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Re: I have switched to the Dark Side (was: [C14] Digest Number 63)
missyy9
Hi Paul,
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I wrote a long and thoughtful reply to some of your points, but unfortunately, my firewall timed out and had disconnected me from the internet traffic (though modem still connected), for security reasons. Usually this is no big deal. When I "send" and it gets blocked, I just click my firewall icon to unlock and resend. But I hit "preview" to read my post before sending (I'm borderline type A and actually check for spelling errors :-), and it came up with a screen: "page unavailable, server not found," or something like that. Well thanks to Yahoo!, when I unlocked my firewall and tried to go back to my screen with the post, my whole post had gotten dropped and apparently lost forever! It was just dumped, forever gone in cyber-nothingness! Anyway, I'm of no mind to try to rewrite the whole thing, just let me finish as I did before by saying that the G11 is a good choice, be sure to get the adjustable legs, I think they're the way to go, and welcome to the group! If you can afford (or want) 2 or 3 different scopes, the C14 makes an excellent choice in that happy triumvirate! I consider it the largest aperture, one-man transportable, fully- mounted (read: non-dobsonian) telescope out there. Happy Viewing! WayneG --- In C14@y..., "paulatkinson22" <paulatkinson22@y...> wrote:
Wow. That was quite a welcome Wayne. |
Re: I have switched to the Dark Side (was: [C14] Digest Number 63)
paulatkinson22
Wow. That was quite a welcome Wayne. In any event, although I can
appreciate you view I don't neccessarily agree. I tend to look at things a little differently. There is plenty of banter in the user groups of who stole what, and who copied who. Bottom line, in my honest opinion, is that the astronomers have reaped the rewards of this competition. Certainly there are good products and bad. Can you imagine where we would be if Meade and Celestron had merged. Ah, but the government in their wisdom claimed a monopoly would result and forbid it. But I digress. Anyway, the choices and quality, if you are willing to pay the price, far surpasses what was available just 10 years ago. My choice for Celestron was that I am progressing up to a larger scope, it was in my price range, and it is an excellent product. I have owned a Meade 8, 10, 12 LX200 and they were all first rate and Meade service was outstanding. My 12" had great optics and fantastic goto. I did not have a single problem. Now I am moving up, and in my opinion, the C14 provides the best value for the money for the OTA. However, Celestron is SERIOUSLY lacking in the mount and tripod arena and is definately playing catch up in a lot of others. As such I am going with a G11 with goto until I can get my hands on an AP900 or 1200. There can be no denying they make probably the finest SCT optics (accept Questar) that you can buy. However, their accessories are far lacking. Poor ep's, less than stellar diagonals and barlows, etc. That is the beauty of our hobby. Where one company might lack in one area another picks up the slack. I owned Meades but had all Televue ep's and barlows, Lumicon filters, JMI and Losmandy accessories. I could combine the best of everything. I am not interested in all the politics. To me Wayne, it boils down to this. I am not interested in all the deliberations of what company did what, or who has the better marketing team. Astronomy is my hobby and my relaxation. As such, I am interested in getting the best for my money and enjoying the product, whoever happens to make it. Looking forward to the Celestron family. Paul --- In C14@y..., "W. Gondella" <gondella@s...> wrote: I must say this is really the funniest post I've read anywhere in along time. OUCH! Still can't stop laughing! :-) I really hate tosully it by bringing out these sobering comments though:*Bright* side? 2). You only had Meades for the past 12 years? Hell! What tookyou so long? I say that because after more than 30 years in this hobby,I've NEVER owned a Meade, save for a 90mm (chinese made I'm sure) refractorf/10 which came mail order dirt cheap, threw away the mount, rebuilt it headto toe and put a 2" focuser on it to make a decent little guide scope. Whilemany praise Meade for "popularizing" astronomy, all I see in them, IMHO,is a company built on (mostly) other people's ideas and successes (the C-8, the suspiciously similar to Nagler UWF eyepieces (which have notchanged since their inception), the oh so Questar-like ETX, and so on). Theyhave forced many other companies to lower their standards, IMHO, producingcheaper and less well built telescopes in order to remain competitive withMeade. Their customer service sucks, they claim to have either done everythingfirst or best, and, IMO, control, manipulate and dictate the market with bigmoney and controlling ties to the major sources of astronomy media andmarketing. I know there are many which would disagree with me, or even likeMeade for what they do and have done, but this is my opinion, based on 33years experience and information sources high in the industry. The onlygood thing I can say about Meade is that they have a very