should print white in areas of tone).
>
> Oops, that was a flat out brain misfunction. The numbers on
> a 21-step of
> course print full tone, not white.  sorry about that.
> Katharine
Received on Sat Sep 10 08:52:44 2005