From: Mark Gaffney <markgaffney@mac.com>
Date: March 29, 2009 11:42:04 PM MDT
To: Astro_IIDC@yahoogroups.com
Subject: Re: [Astro_IIDC] Re: New file uploaded to Astro_IIDC
Hi Milton, Just out of interest`s sake what was the price of your Grasshopper? PGR require an enquiry & reply system to price items as you know. My scope has to move in about 7 weeks to make way for a new carport so I`ve been looking at the price of concrete slabs, decks & Observatories again. This mob have the best price I`ve seen locally by the way for Domes etc; http://www.siriusobservatories.com/
Something I can move if I have to leave this place eventually is what I`m looking for but you`ll understand that this will compete with new camera purchases! A new slab would only set me back around $600 to begin with (on estimates) unless a deck is cheaper! Mark
On 30/03/2009, at 3:46 PM, Milton Aupperle 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
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