ICEINSPACE
|
Moon Phase
CURRENT MOON
Waning Gibbous 58.7%
|
|
22-01-2006, 03:57 PM
|
 |
Registered User
|
|
Join Date: Jan 2005
Location: Sale, VIC
Posts: 6,033
|
|
|
6" GS Dobs
I had a chance to check out ThunderChild's new 6" GS Dob last night. This scope looks like it is going to make a very fine planetary scope. The OTA is long and slim with an f8 mirror. The secondary is just slightly bigger than needs to be to get all of the primary in view. The resulting central obstruction is only about 25mm in diameter, so 17% of aperture, which is supposed to be excellent for contrast. The spider vanes are the same quality as on the bigger GS scopes, no thick bolts or metal bars like you see on cheap dept store Newts. Unfortunately we did not get to look at anything through the scope. Rain & thunder. 
Does anyone else own a 6" GS Dob, or is this a first for IIS? 
Last edited by janoskiss; 22-01-2006 at 04:14 PM.
|
22-01-2006, 04:17 PM
|
 |
1300 THESKY
|
|
Join Date: Dec 2004
Location: Cairns Qld
Posts: 2,405
|
|
|
I dont Know if anyone else has one on IIS, but I have suggested them as a first scope for people on a tight Budget a number of times.
Invariably they either wait till they can get an 8", or stretch their budget & get an 8" right away.
I will be interested to see the observing reports.
|
22-01-2006, 04:37 PM
|
 |
~Dust bunny breeder~
|
|
Join Date: Nov 2004
Location: The town of campbells
Posts: 12,359
|
|
|
hmm... i know someone here does or did but i cant hink who.... was it vindictive?
|
22-01-2006, 09:40 PM
|
 |
4000 post club member
|
|
Join Date: Sep 2004
Location: Melbourne
Posts: 4,900
|
|
|
A nice starter scope I reckon. The only letdowns being a 1.25 inch r&p focuser and 30mm finder, but still far and away the best choice in its price range by a country mile.
|
22-01-2006, 10:16 PM
|
|
Registered User
|
|
Join Date: Jan 2005
Location: Sale, VIC
Posts: 6,033
|
|
|
While collimating the 6" scope as best I could without a centre spot, I was just impressed that the secondary is so well matched in size to the primary, and that the resulting secondary obstruction is so small. Frankly, I expected something a little more crude considering the scope's price and apparent lack of popularity.
|
22-01-2006, 10:17 PM
|
 |
lots of eyes on you!
|
|
Join Date: Jun 2005
Location: Launceston Tasmania
Posts: 7,381
|
|
|
is it making a trip to snake valley ini march???
|
22-01-2006, 10:32 PM
|
|
Registered User
|
|
Join Date: Jan 2005
Location: Sale, VIC
Posts: 6,033
|
|
|
I sure hope so. That's up to Chris (ThunderChild).
|
22-01-2006, 10:36 PM
|
|
lots of eyes on you!
|
|
Join Date: Jun 2005
Location: Launceston Tasmania
Posts: 7,381
|
|
|
r u coming steve???
|
22-01-2006, 10:47 PM
|
|
Registered User
|
|
Join Date: Jan 2005
Location: Sale, VIC
Posts: 6,033
|
|
|
Yep, with my 8" dobbie and boxful of very nice EPs and a binoviewer!!! No ED80 this time.
|
22-01-2006, 10:53 PM
|
|
lots of eyes on you!
|
|
Join Date: Jun 2005
Location: Launceston Tasmania
Posts: 7,381
|
|
|
excellent!
now we are getting so much more chummy than last time, i would like to get :
6",8",10",12" all in a row, all collimated and then run a range of ep's across them, each owner noting the difference?
how does jupiter look etc etc
|
22-01-2006, 11:08 PM
|
 |
Planet photographer
|
|
Join Date: May 2005
Location: Bundaberg
Posts: 8,819
|
|
|
How much is this 6" dobbie????
|
22-01-2006, 11:13 PM
|
|
Registered User
|
|
Join Date: Jan 2005
Location: Sale, VIC
Posts: 6,033
|
|
|
$300. Andrews is the only dealer I know that sells them.
|
22-01-2006, 11:17 PM
|
|
Planet photographer
|
|
Join Date: May 2005
Location: Bundaberg
Posts: 8,819
|
|
|
I'm wondering how it would go as a dedicated planetary imaging scope. Hmmm...
|
22-01-2006, 11:25 PM
|
|
Registered User
|
|
Join Date: Jan 2005
Location: Sale, VIC
Posts: 6,033
|
|
|
The 6" aperture would limit the resolution for imaging, but still, it ain't too shabby...
|
22-01-2006, 11:29 PM
|
|
Planet photographer
|
|
Join Date: May 2005
Location: Bundaberg
Posts: 8,819
|
|
Yeah, it was just a thought...If I could pick up a OTA only cheap enough, I'd almost be tempted to try one out.
|
23-01-2006, 12:00 PM
|
|
~Dust bunny breeder~
|
|
Join Date: Nov 2004
Location: The town of campbells
Posts: 12,359
|
|
andrews have a seconds section on the site. check it out asijohn you might get lucky 
|
23-01-2006, 07:40 PM
|
|
Planet photographer
|
|
Join Date: May 2005
Location: Bundaberg
Posts: 8,819
|
|
Yup, been doing that for the last few months once a week. 
|
10-02-2006, 07:23 PM
|
|
4000 post club member
|
|
Join Date: Sep 2004
Location: Melbourne
Posts: 4,900
|
|
|
Any update on this scope ?
Im tossing around the idea of putting one on an eq5 I recently acquired and also to carry on trips as a small lightweight travel scope.
|
10-02-2006, 07:37 PM
|
|
Registered User
|
|
Join Date: Jan 2005
Location: Sale, VIC
Posts: 6,033
|
|
|
I still haven't looked through it, and Chris too is waiting for clearer skies I believe. It is just as long as an 8", so it is not exactly a travel scope. It still won't feet in the boot (of a smallish car) and takes up the whole back seat. But if you do end up getting one, I have a pair of good quality tube rings to suit a 6" newt.
|
10-02-2006, 09:08 PM
|
|
4000 post club member
|
|
Join Date: Sep 2004
Location: Melbourne
Posts: 4,900
|
|
|
A travel scope to me is one where I can fit the whole thing in the back seat, and doesnt take much setting up.
With the 10 incher that I have, its the bulk of the base thats the killer.
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT +10. The time is now 04:07 PM.
|
|