aggressive andrevenue to the point to finance and develop some damn good amateur products forthe money, mostly their goto and electronics. They epitimize everything Idon't like in a company, successful or not, good product or not.unpolished edges to some of their new products. But like Avis, they keeptrying (despite Tasco). I hearken back to the glory days when the 'little'vast C-22, professional, research-grade scope (about $19,000 if Iremember right!) with on-site instruction.deepsky. The two best things you can do for it is to get yourself the best andlargest mount you can stand and put an insulated dew shield on it, not oneof those kydex things. The f/7 corrector/flattener is also a great idea.Oh, as a side note--- don't worry guys: you won't suffer too much underpressure to perform, just take the lens cap off and point it at something andfocus with a good eyepiece. Even my buddy with a 24" StarMaster drools overmy C14 and the views within. And frankly, I'll take the C14 anyday. :-)we acan drop this facade. The truth is that this entire C14 group has wemirrored lawn ornament ball wedged into the bottom. AH HA HA HA - justgot another one!!!! nowgot mine mounted on an AP900 and, although no serious testing has hadhave no excuses. In a world where users of 8" SCTs and even 4" withoutthought that perhaps the AP900 was on the small side and could be tohalf trying. I've been perusing the group archives for excuses hereno avail so far. Perhaps we can exchange war stories as the C14 spendin a week. Having only owned Meade's for the past 12 years itseemskind of weird, like I am leaving my wife. However, I hope to getalot more time here and meet lots of new people. I have heardnothingbut excellent things about the C14 optically and can't wait to collimationmyhands on this beast. By the way can somebody tell me what thethreelittle knobs on the back of the OTA are. Are they for ______________________________________________________________________orsomething? __ ______________________________________________________________________ __
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Re: I have switched to the Dark Side (was: [C14] Digest Number 63)
W. Gondella
I must say this is really the funniest post I've read anywhere in a long
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time. OUCH! Still can't stop laughing! :-) I really hate to sully it by bringing out these sobering comments though: 1). Paul, what makes you think you haven't switched to the *Bright* side? 2). You only had Meades for the past 12 years? Hell! What took you so long? I say that because after more than 30 years in this hobby, I've NEVER owned a Meade, save for a 90mm (chinese made I'm sure) refractor f/10 which came mail order dirt cheap, threw away the mount, rebuilt it head to toe and put a 2" focuser on it to make a decent little guide scope. While many praise Meade for "popularizing" astronomy, all I see in them, IMHO, is a company built on (mostly) other people's ideas and successes (the C-8, the suspiciously similar to Nagler UWF eyepieces (which have not changed since their inception), the oh so Questar-like ETX, and so on). They have forced many other companies to lower their standards, IMHO, producing cheaper and less well built telescopes in order to remain competitive with Meade. Their customer service sucks, they claim to have either done everything first or best, and, IMO, control, manipulate and dictate the market with big money and controlling ties to the major sources of astronomy media and marketing. I know there are many which would disagree with me, or even like Meade for what they do and have done, but this is my opinion, based on 33 years experience and information sources high in the industry. The only good thing I can say about Meade is that they have a very aggressive and effective marketing team, and have thus built their sales and revenue to the point to finance and develop some damn good amateur products for the money, mostly their goto and electronics. They epitimize everything I don't like in a company, successful or not, good product or not. The worst thing Celestron seems to be guilty of is consistently bad marketing, playing catch-up too often, and some poor starts and unpolished edges to some of their new products. But like Avis, they keep trying (despite Tasco). I hearken back to the glory days when the 'little' Celestron was the 10" on steel pier, the intermediate C-16, and the vast C-22, professional, research-grade scope (about $19,000 if I remember right!) with on-site instruction. 3). On a high note, the C14 handily outperforms the 12" LX on deepsky. The two best things you can do for it is to get yourself the best and largest mount you can stand and put an insulated dew shield on it, not one of those kydex things. The f/7 corrector/flattener is also a great idea. Oh, as a side note--- don't worry guys: you won't suffer too much under pressure to perform, just take the lens cap off and point it at something and focus with a good eyepiece. Even my buddy with a 24" StarMaster drools over my C14 and the views within. And frankly, I'll take the C14 anyday. :-) Controversial as always, WayneG Date: Tue, 22 Jan 2002 03:15:02 -0000 |
Re: It's official. I have switched to the Dark Side!
