Re: Was Re: question on sizing, now fish eyes
Gee, I didn't mean to disrupt your day Katharine, but then, I often do
things before showering, and sometime the whole day even goes by before
I get dressed :) The reference to the bubbling was buried inside another
thread about "how many layers of gum"...
Anyway, the second image looks like what I was getting...big bubbly
spots. I get better results now when I brush the gum mixture on thinner
(not a thinner mixture, but less on the brush). I really think a lot of
my mistakes are just a matter of getting the feel of things.
And now I understand why Payne's Gray looks so blue...duh, it has blue
in it. Thanks!
Katharine Thayer wrote:
Laura, I can't find the other thread you referred to so maybe it was
under a title that wouldn't identify it as being about a coating problem
with Payne's grey. However, since "Payne's grey" isn't a pigment in and
of itself, but is simply a convenience mixture of some blue (different
manufacturers use different blues) and lamp black, it's unlikely that it
would behave in some way that would be linkable to the color name
When I got your post, I thought "good timing," because I've been
planning to get back to my troubleshooting page, which I've been
promising for a couple of years. So I went downstairs even before I'd
had my shower, to make fisheyes to show you. But as I said, I seldom
encounter fisheyes, so it wasn't such a simple job to make them happen.
The "fisheyes" I occasionally get (on Arches bright white sized with
gelatin-glyoxal) are very small, almost like pinpricks, so maybe they
really don't qualify as fisheyes, except that they appear in the same
way as larger fisheyes, as a visible lateral retraction of the emulsion
from areas of the paper. Anyway, this morning I couldn't make that
happen on Arches bright white, so I pulled a piece out of my stack of
different kinds of paper sized with different stuff; this one happened
to be Lana sized with gelatin and glutaraldehyde, and got the kind of
fisheyes I'm talking about; I've scanned that for you.
I also tried to make the bigger kind of fisheyes, the ones that open up
to 1/4" or 1/2" wide and really look like fisheyes, by coating on
Yupo, but was unsuccessful until I added a little water to the mix, and
then got some of these fisheyes. I took a picture of this with my cheap
digital point and shoot; it's blurry but I hope you can make it out.
I'd be interested to know if people mean one or the other, or something
different, when they refer to "fisheyes."
In both cases I left the fisheyes as they first appeared rather than
attempting to brush them out, so as to not obscure what they look like
in their undisturbed manifestation.
That page is temporary, just uploaded for sake of this particular
On Sep 10, 2008, at 3:01 AM, Laura Valentino wrote:
Does anyone have a scan of this "fisheye" effect they could share? A
couple of weeks ago I wrote about a "bubbling" with payne's gray, so I
also wondered if it was something related to the pigment. Or it
could've been because it was a different brand of paint, because that
was the only variable that changed from the other colors I was trying.
I washed the layer all away (after learning here I could do that) so I
can't share the effect I got.
Also, because I get it consistently with magenta and not
yellow I think it must have some relation with the coating
but maybe not the gum, maybe the pigment or who knows. I'll
watch it for a while and see if I can determine any other
factor that might play into it.