From: Mark Gaffney <markgaffney@me.com>

Date: September 26, 2009 1:07:49 AM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] Astro IIDC  vs  Registax

Here`s 2 images, the first from Astro IIDC & the 2nd my learner`s attempt from Keith`s Image Stacker;

On 26/09/2009, at 5:30 AM, doodlebun wrote:

I've used Astro IIDC for years now for planetary imaging but I thought it was time to do a comparison study. To do this I needed to convert the captured QT movie to an .avi movie. I wasn't able to figure out how to create an uncompressed avi movie from an uncompressed qt movie. So I just used the highest bitrate possible which created a 20 MB divx .avi file from a 350 MB Astro IIDC encoded QT movie. You can see the results side by side at http://gallery.mac.com/davidbleser#100176/Jupiter-20set-20three-209-19-09_2&bgcolor=black

Despite a lot of fiddling with parameters in Registax I could not get anymore detail from Registax. I will admit the ASTRO IIDC image is somewhat oversharpened to enhance detail.

However Registax has a "dering filter" which proved desirable. When properly adjusted it smoothes the hard planetary edge to give a more realistic 3D appearance to Jupiter. Perhaps Milton can be inspired to include such a filter in a future release.