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Astrophotography and Sketching >> DSLR & Digital Camera Astro Imaging & Processing
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s58y
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Reged: 12/12/04
Posts: 5509
Loc: Eastern NY
Re: Which H-alpha filter?
      07/03/09 01:36 PM
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Quote:

It looks ro me like the halo is only a big problem for really bright stars. Is that the conventional thought?



You can see off-center reflection haloes around the two bright stars in Orion's belt in this narrowband shot:

haloes

It's not clear that they're caused by the filter, of course.

--------------------
Hutech 30D, SBIG ST-402 autoguider
SV80S, TV102iis
Old camera lenses: 800mm f/5.6, 180mm f/3.4
AP900, Barndoor tracker

http://www.pbase.com/s58y

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Entire thread
Subject Posted by Posted on
* Which H-alpha filter? cweinhei 06/29/09 12:34 PM
. * Re: Which H-alpha filter? Samir Kharusi   07/02/09 03:55 AM
. * Re: Which H-alpha filter? justabob   07/02/09 11:12 AM
. * Re: Which H-alpha filter? Samir Kharusi   07/03/09 06:07 AM
. * Re: Which H-alpha filter? justabob   07/03/09 08:20 AM
. * Re: Which H-alpha filter? Samir Kharusi   07/04/09 03:59 AM
. * Re: Which H-alpha filter? justabob   07/04/09 12:17 PM
. * Re: Which H-alpha filter? Tonk   06/29/09 05:23 PM
. * Re: Which H-alpha filter? Rankinstudio   06/29/09 07:09 PM
. * Re: Which H-alpha filter? Freddy WILLEMS   06/30/09 02:39 AM
. * Re: Which H-alpha filter? Igor   06/30/09 04:09 AM
. * Re: Which H-alpha filter? gavinm   06/30/09 06:39 AM
. * Re: Which H-alpha filter? Coliwabl   06/30/09 10:47 AM
. * Re: Which H-alpha filter? Coliwabl   06/30/09 10:54 AM
. * Re: Which H-alpha filter? justabob   06/30/09 10:59 AM
. * Re: Which H-alpha filter? justabob   06/30/09 11:10 AM
. * Re: Which H-alpha filter? cweinhei   06/30/09 01:32 PM
. * Re: Which H-alpha filter? Nils_Lars   06/30/09 03:43 PM
. * Re: Which H-alpha filter? KevinUK   07/01/09 07:06 AM
. * Re: Which H-alpha filter? s58y   07/01/09 03:04 PM
. * Re: Which H-alpha filter? cweinhei   07/01/09 03:51 PM
. * Re: Which H-alpha filter? s58y   07/01/09 11:44 PM
. * Re: Which H-alpha filter? s58y   07/01/09 11:47 PM
. * Re: Which H-alpha filter? s58y   07/01/09 11:51 PM
. * Re: Which H-alpha filter? s58y   07/02/09 12:10 AM
. * Re: Which H-alpha filter? justabob   07/02/09 12:53 AM
. * Re: Which H-alpha filter? cweinhei   07/02/09 04:47 PM
. * Re: Which H-alpha filter? s58y   07/03/09 01:36 PM
. * Re: Which H-alpha filter? KevinUK   07/08/09 01:37 AM
. * Re: Which H-alpha filter? s58y   07/02/09 12:29 PM

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