RE: [APML] Data Sheets

["Chris Schur" <cschur@therim.com>]

Phillip, I also tested some "Centuria 400"  in addition to the "super
Centuria 400" and got exactly the same results. Its the same film as far as
I can tell from actual sky tests.


Chris

-----Original Message-----
From: astro-photo-bounces@seds.org
[mailto:astro-photo-bounces@seds.org]On Behalf Of Philip Perkins
Sent: Wednesday, June 30, 2004 3:49 PM
To: Discussion of Film Astrophotography
Subject: Re: [APML] Data Sheets


Speaking of data sheets, I have the one for the original Konica Centuria
400 and is shows excellent OIII response.  I thought Chris Schur's results
with the Super version showed good OIII response (especially the Lagoon) so
I assumed the response curve was the same.  However just to be sure I
downloaded the data sheet for Centuria Super and saw that the OIII response
is quite different - it has poor OIII crossover with too much green and
hardly any blue - much like a typical Kodak OIII response.

I am a bit mystified by this because Chris's results seemed to match the
response of the original data sheet.  I am wondering if there might be
different versions of this film, with some matching the original response
curve?

--Philip
Philip Perkins
<pgp@astrocruise.com>
Wiltshire UK & Luberon France

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