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[APML] Wtd: Ha 4x5 filter

To: "astro photo" <astro-photo@seds.org>
Subject: [APML] Wtd: Ha 4x5 filter
From: "cosmos" <cosmos@big.net.au>
Date: Wed, 6 Feb 2002 06:10:32 +1000
Importance: Normal
Reply-To: astro-photo@seds.org
Sender: owner-astro-photo@seds.org

Hi..

Can anyone in the group direct me to where I can  get a 4x5" Ha filter? or
at least, a set of RGB filters.  My 225mm F4 astrograph is nearing
completion and knowing what is available, we can redesign the vacuum film
holder.

TIA..

Jim


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