hickeydp
member
Reged: 06/14/09
Posts: 91
Loc: Ireland
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Hi Taylor,
At the moment a 40lb capacity would suit me, however I'm thinking of possible future OTA that might push a CGEM. There is also the fact that right now I have some spare funds to play with left over from house renovations. I'm not going to have this kind of cash to spare again for a long while (if ever) so I'm trying to make the most out of it.
The reason I bring this up is the guy selling the CGE also has a Meade 14" ACF OTA he's selling. Although this will blow out the budget and then some, I'm sorely tempted.
The sensible thing would be to go to my Celestron dealer and order the CGEM to mount my deforked 10" Meade Classic. However opportunities like the 14+CGE are few and far between this side of the pond (Ireland not UK  ).
So in that case, the CGE is a must. In fact will be close to undermounted for AP.
Sorry for the life story answer but it's rolling around in my head so much, it's hard to keep the dialogue internal 
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Clear skies
Damien
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Meade LX200 10 Classic (Deforked on an EQ6)
Meade LXD75 6N AT
Celestron Orange Tube C8 (81)
Celestron C6 (RIP) CG5
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hickeydp
member
Reged: 06/14/09
Posts: 91
Loc: Ireland
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BTW, on the PEC debate. I'm kinda finding my way into the whole world of AP so a quick question if I may...
I have it in my head that this periodic worm error uncorrected would result in jagged stars or even the appearance of poor focus in a long exposure image from the axis 'bouncing' through whatever degree of arc second error. Does this sound right?
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Clear skies
Damien
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Meade LX200 10 Classic (Deforked on an EQ6)
Meade LXD75 6N AT
Celestron Orange Tube C8 (81)
Celestron C6 (RIP) CG5
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Taylor
professor emeritus
Reged: 07/10/05
Posts: 558
Loc: Federal Way, WA
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Quote:
Hi Taylor,
At the moment a 40lb capacity would suit me, however I'm thinking of possible future OTA that might push a CGEM. There is also the fact that right now I have some spare funds to play with left over from house renovations. I'm not going to have this kind of cash to spare again for a long while (if ever) so I'm trying to make the most out of it.
The reason I bring this up is the guy selling the CGE also has a Meade 14" ACF OTA he's selling. Although this will blow out the budget and then some, I'm sorely tempted.
The sensible thing would be to go to my Celestron dealer and order the CGEM to mount my deforked 10" Meade Classic. However opportunities like the 14+CGE are few and far between this side of the pond (Ireland not UK ).
So in that case, the CGE is a must. In fact will be close to undermounted for AP.
Sorry for the life story answer but it's rolling around in my head so much, it's hard to keep the dialogue internal
I'm gonna be the devils advocate then, buy the 14 w/ the CGE. Aperture always rules.
From reading posts by fellow astronomers on your side of the pod, you are correct, good deals on gear like that do not frequently come around. 14" scopes (even 11" ones) rarely pop up even over here.
If you have a good site for the 14" where you can leave it up for days at a time then definitely go for it.
As you can see from our previous discussions, the worm error can be corrected out of any scope with today's modern autoguiding cameras and software and some PEC software.
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Some OTAs, a mount, some eyepieces, and some cameras
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hickeydp
member
Reged: 06/14/09
Posts: 91
Loc: Ireland
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So very very tempted 
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Clear skies
Damien
-------------------------
Meade LX200 10 Classic (Deforked on an EQ6)
Meade LXD75 6N AT
Celestron Orange Tube C8 (81)
Celestron C6 (RIP) CG5
-------------------------
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Kolenka
Pooh-Bah
Reged: 06/01/08
Posts: 1009
Loc: Seattle Area, WA, USA
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Quote:
BTW, on the PEC debate. I'm kinda finding my way into the whole world of AP so a quick question if I may...
I have it in my head that this periodic worm error uncorrected would result in jagged stars or even the appearance of poor focus in a long exposure image from the axis 'bouncing' through whatever degree of arc second error. Does this sound right?
