Re: [APML] Konica Centuria 200 Film

["Keith Geary" <keithg1@eircom.net>]

Thanks for the reply and advice Geoff, I did'nt know anything much about
this film anyway, but i'll still give it a go soon
when the weather clears up, just to show how it performs.
Keith...

----- Original Message -----
From: "Geoff Powers" <astropix@att.net>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Tuesday, June 15, 2004 8:19 PM
Subject: Re: [APML] Konica Centuria 200 Film


> Hey Keith...
>
>      The spectral response curves for this film are much different than
it's faster cousins. It looks strong in blue, but is completely blind in
OIII and nearly blind in Ha wavelengths. Check it here:
>
>
http://konicaminolta.com/products/consumer/photo/pdfe/pdf/csuper200.pdf
>
>      Given this, combined with the still unknown reciprocity
characteristics of any of these films, I'd have to say the 200 ISO would be
a non-starter for deep-sky astro. (*maybe* usable for the Pleiades, but not
much else) Spend your precious dark time with something better suited for
the task... IMHO.
>
>  Best...   :o)
>
>
> --
> Geoff
>
> http://home.att.net/~astropix/
>
>
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