garynburk
Hi Paul,
You've made all of the others on the C14 group very happy. Now we can drop this facade. The truth is that this entire C14 group has just been a ruse perpetrated by the evil Celestron kingdom to sow chaos and dischord amongst Meade owners. In fact, LX-200 12" (now just a fond memory to you)is at the pinnicle of all amatuer telescopes, whereas the C14 you've just bought at an exhorbitant price is little more than a 14" diameter wastebasket with half of a mirrored lawn ornament ball wedged into the bottom. AH HA HA HA - we got another one!!!! Mazeltov! I am also a new owner, lured by the praise of other owners and the fact that it is the largest SCT I can afford. I just got mine mounted on an AP900 and, although no serious testing has been done, I think it's going to be great. The biggest problem I'm aware of is that my astro-buddies have frequently observed that I now have no excuses. In a world where users of 8" SCTs and even 4" refractors deliver great images, the burden is on to perform. I had thought that perhaps the AP900 was on the small side and could be blamed for problems, but having tried it out that is certainly not the case - it seems to be a rock and hauls that beast around without half trying. I've been perusing the group archives for excuses to no avail so far. Perhaps we can exchange war stories as the C14 experiance develops. Good Luck and welcome to the Fastar side. Regards, Gary --- In C14@y..., "paulatkinson22" <paulatkinson22@y...> wrote: Well I sold my 12" LX200 and purchased a C14 today. Should be hereseems kind of weird, like I am leaving my wife. However, I hope to spenda lot more time here and meet lots of new people. I have heardnothing but excellent things about the C14 optically and can't wait to getmy hands on this beast. By the way can somebody tell me what thethree little knobs on the back of the OTA are. Are they for collimationor something? |
Re: [C14] It's official. I have switched to the Dark Side!
Ron and Sally Golubosky
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It's official. I have switched to the Dark Side!
paulatkinson22
Well I sold my 12" LX200 and purchased a C14 today. Should be here
in a week. Having only owned Meade's for the past 12 years it seems kind of weird, like I am leaving my wife. However, I hope to spend a lot more time here and meet lots of new people. I have heard nothing but excellent things about the C14 optically and can't wait to get my hands on this beast. By the way can somebody tell me what the three little knobs on the back of the OTA are. Are they for collimation or something? Paul Atkinson |
C-14 Quality
geert_vdbulcke
From: "W. Gondella" <gondella@s...> Dear Paul and group: I would have to mirror (no pun intended!) Ken's remarks as far asHi Group, This remark by Wayne just about reflects my experience. I had a custom made 10" f/15 excellent optical quality Opticon SCT. I owned both my (second hand) C-14 and this Opticon for about 6 months at the same time, comparing both instruments under similar conditions. While the Opticon was better corrected overall than the C-14, the quality of my C-14 and it's bigger aperture also makes that I am happier with the C-14 (a scope I have been wanting for many years...). Best regards, Geert Vandenbulcke Belgium |
Re: [C14] Digest Number 61
W. Gondella
Dear Paul and group:
I would have to mirror (no pun intended!) Ken's remarks as far as the C14 goes. My former scope was an $11,000 Questar Seven OTA with a strehl ratio of .95 at the eyepiece. Though this was an extraordinary optical instrument to be sure, I am happier with the C14. The image quality has far surpassed my expectations, considering the size/price ratio. It does very, very well on the planets, and is nothing short of breathtaking on deep-sky. I haven't found cool-down to be an issue either. I find the scope cruises along at 300X (13mm Nagler), and far higher powers are possible. Visually, DS objects look like photos (no averted vision needed), and with one of my Collins I3Pieces in place, it rivals a 40 inch scope on many objects! Globulars are stupendous! As far as mounts are concerned, the CI-700 is entirely maxed out with the 14. This mount is barely sufficient for casual visual use, nothing more. To try for more will only