From: Alan Friedman <alan@greatarrow.com>

Date: September 20, 2010 4:20:42 PM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] Re: First light Flea2

Hi Milton,

It was a very special experience. Yes, I did use the wide spacing setting. Jupiter's disk in my captures from the 60" is 800 pixels wide... that's using the .67 focal reducer to yield a measly 16 meter focal length!

best,

Alan

On Sep 20, 2010, at 5:45 PM, milton_aupperle wrote:

Hi Alan;

Sounds like a great trip.

--- In Astro_IIDC@yahoogroups.com, Alan Friedman <alan@...> wrote:
--------- Snipped for Brevity ---------
> I had to set the confidence level to 0 and hand select the frames
> for stacking - contrast was very low, quite a challenge to work with.

Did you try setting the "Use XXXX spacing when estimating sharpness" pop up menu to "Wide"? It's a new addition to 4.06.00 and is intended for your situation (quote from the read me first document):

"The "Wide" spacing should be used in cases where your using ridiculous focal lengths where your grossly over sampling the actual pixel resolution."

It might help and can't wait to see your results.

Milton Aupperle

PS: The full release of Astro IIDC 4.06.0 with installer, script and documentation should be available by the end of the week.