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Re: New C14 Owner
garynburk
Hi Richard,
Thanks for the info. You brought up some interesting points. I have a Celestron 6.3 f/r and an Optec 3.3 and am curious if they will perform OK on the C14. They are both made for 1.25 eyepieces, I wonder if there's a 2" equivelent? My CCD camera is an ST-237A with color filter wheel, purchased for Fastar imaging on my C8, it should perform well on the C14 as a Fastar setup. I also have an STV that I'll use for autoguiding. I suppose I'll eventually get an ST-8 with a filter wheel also, although there are now many fine amatuer CCD cameras available. The rollong roof building I use has three of us setup, my partners use an FLI back-illuminated CCD and a Appogee, so I can try those out easily. I've purchased an AP900 GoTo mount for the C14, having been warned by many that the CI-700 and Losmandy G11 were not adequate. I'm a bit concerned about the AP900 but decided that I can't afford the AP1200 or Paramount ME. By now, my vast reserves of excess money have been frivolously consummed, so it will be a while before any major new purchase occurs. Regards, Gary --- In C14@y..., "Richard Crisp" <rdcrisp@e...> wrote: Astromart from aDate: Fri, 21 Dec 2001 09:43:24 -0500 building inmember of this group. I share a three telescope roll-off roof other twocentral Ohio and presantly have a pier mounted 8" SCT there. The learn asscopes are 15" and 18" Obsessions. for CCDmuch about it as I can. Although I expect it to be mainly used Fastar, youimaging, I will want to look through it and will need appropriateeypieces. will be imaging at very long focal lengths.f/11 to f/7, you will still be running a 2488mm focal length. You did notsay which CCD camera you use, but that is a comparatively narrow field ofview. But running at f/7 or f/11 is great for smaller objects such as M27,M57, M82, Stephan's Quintet and so on.With the CI 700 Mount you may be in for a frustrating experience if yours islike mine and others that I know that own the CI700 and try to imagewith it. the ASP1200GTO.eyepieces forSo, my first question relates to this. What are the favorite (2032mm),this 3910mm fl beast? I usually use a 19mm Panoptic with the 8" optic. Isthat will be rather short for the 14", and is a 1.25" barrel theradian (forTV 55mm worth the cost in your opinion?I like my 31mm Nagler, my 22 and 17 and 12mm naglers and my 4mm jupiter!).extension tube to hold a Parks 50mm Plossl that works parfocal with my ST7E/CFW8camera hanging on the other port.differentAnother area of concern is mirror flop. There must be many and/orways to reduce or eliminate this on the C14, are there references have gotten used to my flop and find it actually useful when imagingbecause it indicates I have reversed directions of the focuser motor just asanother reminder....the C14favorites? Is there an engineering drawing or exploded image of available someplace? ______________________________________________________________________ __ ______________________________________________________________________ __
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Re: New C14 owner
garynburk
Thanks Bruce,
I think the 55mm will be the first ep I order. Regards, Gary --- In C14@y..., "bruceellis" <lazyb@s...> wrote: Hi Gary,Astromart from aformember of this group. I share a three telescope roll-off roofbuilding incentral Ohio and presantly have a pier mounted 8" SCT there. Theother twoscopes are 15" and 18" Obsessions.learn as CCDimaging, I will want to look through it and will need appropriateeypieces.So, my first question relates to this. What are the favoriteeyepieces forthis 3910mm fl beast? I usually use a 19mm Panoptic with the 8"(2032mm),that will be rather short for the 14", and is a 1.25" barreloptic. Is theTV 55mm worth the cost in your opinion?different |
Re: New C14 owner
bruceellis
Hi Gary,
I enjoy my TV 55 a bunch... other fav's with that scope are the Pan 35 and Nag 20. Have fun! Bruce Ellis www.nee-bee.com --- In C14@y..., "Gary Burk" <garyburk@h...> wrote: Greetings all,from a member of this group. I share a three telescope roll-off roofbuilding in central Ohio and presantly have a pier mounted 8" SCT there. Theother two scopes are 15" and 18" Obsessions.learn as much about it as I can. Although I expect it to be mainly used forCCD imaging, I will want to look through it and will need appropriateeypieces. So, my first question relates to this. What are the favoriteeyepieces for this 3910mm fl beast? I usually use a 19mm Panoptic with the 8"(2032mm), that will be rather short for the 14", and is a 1.25" barreloptic. Is the TV 55mm worth the cost in your opinion?different ways to reduce or eliminate this on the C14, are there referencesand/or favorites? Is there an engineering drawing or exploded image ofthe C14 available someplace? |
Re: New C14 Owner
Richard Crisp