lead to futility and frustration. The G-11 is slightly better. I use a Losmandy HGM-200, which I consider just adequate. This takes the instrument to a 350 pound package. I would think a permanent site with the C14 on a Parallax HD-300 (solid 3" shaft) would be ideal. Mind you, my criteria is stringent--- I expect no vibration or blur in focusing on a planet at 300X with my fingers on the focuser. The HGM-200 proved a superb mount for the 22 pound Q7; you could thump the tube with no visible movement in the image. I have a CI-700 (bought seperate as a back-up/auxillary mount), and it is exemplary with my 127mm Apex Makutov. To its credit, the 700 has also been used (and proved servicable) with a 60 pound newtonian tube assembly on it, albeit, with considerable shakes! But I pulled it off, and didn't feel like the tube was in jeopardy. Just watch that the dovetail remains really tightened down and you have perfect balance and good clutch tension (all difficult to achieve with the 700). It is my opinion that mounts such as the AP1200 or HGM-200 are ideal. A mount such as the CI-700 is a budget mount, which will get you up and running, but has a limited lifetime (premature wear-out) under the strain of handling the 45+ pound weight of the C14. As far as my bearings, Mark, this is something I will investigate. It is my impression that the bearings appear pressed correct, and that the bore for both was done in a single operation. If necessary, I'll take the assembly to a friend who has a huge industrial machine shop for evaluation. The dec shaft seems to slide on/off pretty easily until it gets back to about an inch from the fully seated position. I have not looked at it for a long time and will reserve judgement until further analysis. The tube stiffeners in the C14 come flat black, but mine have developed a white edge, which spreads across the surface and develops into little lumpy crystally white nodules. The first time it happened, the entire stiffener turned white, and the white powder shed and spread all over the inside before it was detected. WayneG distorted somehow when they were pressed in, and this altered their inside diameter spec? not in line with one another, but I don't see how this could happen, as I would assume both bores were drilled/machined at the same time? (Correct me if I'm wrong on this?) Not having my mount anymore to examine it, I cannot recall exactly howthey manufactured this part. Unless one "Halve" of the Dec assembly is bolted to another?, then yes, I could possibly see then that an improper bore alignment could be a possible culprit between the two mount halves, and the two bearings within the Dec Assembly? fit/resistance when dropping the Dec Assembly onto the polar Shaft. it you?) perhaps some other method of plating/finishing them, before installing them (I assume these are supposed to be flat black finish, correct?) Mark |
Re: Feeback on C-14
Hi Kevin. I am curently using a Losmandy G11. That mount is not
solid enough with the C14 at f2 to do CCD in any but the calmest wind conditions It is very difficult to get any acceptable images at longer focal ratios. I am taking delivery of an AP1200 in February which should solve any vibration, tracking or other instability problems. Ken --- In C14@y..., "starmaster08083" <ksbtk@h...> wrote: Good afternoon Ken:it canshows on signs of ware. Mechanically it is very good. There isverylittle focus shift at f11 with the ST237 CCD. Also, the scope bepermanenteasily set up by one person in the field. I don't have a 10-location for the scope, and my set up and take down time is only hole15 minutes! usemask. Results show all angles at .24 waves or less. I am notoptical a8.8mmf7 focal reducer and Meade UltraWide eyepieces. This combo gives veryMeade UW at f11 to give around 440 magnification. Gives reallyand thatwide fields, and very short exposure times. Celestron does notseemto promote this much, but it is a powerful and unique feature iswantnot available anywhere else. tolook. They are really my first efforts, so there is lots of roomforimprovement in technique! |
Re: Digest Number 60
apoman60612
Hi Wayne, To me, It sounds that maybe the Bearings themselves were distorted somehow when they were pressed in, and this altered their inside diameter spec?
