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Re: [C14] Digest Number 58
W. Gondella
Hi Mark,
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No I never deal with the dealers. I've done all of my business directly through Scott. I've found Scott to be extremely helpful and excellent to deal with. Frankly, none of the dealers even mention the 200. If you didn't know it existed, you would think Los only make the 8 and 11. I called Scott and ordered the 200 off of him and was apparently extremely lucky in getting it so fast. I have been very satisfied with it. I've used it with a Q7, C14 and 10" f/6.5 Parallax. Soon, I will add a TMB 6" APO. The AP1200 seems easier to detach the dec shaft from the polar shaft, but I am soon going to machine my 200 to modify it and address that issue. The 200 has a superb clutch and dovetail system, however the dec axis IS top-heavy in that regard and that can be a little trouble (requires additional counterweight). Also, the AP1200 uses the much better Amphenol connectors and the wire routing is generally a better scheme. However, I like the black anodized machined surface and adjustable pier-pod legs (I'm seldom on the level) of the 200 over the cabled legs with tensioners that AP uses and the white painted cast surfaces, plus the lack of a dovetail (though this probably has advantages to the orthogonality of the OTA). And the 200 is less expensive. The steppers have not been a real issue, but I can replace them with a system from Sof-Tec if I should choose. All in all, the AP is probably the ultimate mount for some people and I confess a deep admiration for it. But it is also significantly at a higher cost and waiting time as well. Since you previously had the 200 and then bought the AP1200, I assume there was some issue with the 200 that you found problematic? I know the 200 is much more "tweeky" and requires much more fiddling around with the gears, etc., to get the best from it. I'll say that I think the HGM-200 is the best "under $7,000" mount I know of. Correct me if I'm wrong! :-) I have also made a tool which attaches to the mount and allows one to polar align while in daylight, which is an aid in places where you are not familiar with the settings and directions, and allows one to get polar alignment close enough that no additional adjustments are needed after dark for visual use, and only minor tweeks for photography. Thereby, I do not have to wait for dark to align on polaris and waste time, nor do I ever have to re-setup because I wasn't close enough to north to reach alignment through the range of adjustment in the mount (necessitating picking up and moving the entire mount). Once dark arrives, I'm totally ready to go! WayneG ----- Original Message -----
From: <C14@...> To: <C14@...> Sent: Sunday, January 13, 2002 3:38 PM Subject: [C14] Digest Number 58 had to go through the dealer network for a complete mount from Losmandy. sure nothing has changed in this regard.
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Re: Images Posted to "Files"
apoman60612
Hi, In speaking of ordering the Losmandy Mounts, it used to be that you had to go through the dealer network for a complete mount from Losmandy.
Is this what you did, or did you try to go "Direct through Scott"? I'm sure nothing has changed in this regard. I had previously owned an HGM-200,(1997) and total wait time was one year. I now own an AP1200GTO Total wait time was 23-1/2 months. Mark |
Re: [C14] Digest Number 56
W. Gondella
Hi Ken,
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That's very interesting. I had purchased a Q7 with a proprietary german mount from Questar. The mount never worked and was finally returned in the fall of 2000. I just plain liked the Losmandy for a number of reasons and called Scott and ordered the 200. I had it about 6 weeks later in November 2000. Talk about luck! A month or two later talking to him, he said that I hit him just right on the production run--- there were no more. I think he said a run took about 3 years to complete. With the full mount, digital circles, polar scope, ie., loaded, I think it set me back about $7G. But I'll tell you, I saw the AP1200 at BFSP, and if there was any other mount I would want, that would be it (and maybe the Paramount GT)! :-) PS: Looked at your pix; pretty nice. If you did that on a G-11, you'll be in 7th heaven with the AP1200!! WayneG ----- Original Message -----
Date: Fri, 11 Jan 2002 23:05:05 -0000 |
Re: Images Posted to "Files"
Hi Wayne;
I tried to order the HGM-200 from Scott Losmandy 3 years ago. Waited a year and he didn't seem interested in taking my order! I got on the AP waiting list about that time, which was around January 2000. I was notified in October 2001 of a February 2002 delivery on the AP1200. The mount, weights, polar scope, and a portable pier from Advanced Telescope Systems will run about $9,000! Ken --- In C14@y..., "missyy9" <gondella@s...> wrote: Ken,is havejust not robust enough to handle focal lengths longer than f3.3 them! |
Re: Images Posted to "Files"
missyy9
Ken,
I use a Losmandy HGM-200 with my C14. It is very robust. Both it and the AP1200 have their strong points, but I am curious: 1). Did you consider the HGM-200? 2). How long did you wait for the AP1200? 5). What was your final cost? Thanks, WayneG --- In C14@y..., "kberna1376" <kberna1376@a...> wrote: Doesn't seem like much activity in the "Files" area so I posted afew of my first attempts with the C14-G11 and ST237 Fastarcombination. I will be replacing the G11 next month with an AP1200. The G11 is |