Date: Fri, 21 Dec 2001 09:43:24 -0500eypieces. For the CCD side, you need to understand that unless you use Fastar, you will be imaging at very long focal lengths. with the F/6.3 focal reducer (actually reduces the C14's nominal f/11 to f/7, you will still be running a 2488mm focal length. You did not say which CCD camera you use, but that is a comparatively narrow field of view. But running at f/7 or f/11 is great for smaller objects such as M27, M57, M82, Stephan's Quintet and so on. The trick you will find at the longer focal lengths is the mount. With the CI 700 Mount you may be in for a frustrating experience if yours is like mine and others that I know that own the CI700 and try to image with it. You may want to see the difference in mounts comparing the CI700 to the ASP1200GTO. So, my first question relates to this. What are the favorite eyepieces forthe TV 55mm worth the cost in your opinion?I like my 31mm Nagler, my 22 and 17 and 12mm naglers and my 4mm radian (for jupiter!). The 35panoptic is also a good second choice to the 31mm nagler. For CCD work, I use a Van Slyke Versa Port Slider and a 2" extension tube to hold a Parks 50mm Plossl that works parfocal with my ST7E/CFW8 camera hanging on the other port. Another area of concern is mirror flop. There must be many differentYou can buy a crayford focuser and that will solve the problem. I have gotten used to my flop and find it actually useful when imaging because it indicates I have reversed directions of the focuser motor just as another reminder.... favorites? Is there an engineering drawing or exploded image of the C14 |
New C14 owner
Gary Burk
Greetings all,
I'm the new owner of a C14 with Fastar, purchased via Astromart from a member of this group. I share a three telescope roll-off roof building in central Ohio and presantly have a pier mounted 8" SCT there. The other two scopes are 15" and 18" Obsessions. While waiting impatiently for the C14 to arrive, I'm trying to learn as much about it as I can. Although I expect it to be mainly used for CCD imaging, I will want to look through it and will need appropriate eypieces. So, my first question relates to this. What are the favorite eyepieces for this 3910mm fl beast? I usually use a 19mm Panoptic with the 8" (2032mm), that will be rather short for the 14", and is a 1.25" barrel optic. Is the TV 55mm worth the cost in your opinion? Another area of concern is mirror flop. There must be many different ways to reduce or eliminate this on the C14, are there references and/or favorites? Is there an engineering drawing or exploded image of the C14 available someplace? Thanks for your help. Regards, Gary Burk _________________________________________________________________ Send and receive Hotmail on your mobile device: |
Re: Celestron F/6.3 reducer/corrector
I measured mine.
The clear aperture of the lens itself is 40 mm The aperture of the field lens on my TV 35mm Pan is somewhere between 35-37mm (I can't get the ruler down the spout!!)so there should be no issue using these in combination. I don't seem to get any shadowing. BTW I find the 2" diagonal ungainly with this eyepiece so I use an orion 2" SCT straight visual back. Means you have to get under the scope for zenith work but it means the eyepiece doesn't unscrew the vis back!! Regards John 34 S // C 11 --- In C14@y..., "gentleman_49_2000" <gentleman_49_2000@y...> wrote: Does anyone know what the clear aperture of the f6.3would like to know what kind of performance I would get. |
Re: [C14] Re: CI-700 Mount
S?ren Jessen
开云体育Hi
john,
?
I agrree with C14.
is Just too big for The ci-700 and the G-11
-?to much
vibration
and the clutches
slips -
even at good ballancing.
?
Los.?HGM 200 or
AP. GTO 1200 or Paramount CM1100S or ME?are
better choises for
the c-14
?
regards
Soeren
|
Re: CI-700 Mount
I baulked at a C14. Just too big!!
But I did buy a C11 on a Ci 700 I wish I had the G11 because I think it is an easier to use mount with the friction clutches; otherwise I don't think there is too much difference. I suggest the 11" is as big as I would like to see on this mount. I thnik Celestron is stretching it with a 14" but you never know. I am just really touchy about vibration. Incidentally when you get your s cope make sure it is collimated by the supplier. Mine had been jolted somewhere between Torrance ans Sydney and still isn't quite perfcet, though heaps brighter than my previous C8 which I have sold. ...and that';s why I am now tryuing to buy a neat little 4" refractor just for those takeout days... -- In C14@y..., golubosks001@h... wrote: The C-14 is my dream scope. I may have the opportunity to get afork mounted one in March for a really good price. But, if that falls900 GOTO. But, will not be able to afford it. So, I am consideringthe G-11 (with Gemini GOTO) or the CI-700 (GOTO).do some piggy back (manual guided)in a sheltered location for forI can afford the Astrophysics 900? |
Re: CI-700 Mount
I baulked at a C14. Just too big!!