Or they weren't seated properly, and are perhaps slightly cocked? The only other thing that I can think of is that the Bearing Bores are not in line with one another, but I don't see how this could happen, as I would assume both bores were drilled/machined at the same time? (Correct me if I'm wrong on this?) Not having my mount anymore to examine it, I cannot recall exactly how they manufactured this part. Unless one "Halve" of the Dec assembly is bolted to another?, then yes, I could possibly see then that an improper bore alignment could be a possible culprit between the two mount halves, and the two bearings within the Dec Assembly? I really think that there should not be any binding, or improper fit/resistance when dropping the Dec Assembly onto the polar Shaft. Perhaps Scott himself could enlighten us/you further on this? On this C-14 Tube Stiffener Block issue (I've heard about this before, was it you?) Sounds to me that Celestron should have powder coated these parts, or perhaps some other method of plating/finishing them, before installing them (I assume these are supposed to be flat black finish, correct?) Mark |
Re: Feeback on C-14
starmaster08083
Good afternoon Ken:
Can you please tell me what mount you have the C-14 on? I have not had real good luck with the C-14 in Fastar mode on the CI-700. Clear skies, Kevin Dixon ksbtk@... --- In C14@y..., "kberna1376" <kberna1376@a...> wrote: Hi Paul. I graduated from a 1979 C8 (with outstanding optics) tothe C14 in March 2000.very little focus shift at f11 with the ST237 CCD. Also, the scope canbe easily set up by one person in the field. I don't have a permanentoptical environment for measurement. I guess all this means is that thea f7 focal reducer and Meade UltraWide eyepieces. This combo givesand Jupiter.seem to promote this much, but it is a powerful and unique feature thatis not available anywhere else.to look. They are really my first efforts, so there is lots of roomfor improvement in technique! |
Re: Feeback on C-14
Hi Paul. I graduated from a 1979 C8 (with outstanding optics) to the
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C14 in March 2000. The fit and finish is excellent. I have used it 30-40 times and it shows on signs of ware. Mechanically it is very good. There is very little focus shift at f11 with the ST237 CCD. Also, the scope can be easily set up by one person in the field. I don't have a permanent location for the scope, and my set up and take down time is only 10- 15 minutes! The optics seem quite good. The Ronche test with 4-5 lines shows very streight and smooth. The star tests are very good and show excellent, to my eye, identical, in and out of focus images. I also used the SBIG Hartman Mask Analysis software with a 24 hole mask. Results show all angles at .24 waves or less. I am not totally aware of all that this software measures. Since the test uses real stars, and also measures all the variables such as tube currents, seeing, etc, I guess it really looks at the entire optical environment for measurement. I guess all this means is that the scope is probably difraction limited as advertised. The scope has a very narrow field of view. For DSO's I usually use a f7 focal reducer and Meade UltraWide eyepieces. This combo gives breath taking views under a dark sky. With good seeing, planets are wonderful. I frequently use a 8.8mm Meade UW at f11 to give around 440 magnification. Gives really outstanding views. The scope does seem to be very sensitive to collimation so I usually tweak it a little before viewing Saturn and Jupiter. I also image at f2 with the Fastar configuration. This gives very wide fields, and very short exposure times. Celestron does not seem to promote this much, but it is a powerful and unique feature that is not available anywhere else. I have some images posted to "files" as "Ken's Images" if you want to look. They are really my first efforts, so there is lots of room for improvement in technique! Ken --- In C14@y..., "paulatkinson22" <paulatkinson22@y...> wrote:
I am giving serious consideration to this scope. I would like some |
Re: [C14] Digest Number 60
W. Gondella
Hello Mark,
This tells me that I indeed do have a slight tolerance problem despite my mic-ing my polar shaft (and finding it exactly the dia. it should be). Perhaps the bearing(s) are off spec? I will soon find out and fix it. As for your injury--- OUCH! What a way to ruin an observing run! There is no doubt that the AP1200 is exemplary in its convenient assembly/disassembly, and in its reliable, smooth, and extremely accurate operation. All reasons that if I were to ever sell my 200, it would most likely be for a 1200. The nice thing about the situation is that if I ever wanted to order a 1200, what better way to kill the 2 year wait than to "suffer through" with my HGM200? The nice thing about it though is that if anything, people see less of, know less of the HGM200 than the 1200. Like I said, not even the dealers mention them. Must not be many out there. Even on Losmandy Users Group they are rarely discussed. As far as my C14 goes, I again have some "corrosion" of my tube stiffeners. Little white crusty-looking balls (crystals?) growing on them. They start at the edge of the metal and spread, though not seen anywhere else. It seems I must take the OTA apart myself and fix it. Curiously, I cannot find anyone else with this problem, and