In my experience, it usually appears as slightly oblong stars (depending on focal length) as the centroid of the star moves back and forth through the point where it should be.
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Orion XX12 / Orion 80ED OTA / AT66ED
Nagler 7T6, 9T6, 13T6, 17T4, 26T5
Canon XS, TIS DMK 31AF03, AstroTrac TT320X
Northwest Astro Photoblog
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David Pavlich
Postmaster
Reged: 05/18/05
Posts: 8687
Loc: Mandeville, LA USA 30.22 X 90....
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Quote:
Quote:
Send it to Doc Clay
Thank you, but no, thank you. How is he going to do that, any details, facts, before and after PEC curves? Show me hard evidence that his service can substantially reduce PEC. Don’t tell me ‘it worked for me’. PEC is built into the worm. Does Doc Clay rebuild the worm? Adjusting worm – gear gap is a trivial task. Lapping the worm and gears by slewing is also a very simple task. These ‘cures’ might make the PEC curve a bit smoother. It will not be a dramatic change though. Been there, done it.
That's what's great about being here in the states. We don't have to send mounts to Doc Clay and we don't even need to use Marty Cables. 
David
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Proud Member; PAS NOLA,
"If we knew what we were doing, it wouldn't be called research..."
A. Einstein
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Ian Robinson
Pooh-Bah
Reged: 01/29/09
Posts: 1166
Loc: Gateshead.NSW Nth Coast,Austra...
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Quote:
Quote:
Quote:
out of the box CGEs
Yeah right. Any suggestions how to reduce CGE PEC - marty cables?
Send it to Doc Clay.
David
Yeh . I had this suggested to me too when I was very keen on getting a CGE , unfortunately this kind of GEM tuning isn't done here in Oz so it meant packing the mount up and shipping to the USA to Clay if I wanted it done ..... bugger that !!! too expensive .
Might be OK if you live in the USA or Canada , but not a viable proposition for us folks who are overseas. Plus I objected to paying to improve a brand new GEM which should have near perfect tracking anyway (for the price that they sell for ....).
I assume Clay doesn't do his upgrades gratis either.
Edited by Ian Robinson (08/08/09 06:26 AM)
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chicot
super member
Reged: 09/30/08
Posts: 190
Loc: Liverpool, UK
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Don't know what your budget is but, if it will stretch to it, I'd take a long look at a Gemini G42. I think it's fair to say that it's tracking performance is a class above that of the G11, for example. There's a review of the G41 (it's forerunner) in the reviews section.
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Meade 10-inch LX200 classic
Williams Optics ZII80
Starlight Xpress SXV-H9
Starlight Xpress Lodestar autoguider
Meade DSI III
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hickeydp
member
Reged: 06/14/09
Posts: 91
Loc: Ireland
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Just had a look at that. Beautiful mount but out of my price range right now.
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Clear skies
Damien
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Meade LX200 10 Classic (Deforked on an EQ6)
Meade LXD75 6N AT
Celestron Orange Tube C8 (81)
Celestron C6 (RIP) CG5
-------------------------
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Ian Robinson
Pooh-Bah
Reged: 01/29/09
Posts: 1166
Loc: Gateshead.NSW Nth Coast,Austra...
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Quote:
Don't know what your budget is but, if it will stretch to it, I'd take a long look at a Gemini G42. I think it's fair to say that it's tracking performance is a class above that of the G11, for example. There's a review of the G41 (it's forerunner) in the reviews section.
Nice .... but not to be gained over the New Atlux .
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chicot
super member
Reged: 09/30/08
Posts: 190
Loc: Liverpool, UK
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Wasn't too familiar with this mount but you're right - it does look like a good performer. Sadly, doesn't look too easy to get hold of in the UK - the one dealer I found only has a solitary ex-display model.
