RE: REPLY: FROM NuArc was PPG Starphire Glass ( ?? Questioning My Data)

Is that the NuArc model? What lamp are they burning?

Eric Neilsen Photography
4101 Commerce Street, Suite 9
Dallas, TX 75226
214-827-8301
http://ericneilsenphotography.com
> -----Original Message-----
> From: Sandy King [mailto:sanking@clemson.edu]
> Sent: Saturday, November 19, 2005 1:22 PM
> To: alt-photo-process-l@sask.usask.ca
> Subject: Re: REPLY: FROM NuArc was PPG Starphire Glass ( ??
> Questioning My Data)
>
> The thickness of the glass on my NuArc 26-1k is 1/4". The
> tempered
> glass shield is 3/32".
>
> Sandy
>
> >DEAR ERIC,
> > I didn't ask thickness but I can measure it when I go to my
> >darkroom next
> >week.
> > CHEERS!
> > BOB
> >
> > Please check my website: http://www.bobkiss.com/
> >
> >-----Original Message-----
> >From: Eric Neilsen [mailto:e.neilsen@worldnet.att.net]
> >Sent: Saturday, November 19, 2005 1:57 PM
> >To: alt-photo-process-l@sask.usask.ca
> >Subject: RE: FROM NuArc was PPG Starphire Glass ( ??
> Questioning My Data)
> >
> >Bob, Did they tell you, or do you know how thick it is?
> >
> >Eric Neilsen Photography
> >4101 Commerce Street
> >Suite 9
> >Dallas, TX 75226
> >http://e.neilsen.home.att.net
> >http://ericneilsenphotography.com
> >
> >> -----Original Message-----
> >> From: BOB KISS [mailto:bobkiss@caribsurf.com]
> >> Sent: Saturday, November 19, 2005 10:03 AM
> >> To: alt-photo-process-l@sask.usask.ca
> >> Subject: FROM NuArc was PPG Starphire Glass ( ??
> Questioning My Data)
> >>
> >> DEAR LIST,
> >> I don't know if this is useful to anyone but I
> received a reply to a
> >> question I sent to NuArc Tech services. They stated that
> they use
> >> "standard" glass but make sure it is perfect, i.e. no
> bubbles or ripples
> >> in
> >> it.
> >> CHEERS!
> >> BOB
> >>
> >> Please check my website: http://www.bobkiss.com/
> >>
> >> -----Original Message-----
> >> From: Eric Neilsen [mailto:e.neilsen@worldnet.att.net]
> >> Sent: Thursday, November 17, 2005 11:37 PM
> >> To: alt-photo-process-l@sask.usask.ca
> >> Subject: PPG Starphire Glass ( ?? Questioning My Data)
> >>
> >> After last nights back and forth, I was indeed going to
> call PPG.
> >>
> >> This required all of 3 minutes and a short wait for a
> return call. I
> >> received a call back from Penny Bridges. She has since
> faxed to me data
> >> for
> >> both the Starphire glass and SOLARPHIRE glass. The thinnest
> that the
> >> Starphire is listed as being manufactured is 1/8" or 3.3mm
> and all the way
> >> up to 3/4. The data sheets do differ somewhat from those I
> received in
> >> 1992
> >> as one would expect; most businesses update their
> literature. I received
> >> separate sheets for 4mm and 8mm and this one combines the
> information and
> >> transmission data in 10nm increments and only shows
> transmission data for
> >> a
> >> glass with a thickness of 5.66mm. It does not show up on
> the available
> >> sizes
> >> but that is what is referred to in the chart.
> >>
> >> While it does not match my data, as one would expect from
> different
> >> thickness of glass, it does come darn close to the 4mm data
> that I have.
> >> It
> >> is not what I believe to be true as Sandy indicated in his
> email, but what
> >> I
> >> know to be true based on the manufactures data. Penny said
> that they have
> >> not changed it since they first starting making it but do
> offer a coating.
> >>
> >> It took very me little effort and would certainly have been
> something that
> >> I
> >> would have done if I were to include test information about
> a type glass
> >> in
> >> a book : ) But wait, that is what I DID back in 1992. It
> appears in my
> >> book
> >> on platinum printing. I don't site all the data. But do
> talk about why and
> >> when one might benefit from using it.
> >>
> >>
> >> This data also talks about the infrared quality of the
> glass. I have not
> >> studied gum like I have studied platinum/palladium
> printing. It may be
> >> that
> >> Judy's experience with Starphire has something to do with
> other
> >> characteristics of the glass that are not beneficial to the
> chemistry she
> >> used.
> >>
> >>
> >> At this moment, I can't lay my hands on them which does
> bother me. I took
> >> them out of my notes to make copies for some students and
> can't locate
> >> them.
> >> I do however, have the data for the 4mm which is what Sandy
> googled.
> >>
> >> I will however, be glad to post PDF's of the documents
> after I receive
> >> them
> >> in the mail. The faxes are OK, but I'd rather wait at least
> until I have a
> >> chance to print them with my higher quality printer. I am
> sure she'll fax
> >> them to you too Sandy.
> >>
> >> The PPG web site that I posted last night has their phone
> number. I
> > > suggest
> >> calling them.
> >>
> >>
> >>
> >>
> >> Eric Neilsen Photography
> >> 4101 Commerce Street, Suite 9
> >> Dallas, TX 75226
> >> 214-827-8301
> >> http://ericneilsenphotography.com
> >>
> >>
> >>
> >>
Received on Sat Nov 19 16:30:50 2005