Celestron has not responded to my e-mail requests for info. I guess I will flock the inside of the tube while doing this--- I am torn between adhesive backed flocking right onto the metal wall, and gluing the flocking to some intermediate surface, paper or plastic based, then sliding it into place (thus removable). The latter would be safer and easier, but I wonder about the thermal effects this might have on cool down. I am leaning towards sourcing the flocking from Edmund Scientific. I also wonder about possible shedding of the flock fibers. WayneG Message: 3bearings to the Polar shaft concerning assembly-disassemly other than the fact that you had a hell of a lot of weight to handle once you were free of the shaft. I did occasionally have a problem having the DSC encoder gear mesh properly, and would have to slightly live the Dec Assembly, and then drop it on again. One thing for sure, is you have to firmly "Hold the Dec Assembly before loosening that Clutch! Otherwise, it could be a trip to the Hospital! I banged my head directly on the end of the Counterweight Shaft once when getting up from a kneeling position. Yep, I was bleeding, and all the cussing in the world didn't help ease theimmense pain! Had quite a lump too! regardless of magnifications used. remarkable. I was permitted 2 years ago to personally disassemble Roland Christen's own 1200GTO at an Astrofest Meet. What a joy vs the HGM-200. Also, to watch one in virtual silent operation go from one object to another, slew across the sky effortlessly with large OTA's and see CCD images come up on a screen with pin-point accuracy is remarkable! the asking price. even already have bought a brand new, still in the box Feathertouch focuser ready to go, that has the large 3-1/16" Back specifically for the C-14. Now all I need is the OTA! Mark |
Re: Digest Number 59
apoman60612
Hi Wayne. I myself never did have any problems with the fit of the Polar bearings to the Polar shaft concerning assembly-disassemly other than the fact that you had a hell of a lot of weight to handle once you were free of the shaft. I did occasionally have a problem having the DSC encoder gear mesh properly, and would have to slightly live the Dec Assembly, and then drop it on again. One thing for sure, is you have to firmly "Hold the Dec Assembly before loosening that Clutch! Otherwise, it could be a trip to the Hospital! I banged my head directly on the end of the Counterweight Shaft once when getting up from a kneeling position.
Yep, I was bleeding, and all the cussing in the world didn't help ease the immense pain! Had quite a lump too! I also never noticed any ill effects of vibration with the stepper motors, regardless of magnifications used. In regards to the AP1200, the ease in which these assemble/disassemble is remarkable. I was permitted 2 years ago to personally disassemble Roland Christen's own 1200GTO at an Astrofest Meet. What a joy vs the HGM-200. Also, to watch one in virtual silent operation go from one object to another, slew across the sky effortlessly with large OTA's and see CCD images come up on a screen with pin-point accuracy is remarkable! None the less, the HGM-200 is indeed a fine, solid mount, and IMO worth the asking price. I also have high hopes of one day having my own C-14 OTA on my 1200GTO. I even already have bought a brand new, still in the box Feathertouch focuser ready to go, that has the large 3-1/16" Back specifically for the C-14. Now all I need is the OTA! Mark |
Re: Digest Number 59
apoman60612
Hi Wayne. I myself never did have any problems with the fit of the Polar bearings to the Polar shaft concerning assembly-disassemly other than the fact that you had a hell of a lot of weight to handle once you were free of the shaft. I did occasionally have a problem having the DSC encoder gear mesh properly, and would have to slightly live the Dec Assembly, and then drop it on again. One thing for sure, is you have to firmly "Hold the Dec Assembly before loosening that Clutch! Otherwise, it could be a trip to the Hospital! I banged my head directly on the end of the Counterweight Shaft once when getting up from a kneeling position.
Yep, I was bleeding, and all the cussing in the world didn't help ease the immense pain! Had quite a lump too! I also never noticed any ill effects of vibration with the stepper motors, regardless of magnifications used. In regards to the AP1200, the ease in which these assemble/disassemble is remarkable. I was permitted 2 years ago to personally disassemble Roland Christen's own 1200GTO at an Astrofest Meet. What a joy vs the HGM-200. Also, to watch one in virtual silent operation go from one object to another, slew across the sky effortlessly with large OTA's and see CCD images come up on a screen with pin-point accuracy is remarkable! None the less, the HGM-200 is indeed a fine, solid mount, and IMO worth the asking price. I also have high hopes of one day having my own C-14 OTA on my 1200GTO. I even already have bought a brand new, still in the box Feathertouch focuser ready to go, that has the large 3-1/16" Back specifically for the C-14. Now all I need is the OTA! Mark |
Re: [C14] Digest Number 59
W. Gondella
Dear Ken and Mark,
