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

Bob, If my data sheet is correct, You will receive very little by using
Starphire glass. There is very little light coming in the > 350nm. I will
send you a pdf of the SPD.

Eric Neilsen Photography
4101 Commerce Street, Suite 9
Dallas, TX 75226
214-827-8301
http://ericneilsenphotography.com

> -----Original Message-----
> From: BOB KISS [mailto:bobkiss@caribsurf.com]
> Sent: Saturday, November 19, 2005 8:38 PM
> To: alt-photo-process-l@sask.usask.ca
> Subject: RE: REPLY: FROM NuArc was PPG Starphire Glass ( ??
> Questioning My Data)
>
> DEAR ERIC,
> My bulb is the NP-80.
> 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 9:01 PM
> To: alt-photo-process-l@sask.usask.ca
> Subject: RE: REPLY: FROM NuArc was PPG Starphire Glass ( ??
> Questioning My
> Data)
>
> Sandy, I have the SPD for the HT121, GW 114, NP4/NP80, LY33,
> MH153, and NM
> 75 lamps. Model number than would be 26-1K.
>
> Bob, what lamp are you using? Or if you'd like I'll PDF you the
> SPD for your
> lamp if it is included in the list above.
>
> Is that a 10 4?
>
>
> Eric Neilsen Photography
> 4101 Commerce Street
> Suite 9
> Dallas, TX 75226
> http://e.neilsen.home.att.net
> http://ericneilsenphotography.com
>
> > -----Original Message-----
> > From: Sandy King [mailto:sanking@clemson.edu]
> > Sent: Saturday, November 19, 2005 4:50 PM
> > To: alt-photo-process-l@sask.usask.ca
> > Subject: RE: REPLY: FROM NuArc was PPG Starphire Glass ( ??
> Questioning My
> > Data)
> >
> > What do you mean by model? If you mean is the glass of the
> original
> > equipment on the NuArc 26-1k, I assume so, but can not be
> sure since
> > I purchased the unit used several years ago. The tempered
> glass is
> > replacement since the original was broken in shipment.
> >
> > NuArc sells a GA-114 mercury vapor bulb for the 16-1k. I am
> currently
> > using in the machine a USHIO metal halide lamp (see SPD in
> the
> > appendix on UV light in Dick Arentz' book). This light is not
> > recommend by NuArc, but works in my unit same as the mercury
> vapor
> > lamp. The SPD charts for the two lamps are virtually
> identical.
> >
> > Sandy
> >
> >
> >
> >
> >
> >
> >
> > >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 21:01:15 2005