Re: [APML] RG200 Alert

[Bruce Glagola <glagola@aps.anl.gov>]

Joe,

Thanks for posting the curve comparisons.  I shot some Royal Gold 400
several weeks ago and it had virtually no red response.  In fact, all
of M20 came out purple at best and NGC7000 barely was there.  I had
not heard about the change and was quite puzzled by the results. 
Another "improvement" comes up to bite us.  Last year this film was
great.

Bruce

Joe Pedit wrote:
> 
>  > Michael Greger wrote:
> 
> > Kodak apparently announced a change in this film a few months back.
> 
> > westergren wrote:
> > Has anyone else observed or sensed a change in RG200? Don
> 
> Thanks for the warning.  The spectral sensitivity curves for Royal Gold
> 200 and 400 have changed dramatically.  Old and new curves are compared at:
> http://www.unc.edu/~pedit/royalgold0200oldnew.gi
> http://www.unc.edu/~pedit/royalgold0400oldnew.gif
> The improved formulations are less sensitive at 656 nm.  :(
> Joe
> 
> --  APML Archives at <http://astro.umsystem.edu/apml/>  ---
>              Unsubscribe at <majordomo@seds.org>
begin:vcard 
n:Glagola;Bruce
tel;pager:4-9797
tel;fax:630/252-1664
tel;work:630/252-9797
x-mozilla-html:FALSE
org:APS Operations Division
version:2.1
email;internet:glagola@aps.anl.gov
title:User Safety Coordinator
adr;quoted-printable:;;Argonne National Laboratory=0D=0ABuilding 431Z=0D=0A9700 S. Cass Ave;Argonne;IL;60544;USA
x-mozilla-cpt:;-25592
fn:Bruce Glagola
end:vcard