Thank you for your replies. Let me try to address each salient point individually. * First, the "tool" I spoke of is something I designed and created for myself, though I suppose I could make more if I thought there was a market for them (I am self-employed and envision droves of HGM-200 owners standing in lines waiting for them! :-) Simply put, I usually observe in my backyard where I can gauge North pretty close from sheer experience, but when going out to a remote field, etc., it's anybodies guess from the position of the Sun, etc. Now I like to get there hours before dark, set up in broad daylight, get everything assembled and balanced, then kick back and relax. I find this much nicer than getting there after dark and trying to work by flashlight, etc. This is especially true since my dark site locations are about one to four hours drive, so I plan to get there early and make a night (or weekend) of it. It became quickly apparent that setting up a C14 on the HGM-200, then discovering that when dark arrived, I could not achieve exact polar alignment because I was too far from the limits of azimuth or latitude adjustment travel, could be a REAL PROBLEM necessitating partial disassembly, repositioning and reassembly! So I designed a tool which attaches to the mount and is calibrated to attach to the pier-pod (can be used at any time, but I generally use it just after assembling the legs to the pod, to minimize the handling weight), then guides me to perfect polar alignment positioning. I know that once assembled, my polar alignment will be close enough that no further efforts will be required, and I will certainly be well within the range of adjustments if any are needed. I generally find that polar alignment made this way in daylight is excellent and is close enough that the object will stay in the eyepiece for about an hour (depending on magnification). Which is fine for visual use. For imaging, I know the mount will be at the centers of the adjustment ranges for altaz and will be no problem in precision (drift) alignment, etc. I wish I could say more about it, but I might choose to develop it for sale one day on a variety of mounts, you see! To jump ahead to some of Marks comments, I use the adjustable legs. First, this is one caveat with the AP mount, the very limited range of adjustment. Other than my backyard, most places I obvserve are too unlevel or untamed to set up the AP mount without stacks of blocks, etc, which would be unstable. The HGM-200 is generally used with the legs fully retracted, and I extend the legs in whatever fashion to achieve level (via bubbles). This is actually easier during daylight, too (seeing the bubbles). I generally choose to place pieces of wood or stone under each leg, initially just for cleanliness (dirt, grass, sometimes cowchips!), but it also stabilizes the feet from sinking in soft earth, as you said. * My one travail with the HGM-200 is that it is described as being seperable (declination from polar assemblies) without tools. I find this impossible (I am 6' 1", 245 pounds). I must beat on the dec shaft with a rubber mallet to work it loose, while supporting the top heavy shaft with my body. Further, the saddle plate has sharp corners that hurt after digging into you for a while. I told Scott once he should radius these corners a bit, taking the sharp points away from them. I'll do mine myself. This is where I think the AP mount really excels, in coming apart. I will soon do some careful machining to correct this problem, making the dec shaft removable with normal human strength (and no tools), without loosing the fit in the bearingss or adding play. This is an "art" and must be done by "hand" and by "feel" and is therefore very time consuming and would raise the price of the mount and be impractical from a sales perspective. Of course, the AP negates this with a design which avoids this problem. * On the subject of GOTO, I am no big fan of it, but I understand its lure. The voice recognition software AP has would be like an ultimate dream come true. I have not met anyone who actually uses it, so I do not know how it works. As an EE, I understand the immense potential difficulties with it. With the digital circles, I merely provide the drive myself for slewing. My observing technique is to spend considerable time viewing, etc., any one object. If I were trying to image 100 galaxies per night for supernovae, I would concur. Further, the HGM-200 has excellent setting circles and it is a waste not to use them. I prefer to have a laptop with me, running Sky Map Pro, where it is simple to get the coordinates of any object and read them out on the circles. I find this personally a healthy form of discipline and patience. However, this year I will make the computer interface where the scopes position is read out on the screen, and when you put the "X" on the object (by moving the scope by hand), the object is centered in the eyepiece. This is all I can imagine needing for myself. I tried the Gemini, but did not care for it. I was really after the DC servo motors as an upgrade to the steppers, even though the steppers have not caused me problems. I did not care for the way the motors mounted, coupled and stuck out. Nor did I like the cabling and connections. Plastic does not sit well with me, and the cables were prone to interference and the motors further restricted polar motion. One must set the worm and gear up right for reliable operation. Many people seem to not have the mechanical aptitude for this. The Gemini was well made and designed, otherwise, and