From: Phil Houston <pkh111@knology.net>

Date: March 29, 2009 11:16:38 PM MDT

To: "Astro_IIDC@yahoogroups.com" <Astro_IIDC@yahoogroups.com>

Subject: Re: [Astro_IIDC] Re: New file uploaded to Astro_IIDC

Milton,

I did not know that. I do know that your latest Moon

images are great. Thanks for the info.

Phil

On Mar 30, 2009, at 12:46 AM, "Milton Aupperle" <milton@outcastsoft.com> wrote:

Hi Phil;

Just for interest sake, some of the PGR Grasshopper (GRAS-14S5 models) cameras have the same EXHAD CCD as the Starlight Xpress does. Price wise they are a bit cheaper than the XPress was, or was the last time I costed them out. However the Xpress are cooled, where as the Grasshopper aren't.

I run mine at 15 fps (in 16 bit per channel 16384x1036 pixels) or exposure times to 1 hour exposures. In 8 bit, you can run at 30 fps 16384x1036 pixels.

TTYL..

Milton Aupperle

--- In Astro_IIDC@yahoogroups.com, Phil Houston <pkh111@...> wrote:
>
> Alberto,
>
> I have been looking at your DSO images today and have been very
> impressed. Those are possibly the best I've seen taken with a DMK
> camera and I did not realize that these cameras were actually capable
> of this type of image. Very nice, thanks.
>
> I own a DMK 31AF03 and occasionally use it for lunar imaging but
> thought deep sky imaging was beyond it's capability. I also use a
> Starlight Xpress CCD and have tried my hand at some DSOs through a
> small aperture Mak, with limited success. The Starlight Xpress
> cameras with the Sony Exview chips are, in my opinion, a very capable
> cameras and can capture exquisite images in the right hands. You
> might find them useful sometime down the road.
>
> My main point here is that I had the most fun imaging was when I was
> challenged by using a small telescope with a rather high f#. Because
> very few other people were using similar equipment I had the feeling
> of competition and strived to produce better images. Of course,
> larger scopes and expensive cameras could capture better images but
> that did not really matter to me. I'm hoping you will try to push the
> limits of the DMK camera for a while and enjoy your accomplishments.
> I know I will enjoy seeing your images.
>
> Phil
> http://www.astrophil.com/
>
>
>
> On Mar 29, 2009, at 4:41 PM, albe albo wrote:
>
> >
> > THX Alan.
> > your words are alway very kind.
> > The day after i did a M13, M57 (both luma and chroma with The
> > Imaging Source). Then i grabbed a M82 but i didn't process it yet.
> > Now it started to rain heavily. The Moon is incoming. I hope to be
> > allowed to do some decent moon after 4 months of hungriness!
> >
> > Two days ago a friend of mine lent me a CCD Starlight Xpress for a
> > night.
> > Humm... i was pretty impressed by the very low noise allowing
> > better DSO results even in urban skies.
> > For the moment i will continue with my DMK DBK (i'm affectionated
> > and... with no money for a CCD!) but in my mind now there ia little
> > bug eating my brain...
> >
> > I 'd like to ask you a question: i saw a Thousand Oaks Halpa filter
> > to apply to a normal scope (opening 80mm) that would fit perfectly
> > on my 80ED.
> > The question is: would it be better a Coronado PST or the
> > ThousandOaks filter?
> > Do you know them?
> > http://www.thousandoaksoptical.com/halpha.html
> >
> > Thank you in advance
> > Wishes
> > Alberto
> > Da: Alan Friedman <alan@...>
> > A: Astro_IIDC@yahoogroups.com
> > Inviato: Domenica 29 marzo 2009, 21:34:20
> > Oggetto: Re: [Astro_IIDC] New file uploaded to Astro_IIDC
> >
> > Hi Alberto -
> >
> >
> > These are some of the best deep sky images I've seen from a
> > streaming camera.
> >
> > best wishes,
> > Alan
> >
> >
> > On Mar 29, 2009, at 1:46 PM, Astro_IIDC@yahoogro ups.comwrote:
> >
> >>
> >> Hello,
> >>
> >> This email message is a notification to let you know that
> >> a file has been uploaded to the Files area of the Astro_IIDC
> >> group.
> >>
> >> File : /DSO/Marathon- Big.jpg
> >> Uploaded by : richter1956 <richter1956@ yahoo.com>
> >> Description : The one-night DSO-DMK-DBK "marathon" with tech. details
> >>
> >> You can access this file at the URL:
> >> http://groups. yahoo.com/ group/Astro_ IIDC/files/ DSO/Marathon-
> >> Big.jpg
> >>
> >>
> >
> >
> >
> >
>