Forwarded without permission from the Royal Astronomical Society of Canada mailing list:
-------- Original Message --------
Subject: [RASCals] New film replaces TP 2415 (fwd)
Date: Fri, 10 Jul 2009 07:12:40 -0300 (ADT)
From: Michael Boschat <aa063@xxxxxxxxxxxxxx>
Morning all:
From solar observers group....
I just tested a new film - ROLLEI ATP "VI" described as
(ROLLEI ATP 1.1 on the web) for solar H-alpha. Its a
really nice film, very high resolution, with anti-newton
coating, sensitivity is higher in the red end than Tech
Pan was (370 up to 700nm). Its much easier to process
(no stop bath and twice diluted normal fix conc.). The film
is more transparent than tech pan which makes for clearer
scanning capability. Its about $7.00 per roll of 36 in Canada
and is now plentiful. It is in 35 mm format. Has anyone else tried it?
Clear skies
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Michael Boschat
Halifax Center - Royal Astronomical Society of Canada
Astronomy page: http://www.chebucto.ns.ca/~aa063
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