operated nicely with a full feature package. I actually wish it had worked out better for me. It was real nice to punch in an object and watch the mount take off after it! Soft-Tec makes a very servicable system that I have looked into and may seriously consider someday, but it requires an outboard computer (486, old laptop, etc.) which is no problem for me (I'll be in my little observatory by then! :-). Hope this was of some help. Best Regards, WayneG Message: 2with sweat, and wanting for a cold glass of lemonade, or Soda! Also the fact that it did need 1-21lb weight just to balance without OTA on board. with the rest of the mount, and Scott evidently could not do nothing with this gripe. waited years with no success of IMO, a properly made GOTO. Rumor had it that once AP, and Scott were going to collaborate, but it never occured. I gather from your post, there is still no GOTO for this Mount? (Gemini?) Everyone I spoke with about this always kept saying ("Oh, we couldprobably do it, but we'll need your mount for the custom retrofit".) evening due to the immense weight of the mount/OTA, the mount would literally sink into the ground! (Affecting critical Polar Alignment) Yes, the 200 I had is missed, but I'm very happy with the AP1200GTO. Mark |
Re: Digest Number 58
apoman60612
Hi Wayne, Nope, I never had one single problem with my HGM-200, which was bought from Spectra Astro-Systems-Dan Gordon (Now defunct)
(With only the very wierd initial occurence noticing that the controller was set-up for S-Hemisphere. Flipping the 2 dip-switches cured this pronto. Yes, I'll agree, the assembly of the two halves used to leave me soaked with sweat, and wanting for a cold glass of lemonade, or Soda! Also the fact that it did need 1-21lb weight just to balance without OTA on board. I had the 60" solid legs (A mistake, should have got the adjustable ones) They were also not a match cosmetically (Many scuffs, and minor scratches) with the rest of the mount, and Scott evidently could not do nothing with this gripe. There were other minor cosmetic issues with mine (Dented Saddle Plate in one corner, Poor Anodizing on Dec Ring Gear Cover that was coming off on a towel when wiped, and a cracked bubble level housing. Scott quickly, and cheerfully addressed these issues for me, and made me happy. I had intially ordered this mount with the hopes of a future GOTO. I waited years with no success of IMO, a properly made GOTO. Rumor had it that once AP, and Scott were going to collaborate, but it never occured. I have not really kept up with the evolution of the HGM-200, but from what I gather from your post, there is still no GOTO for this Mount? (Gemini?) Everyone I spoke with about this always kept saying ("Oh, we could probably do it, but we'll need your mount for the custom retrofit".) One thing I did notice with my HGM, was that after awhile, during the evening due to the immense weight of the mount/OTA, the mount would literally sink into the ground! (Affecting critical Polar Alignment) Yes, the 200 I had is missed, but I'm very happy with the AP1200GTO. Mark |
Re: Digest Number 58
You really did hit it right! I was dealing with Scott direct, but
had no luck! What is the "tool" you use for daylight polar alignment? Sounds really good! Ken --- In C14@y..., "W. Gondella" <gondella@s...> wrote: Hi Mark,directly through Scott. I've found Scott to be extremely helpful andexcellent to deal with. Frankly, none of the dealers even mention the 200. Ifyou didn't know it existed, you would think Los only make the 8 and11. I called Scott and ordered the 200 off of him and was apparentlyextremely 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 TMB6" APO. The AP1200 seems easier to detach the dec shaft from the polarshaft, but I am soon going to machine my 200 to modify it and address thatissue. The 200 has a superb clutch and dovetail system, however the dec axis ISAmphenol connectors and the wire routing is generally a better scheme.However, I like the black anodized machined surface and adjustable pier-podlegs (I'm seldom on the level) of the 200 over the cabled legs withtensioners that AP uses and the white painted cast surfaces, plus the lack of adovetail (though this probably has advantages to the orthogonality of theOTA). And the 200 is less expensive. The steppers have not been a realissue, 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 confessa deep admiration for it. But it is also significantly at a higher costand waiting time as well. Since you previously had the 200 and thenbought the AP1200, I assume there was some issue with the 200 that you foundmuch 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.to polar align while in daylight, which is an aid in places where you are notpolar alignment close enough that no additional adjustments are neededafter dark for visual use, and only minor tweeks for photography. Thereby, Ido not have to wait for dark to align on polaris and waste time, nor do Iever have to re-setup because I wasn't close enough to north to reachalignment through the range of adjustment in the mount (necessitating pickingup and moving the entire mount). Once dark arrives, I'm totally ready togo! that you had to go through the dealer network for a complete mount fromLosmandy. Scott"? I'm sure nothing has changed in this regard.one year.
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