Images Posted to "Files"
Doesn't seem like much activity in the "Files" area so I posted a few
of my first attempts with the C14-G11 and ST237 Fastar combination. I will be replacing the G11 next month with an AP1200. The G11 is just not robust enough to handle focal lengths longer than f3.3 because I usually set up in fairly exposed areas. Comments are welcome. Also, where are the rest of your images? I know you have them! Ken |
Re: Tube Stiffeners
missyy9
Hi Geert,
Thanks for C14 document. I can take apart and fix myself with this info. Yes, it appears to be corrosion of stiffeners. I'm baffled (no pun intended), I keep the scope in the case, in my house, in a controlled environment. I spent $185.00 last year to return to Celestron for warranty. They replaced stiffeners and cleaned things up, but sent back badly collimated and now problem has returned. Though scope still under warranty, as I always say, if you want it done right, you must do it yourself! Best Regards WayneG --- In C14@y..., "geert_vdbulcke" <geert.vdbulcke@s...> wrote: Hello,outside temp and humidity in the observatory. |
Re: Tube Stiffeners
geert_vdbulcke
Hello,
I don't exactly recall where I got it, but I uploaded an Adobe Acrobat document to the file section containing instructions for dissassembly of a C-14. About the tube stiffeners you have an aluminum corosion problem I think, it does not happen on my scope which is always at near outside temp and humidity in the observatory. Best regards, Geert Vandenbulcke |
Tube Stiffeners
missyy9
Hello Group,
I purchased a new C14 about a year ago and the tube stiffeners turned white within a short time and dropped white powder all over the inside of the tube. I had them replaced and now the new ones are starting to do the same thing. If you look into the corrector, these are the short curved pieces of metal at 12 and 6 o'clock just behind the corrector and at the back of the tube. This is where the dovetail connects to the OTA. I am interested if others have had this problem? It looks like the metal is corroding, (the white is actually little balls of matter on the otherwise black (painted) surface) yet the scope is very well maintained and stored. Couldn't have better care. I want to take the corrector and back assymbly off to clean and fix myself. Is there a source which gives detailed instructions on how to disassemble a C14? Thanks in advance, WayneG |
Re: focuser adjustments?
--- In C14@y..., "cgentryz" <tx_sky_watcher@a...> wrote:
Hello,focuser, perhaps using the 3 screws?Hello Chip, The three screws hold a thin cup (focus knob bracket) to the rear casting. The thin cup holds a set of duplexed BB races which a brass or bronze nut is captured. The focus adjustment knob is fixed to this nut. As one turns the adjustment knob and thus the nut, a lead screw moves that is attached to the primary slider assembly. Loosening the three screws allows the duplexed BB races to have some radial movement. Sometimes the nut or part of this assembly can bind against the rear casting or the nut is not concentric with the lead screw. By slightly loosening the screws and moving the focus knob, then retightening, binding may be eliminated or the nut can become concentric with the lead screw. Don Clement Running Springs, California mailto:clement.focuser@... |
focuser adjustments?
cgentryz
Hello,
The focuser on my C14 is slightly stiff in turning. I see there are 3 screws holding the focus knob bracket against the base of the OTA. Are there any adjustments possible on the feel of the focuser, perhaps using the 3 screws? I have found that if I grasp the focus knob at its base and apply a slight amount of pressure on the focus knob away from the OTA base, the turning feel is improved. Thanks, Chip |
Re: [C14] opening a c14
astrodanco
--- In C14@y..., "donald_clement" <donald_clement@y...> wrote:
By not communicating with me directly, using a public forum toWell Don, in my own personal opinion, I think you're over reacting. To me, your post almost reads like an implied personal threat from you to me. However, I'm going to ignore that. Someone asked me (for the first time that I recall) what I thought, and I answered honestly right off the top of my head. That is all. Please don't attempt to deny me my own thoughts or my freedom to answer a simple question simply and honestly without my having to either write a book on the subject (which I'm not inclined to do in public or in private with anyone) or clear it with you first. I certainly didn't and won't ever reveal any proprietary secrets. I would indeed rather have my scope back in it's original condition. I see nothing wrong with that. Please refer to our written agreement. Everyone should absolutely positively take note that I have NOT said anything bad about about Don, his focuser, or the quality of his work in either my immediately prior post or this one. If you wish to know more about Don, his focuser, or the quality of his work, the correct porson to ask is Don, not me. I have complete trust that Don is forthcomming, honest and humble. If he wants to write a book on the subject, he probably can. Nothing whatsoever should be implied from amything that I have written other than the fact that it's represents my own peculiar, personal and until now, rather terse opinion. - Dan OTANo. In fact, I'm going to ask Don to remove it and restore the >> to its original configuration. |