But I did buy a C11 on a Ci 700 I wish I had the G11 because I think it is an easier to use mount with the friction clutches; otherwise I don't think there is too much difference. I suggest the 11" is as big as I would like to see on this mount. I thnik Celestron is stretching it with a 14" but you never know. I am just really touchy about vibration. Incidentally when you get your s cope make sure it is collimated by the supplier. Mine had been jolted somewhere between Torrance ans Sydney and still isn't quite perfcet, though heaps brighter than my previous C8 which I have sold. ...and that';s why I am now tryuing to buy a neat little 4" refractor just for those takeout days... -- In C14@y..., golubosks001@h... wrote: The C-14 is my dream scope. I may have the opportunity to get afork mounted one in March for a really good price. But, if that falls900 GOTO. But, will not be able to afford it. So, I am consideringthe G-11 (with Gemini GOTO) or the CI-700 (GOTO).do some piggy back (manual guided)in a sheltered location for forI can afford the Astrophysics 900? |
(No subject)
rdcrisp
--- In C14@y..., "astrodanco" <danco@p...> wrote:
--- In C14@y..., sand27921@y... wrote:gotoThose of us that have the thefeatures. If anyone has any information i would appreciate....Take your old OTA, remove it from the fork arms and base, slap a C-14 OTA.Dan is right on both points. Ditch that old fork mount and get a real mount. You might even be able to sell the fork mount. Does it have GOTO capability or can it be retrofitted? If so, it might make a good mount for aiming a loop yagi tuned for Hydrogen at 1.4GHz. Thinking about radio-astronomy.... rdc |
(No subject)
astrodanco
--- In C14@y..., sand27921@y... wrote:
Those of us that have theTake your old OTA, remove it from the fork arms and base, slap a Losmandy dovetail bar on it, then mount it on your favorite equatorial mount (be that Losmandy, Bisque Paramount, or Astrophysics). Yes, a good mount can be much more expensive than the C-14 OTA. - Dan |
Re: Glad to be here
Just note that you can buy just the OTA and skip the CI700 mount
entirely. I am quite happy with the OTA just did not care for the CI700 mount at all. rdc www.geocities.com/rdcrisp --- In C14@y..., "Ron and Sally Golubosky" <golubosks001@h...> wrote: Thanks Kevin. That's about what I hear on the CI-700. MyAstronomy club has a fork mounted C-14 that they have had loaned out for the past 4 years. They get it back in February and are considering selling it to a club member (highest sealed bid). If I don't get it, then I will save and get the C-14 but, am not sure of which mount. If Celestron has fixed the RA slippage then it's a no brainer (C-14 GOTO) as I am really only looking for a visual platform. If they have not fixed the RA slippage then I am looking at the William Optics GT-One HD mount. Got my fingers crossed on the clubs scope. CCD images much beyond 30 seconds with the CI-700, even in Fastar mode. I was hoping for better performance from the mount. NexStar version of the mount. me the issues and fixes you've had with the CI-700? I would assume most have to do with the RA Clutch slipping. purchased my C-14 (mounted on a CI-700) in March of this year. Iabsolutely love the C-14 although I have had a few issues with the CI-700.members. Service. Service. Service. |
Re: [C14] Glad to be here
Ron and Sally Golubosky
开云体育Thanks Kevin.? That's about what I hear on the
CI-700.? My Astronomy club has a fork mounted C-14 that they have had
loaned out for the past 4 years.? They get it back in February and are
considering selling it to a club member (highest sealed bid).? If I don't
get it, then I will save and get the C-14 but, am not sure of which mount.?
If Celestron has fixed the RA slippage then it's a no brainer (C-14 GOTO) as I
am really only looking for a visual platform.? If they have not fixed the
RA slippage then I am looking at the William Optics GT-One HD mount.? Got
my fingers crossed on the clubs scope.
?
Thanks again
?
Ron
|
Re: [C14] Glad to be here
ksbtk
开云体育Good evening Ron:
?
Exactly!? The slippage is a problem.?
Also, I can't get unguided CCD images much beyond 30 seconds with the CI-700,
even in Fastar mode.? I was hoping for better performance from the
mount.
?
I have inquired of my dealer if I can trade in the
CI-700 for the NexStar version of the mount.
?
Clear skies,
Kevin
?
|
Re: [C14] Glad to be here
Ron and Sally Golubosky
开云体育Kevin
?
I'm seriously considering getting the C-14
GOTO.? Can you tell me the issues and fixes you've had with the
CI-700?? I would assume most have to do with the RA Clutch
slipping.
?
Ron
?
?
|
Glad to be here
Kevin Dixon
Good Morning:
I just discovered this group and am glad to be here. I purchased my C-14 (mounted on a CI-700) in March of this year. I absolutely love the C-14 although I have had a few issues with the CI-700. I am very much looking forward to corresponding with group members. Clear skies, Kevin Dixon ksbtk@... |
Re: [C14] Re: 7" AP vs C14
Scott Evans
At 02:30 PM 11/30/2001, you wrote:
Is the HX916 about the same size as the others? That looks like a I believe all of the Starlight cameras use the same diameter body so the HX916 should fit. I'm not sure at what point you'll get vignetting for a camera field that large. FWIW www.astrovid.com advertises the HX916 as being fastar compatible. Scott |
Re: 7" AP vs C14
--- In C14@y..., Scott Evans <sevans@i...> wrote:
Richard,of the starlight cameras should work with their adapter. They're smallerand lighter than the ST-237 so that shouldn't be an issue. Well that is great to know about the Starlight Express cameras. I know they seem to give you a lot of capability for a lot less money than Brand S.... And for Jupiter shots, nothing beats a one-shot color cam. But it is good news indeed that the cameras will work in the FASTAR configurations. Is the HX916 about the same size as the others? That looks like a very nice camera for a small amount of money. On the downside it would be nice if they had a temperature regulator on their cooling system for those long deep space exposures. rdc rdc |
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