[APML] Sources for R64 82mm filter?

["Roland Roberts" <roland@astrofoto.org>]

I've been looking for a cheap filter to use as an H-alpha filter for doing
some photography within the confines of my home town, Brooklyn :-|

I have a Lumicon "H-alpha" filter, 58mm, which works for my 35mm SLRs, but
I need an 82mm for my Pentax 67.  Lumicon does sell one, it's not
currently listed on their web site, and I need to call to follow up their
email to get the price, but Hands On Optics lists it at $169.  By
comparison, Hutech lists a Kenko 77mm R64 at $61.50.

I've found technical documention on the filter from Hoya, and it looks
like it is a common enough sharp cut filter that everyone has one, but the
size is a problem.  Anyone know a source for an R64 filter in larger
sizes?

Thanks,

roland
-- 
                       PGP Key ID: 66 BC 3B CD
Roland B. Roberts, PhD                             RL Enterprises
roland@rlenter.com                            6818 Madeline Court
roland@astrofoto.org                           Brooklyn, NY 11220



_______________________________________________
Astro-Photo mailing list
Astro-Photo@seds.org
http://seds.org/mailman/listinfo/astro-photo