Re: New C14 Owner
rdcrisp
--- In C14@y..., "garynburk" <garyburk@h...> wrote:
Hi Richard,move as the scope tracks across the zenith? Well yes and no. You can lock the mirror down, some have come up with mods to do this. Mostly I am speaking from the perspective of just not using the primary focuser: get it close with the primary focuser and then use the secondary focuser from there. That's what I was talking about. rdc |
Re: [C14] opening a c14
Dan,
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By not communicating with me directly, using a public forum to discuss this, not even stating what the specific performance problems are and how you tested the performance, it appears that your only intention has been to damage my reputation and the reputation of my focuser. I await your private communication with me concerning this matter so that we can resolve any outstanding issues. This is the first time since the beginning of October that I have had any communication about the performance of the scope after the installation of my focuser and correction of an initial BFL spacing problem. Even still, you have not communicated directly with me. Specifically, you have not communicated what those problems are. It seems inappropriate to discuss this in a public forum without having first allowed me to address the problems you are having. I have never had the opportunity to test the installation of my focuser in your scope, since I was never given the complete scope with mount to evaluate the performance of the scope after installation or even evaluate the scope before installation of my focuser. From the beginning, you were aware that this was a prototype with all of the ramifications that building a prototype involves. There are always some corrections, tweaking, and fixes when dealing with new inventions and building prototypes. This was an adaptation of my invention to your specific scope and your failure to communicate those problems to me has not allowed me to address those issues. I have been in the middle of selling my home in San Diego, dissembling my shop, and moving back to Running Springs; but you have always had my email address and phone numbers. I have always been available. Without question, as per our agreement, I will restore your scope to its original configuration. However, I would like the opportunity to test the focuser's performance in your scope and determine what the problems are, which was also part of our original agreement. Donald Clement Running Springs, California mailto:clement.focuser@... --- In C14@y..., "astrodanco" <danco@p...> wrote:
--- In C14@y..., "garynburk" <garyburk@h...> wrote:Hi Dan,his |
Re: [C14] opening a c14
astrodanco
--- In C14@y..., "garynburk" <garyburk@h...> wrote:
Hi Dan,his CCF on your C14.performance? No. In fact, I'm going to ask Don to remove it and restore the OTA to its original configuration. - Dan |
Hello All!
jpgold881
Hi,
Wanted to say Hi. I own a C14, C11, C5... I now have my C14 on a Paramount instead of my G11. The G11 worked good for optical work but for CCD it was too small and I wanted goto. I have built a backyard observatory to house my C14, Paramount with a Apogee AP7p. Jon Centennial Observatory #447 www.kiowaobservatory.org |
Hello All!
jpgold881
Hi,
Wanted to say Hi. I own a C14, C11, C5... I now have my C14 on a Paramount instead of my G11. The G11 worked good for optical work but for CCD it was too small and I wanted goto. I have built a backyard observatory to house my C14, Paramount with a Apogee AP7p. Jon Centennial Observatory #447 www.kiowaobservatory.org |
Re: [C14] opening a c14
garynburk
Hi Dan,
about 6 months ago you wrote that you had Don Clement install his CCF on your C14. Having had some time to use it, are you pleased with its performance? Regards, Gary Dan wrote: Don Clement (donald_clement@y...) recently disassembled my C-14has also created a computer model of the C-14 OTA. |
Re: New C14 Owner
garynburk
Hi Richard,
A Crayford focuser certainly seems like a good idea, and I'll probably get one if my wallet ever recovers. However, I don't understand how this stops "mirror flop". Won't the mirror still move as the scope tracks across the zenith? (Richard Crisp wrote:) You can buy a crayford focuser and that will solve the problem. Ihave 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.... |
Re: New C14 Owner
rdcrisp
--- In C14@y..., "garynburk" <garyburk@h...> wrote:
Hi Richard,will perform OK on the C14. They are both made for 1.25 eyepieces, IHmm, I have not used the Optec focal reducers, but the Meade and Celestron ones are really designed for ccd imaging. This is particularly so for the f/3.3. The 3.3ones are notorious for the criticality of their placement relative to the imaging chip. If they get too far away expect generous amounts of off-axis coma. I have nearly given up on my 3.3 reducer. I have one more experiment to try, and if that fails, I will give up on it. with color filter wheel, purchased for Fastar imaging on my C8, itSTV 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 amatuerof us setup, my partners use an FLI back-illuminated CCD and aAppogee, so I can try those out easily. I've purchased an AP900 GoTo mountLosmandy The CI700, as a friend said in a private email, sucks for use with the C14 for imaging. Celestron is in major denial on this. You will like your AP900, but I'd have found a way to dig up the extra $1500 and get the 1200.... |
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