From: Alan Friedman <alan@greatarrow.com>

Date: April 20, 2005 10:19:14 AM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] New  Image

Hi Milton -

That's a great image! and even more impressive coming from only 5" aperture. 

I was out the same night testing both the recent beta of Astro IIDC and a new manual filterwheel to capture the RGB data with the DMK 21BF04. I've been working on the saturn images first - they are not as good as my image from March - but pretty fair considering the air turbulence at the time. 

I found out something firsthand that I had heard from others - using a red filter for luminance detail is very effective at lessening the effects of bad seeing. My video streams with red filtration at 266ms exposure show more detail than the white light streams captured at 33ms! I have seen this used effectively on the moon and jupiter where light throughput is not an issue (at least in a 10") but I was surprised to see how well it worked on saturn too.

Will post some results when I finish processing...

(Bob - thanks for your kind words on my saturn image 8^)

cheers -

Alan

On Apr 19, 2005, at 9:57 PM, milton_aupperle wrote:

Hi folks;

Last night I had clear skies and reasonable turbulence - the first

time in about 2 or 3 weeks, so I was testing out Astro IIDC 2.0  with

the Point grey Research color camera on Luna and Jupiter.  I did all

the capture in 16 bit mode at 30 fps, so it's capturing 17.6 megabytes

per second and I grabbed a little over 18 gigabytes of video on the

laptop.

I batch stacked and aligned the movies in Astro IIDC last night (while

I slept) and got a few good images -  one of which I posted in the

Plnetary folder as Jupiter_050419_MJA.jpg which has ganymedes shadow

and the GSR. None of them are up to Alan's saturn shot standard - but

for a 5.1" MAK scope sitting on a 10th story balcony and the close

proximity of the JetsStream (we had a double loop of it last night), I

think it came out pretty good.

I'll be posting details on what's new in Version 2.0 of Astro IIDC and

hopefully seeding the beta out in the next few weeks.

TTYL..

Milton J. Aupperle

President

ASC - Aupperle Services and Contracting

Mac Software (Drivers, Components and Application) Specialist

#1005 - 815 14th Avenue. S.W.

Calgary Alberta Canada T2R0N5

1-(403)-229-9456

milton@outcastsoft.com

www.outcastsoft.com

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