Re: [Utah-astronomy] Hydrogen-beta filters
Chuck, I have been reading a lot of good things about filters from this company mostly for AstroPhotography, but I bet the Hb filter will be a good quality filter for visual work as well. Have a look see. http://www.astronomik.com/en/astronomik_uhc_filter.html If you find anything strange, I would like to know. Jim
Chuck, I have both a 2" Astronomik UHC filter and a 1.25" Lumicon UHC filter. I bought the Astronomik several years ago so things may have changed, but the Lumicon filter is clearly superior. Clear Skies, Don -----Original Message----- From: utah-astronomy-bounces@mailman.xmission.com [mailto:utah-astronomy-bounces@mailman.xmission.com] On Behalf Of Jim Gibson Sent: Saturday, April 11, 2009 3:21 PM To: Utah Astronomy Subject: Re: [Utah-astronomy] Hydrogen-beta filters Chuck, I have been reading a lot of good things about filters from this company mostly for AstroPhotography, but I bet the Hb filter will be a good quality filter for visual work as well. Have a look see. http://www.astronomik.com/en/astronomik_uhc_filter.html If you find anything strange, I would like to know. Jim _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php Visit the Wiki: http://www.utahastronomy.com
Thanks, Don. I like my old Lumicon filters best, too. Some modern filter purveyors don't include graphed bandpass data for the individual filter. Lumicon always did. On Mon, Apr 13, 2009 at 8:57 AM, Don J. Colton <djcolton@piol.com> wrote:
Chuck,
I have both a 2" Astronomik UHC filter and a 1.25" Lumicon UHC filter. I bought the Astronomik several years ago so things may have changed, but the Lumicon filter is clearly superior.
Thanks, Don. I like my old Lumicon filters best, too. Some modern filter purveyors don't include graphed bandpass data for the individual filter. Lumicon always did. On Mon, Apr 13, 2009 at 8:57 AM, Don J. Colton <djcolton@piol.com> wrote:
Chuck,
I have both a 2" Astronomik UHC filter and a 1.25" Lumicon UHC filter. I bought the Astronomik several years ago so things may have changed, but the Lumicon filter is clearly superior.
participants (3)
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Chuck Hards -
Don J. Colton -
Jim Gibson