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Meade 10-inch LX200 classic
Williams Optics ZII80
Starlight Xpress SXV-H9
Starlight Xpress Lodestar autoguider
Meade DSI III
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hickeydp
member
Reged: 06/14/09
Posts: 91
Loc: Ireland
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Hi Chicot
Try this guy, Ian King Imaging
http://www.iankingimaging.com/show_products.php?category=46&offset=10
He's based in the UK, not sure where.
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Clear skies
Damien
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Meade LX200 10 Classic (Deforked on an EQ6)
Meade LXD75 6N AT
Celestron Orange Tube C8 (81)
Celestron C6 (RIP) CG5
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chicot
super member
Reged: 09/30/08
Posts: 190
Loc: Liverpool, UK
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Heh. I buy almost all my astro stuff from him. I don't think he sells the Vixen Atlux though.
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Meade 10-inch LX200 classic
Williams Optics ZII80
Starlight Xpress SXV-H9
Starlight Xpress Lodestar autoguider
Meade DSI III
Edited by chicot (08/08/09 12:12 PM)
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hickeydp
member
Reged: 06/14/09
Posts: 91
Loc: Ireland
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Sorry mate, thought you were referring to the Gemini
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Clear skies
Damien
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Meade LX200 10 Classic (Deforked on an EQ6)
Meade LXD75 6N AT
Celestron Orange Tube C8 (81)
Celestron C6 (RIP) CG5
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ken30809
stranger
Reged: 09/03/09
Posts: 4
Loc: Evans, GA
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Does anyone have a link to the VPI marty cables for the CGE?
Thanks
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Thanks,
Ken
C9.25 SCT, Takahashi Sky90 and FS-60C, CGE Mount
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mclewis1
Thread Killer
Reged: 02/25/06
Posts: 3961
Loc: New Brunswick, Canada
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http://www.vpi.us/cable-sf-shld.html
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Mark
C11, C6, APM/TMB115, and AT80ED - Tandem mount CGE and CG-5A, WO EZ-Touch and AT Voyager
25x100s and 8x56s, T-Mount Light, Mark 1 eyeballs - Modded 350D, DSI-P, SPC900, Mallincam
Just because you can doesn't necessarily mean that you should
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gnowellsct
professor emeritus
Reged: 06/24/09
Posts: 733
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Quote:
Quote:
Don't know what your budget is but, if it will stretch to it, I'd take a long look at a Gemini G42. I think it's fair to say that it's tracking performance is a class above that of the G11, for example. There's a review of the G41 (it's forerunner) in the reviews section.
Nice .... but not to be gained over the New Atlux .
Really?
http://www.astromart.com/articles/article.asp?article_id=663
regards GN
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"Aperture will get you through times of no money better than money will get you through times of no aperture."
featuring selected astrojunk:
bunch o' widefield eyepieces
bunch o' narrowfield eyepieces
couple o' Barlows
couple o' scopes
couple o' mounts
couple o' tripods
and a pier 'n' stuff
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chuckscap
sage
Reged: 07/18/09
Posts: 229
Loc: Colorado Springs, CO USA
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So does anyone here have a C11 on a CGEM? If they do can they tell me how it performs for visual and for astrophotography at f6.3? I really like the Celestron handcontroller. I have a Mewlon 250 that needs a mount and a total mount budget of around $2000 could maybe stretch it to 3000 (G11 w Gemini no extras). I plan to be primarily visual, but maybe do short exposure AP (30 secs or less) with my modififed Canon 300D.
Thanks,
Chuck
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dickbill
member
Reged: 09/30/08
Posts: 92
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If the mount, or any mount, can be reduced to 5 arcsecond PE after guiding and/or PEC, but we still want a smaller error because of long focal lenght (like a C11 at F10), should we also consider an Adaptive Optics with an off axis guider combination ?
It seems to me that moving a heavy payload to match a fraction of arsecond accuracy is intrinsecally less efficient than moving the light mirror of the reactive optic.
Question to AO8 users: Can the AO8 correct a 4arcsec PE ?
and anyone knows if the sbig AO8 could be used with anything else than a sbig camera like an orion ss3 or a meade dsi3 ?
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