Last updated: 29 January 2003
Subject: Upgrading ETX 105/UHTC Sent: Wednesday, January 29, 2003 0:39:49 From: firstname.lastname@example.org (Siegfried Gonzi) I am a little bit baffled in navigating the site. I hope it does not mind you if I ask whether it is possible to put the following question forward to the discussion's section: == Hi: Anybody any good ideas how to turn the ETX 105 into a better wide field performer? Yesterady, I took delivery of my eyepiece special from Meade (30th anniversary) and now I am contemplating to trade this 8 eyepiece-case for a wide field eyepiece: - Nagler type? - or the 56mm eyepiece (52 of field) from Meade Normally, Deep Sky does not require that much on wide field especially on tight objects. But sometimes it would be desired to enjoy a complete Pleijades field of view. S. GonziMike here: I haven't used it on the -105 but you might check out the Shutan Wide-Field Adapter Adapter (discussed on the Accessory Reviews - Showcase Products page).
Subject: 105EC Electric Focuser Sent: Monday, January 27, 2003 20:40:11 From: email@example.com 1/27/03 The Meade 1244 Electric focuser that was designed for the 90-series (and mistakingly thought to have worked on the 105) has been re-designed and now works properly on the 105EC without any problems. The new design uses a small teardrop-shaped plastic "mounting plate" between focuser and scope. The housing of the focuser itself looks the same but there is no longer a 1-inch-or-so plastic stud extending off the back of the focuser housing. This new style focuser is available now from stock. Sincerely, Bob Shutan Shutan Camera & Video www.shutan.com
Subject: Meade ETX 105EC Autostar and thanks. Sent: Saturday, January 25, 2003 9:12:37 From: firstname.lastname@example.org (Nigel SMITH) First of all hello from Tobermory in Scotland and a big thank you. As a new proud owner of a 105 I went to set up the autostar and (you guessed it), no 105 in the data base. Frantic search of internet and you arrived out of the electronic ether with an answer. I must say how impressed I am with the autostar. Once I got used to the set up it unerringly took me where I wanted to go an apart from some "operator induced error" it works perfectly. No doubt I will be back with some questions but for now thanks for a great site. Regards. Nigel Smith
Subject: ETX105 Image Shift Sent: Friday, January 24, 2003 20:32:21 From: email@example.com (John and Laura Matuszak) I am just starting on this fantastic hobby, and your website is wonderful. Its the reason I bought an ETX. Can you clarify what is an acceptable amount of image shift. I have the 105Ec and I have read Ric's posting regarding image shift. Unfortunately, I don't live near Switzerland, so I can't take the scope there. When I first turn the focus know either left or right, the image shifts to the left or the right, but then stays in about the same place. The image shift about a 1/3 of the FOV using 26mm with a 2x Barlow. Is this acceptable or normal? Will a flexi-focus help? Is there any lubrication necessary? Thanks.Mike here: That amount of image shift seems too much. I suggest exchanging it with the dealer.
Subject: ETX-105 Image Shift update Sent: Monday, January 20, 2003 3:54:30 From: firstname.lastname@example.org (ric capucho) I thought I'd give you an update with regards to the dreadful image-shift problem I was having with my ETX-105. Thanks to your advice, I wisely declined to break into the OTA of my warranty-expired ETX-105, and got it to someone with the necessary skills: that turned out to be a guy called Bertrand at Galileo-Planet at a place called Morges, near Lausanne, here in Switzerland. Bertrand told me to leave it with him, and to go for a loooong lunch. After a couple of hours (burp) I returned to find a beaming Bertrand, with my 'scope declared 'fixed', all for CHF 50. That's the equivalent of 20 or $30, so a real bargain. Tested it on Saturday evening, and what a dramatic difference. I really have problems detecting any image-shift at all with the 26mm SP, and very little with a 12mm Nagler. Even with the 7mm Nagler, there's only a small shift, say around 5% of the FOV. An amazing difference, seeing as previously the image used to leave the field of view entirely, even with the 12mm Nagler! Thanks again for the help. Ric Capucho
Subject: Fwd: Removing the Optical tube of the ETX 105 Sent: Saturday, January 18, 2003 14:29:16 From: email@example.com (Fernando Pertuz) To: firstname.lastname@example.org (Clay Sherrod) Clay, I would like to share with you the procedure provided by Bruce Dickson for removing the OTA off the ETX 105. In doing so I would like to thank Bruce for his help as it really simplifyed the task and made it significantly less risky. Saludos, Fernando Pertuz Barranquilla, Colombia __________________________________________________ From: "Bruce Dickson" (email@example.com) Fernando, I picked up Dr. Sherrod's response to your question. I found that the only safe way to remove the ETX 105 from it's mount is to remove the left fork arm (which is described on Mike Weasner's site at http://www.weasner.com/etx/techtips.html.) I've copied a message I sent to Mike some months ago that describes the procedure. [copy removed from email] I suggest that you do not remove the telescope unless you have a _very_ good reason. This is particularly true because the 1/4" mounting is not very securely mounted to the optical tube, and there is the potential to cause a lot of damage. regards bruce Bruce Dickson Midrand South AfricaMike here: There are two "Inside the ETX-105" articles on the Telescope Tech Tips page, including Bruce's article.
From: firstname.lastname@example.org (Clay Sherrod) This is of course the preferred and only safe way of removing the 105 tube assembly; however, as the text implies this is NOT something that should be done by the casual user; there are entirely too many wires and small parts that can become sheared or broken (lost) if extreme care is not taken. Frankly, for the 105 and 125 newer models I do NOT recommend any disassembly at all....the tune up series for ETX scopes do not apply whatsoever to these new models. They are designed totally different and as those who are using them know.....they have their own sets of idiosyncrasies and problems. The new metal-bearing 105 and 125 models are incredibly complicated to tweak and Supercharge.....even if you have experience tinkering in small places and feel confident lurking within these machines, the problems that I have identified with these telescopes are NOT focusing on one "bad area" at all....normally it is a series of small multiple adjustments and alignments that need to be made to assure proper operation. I highly discourage anyone from attempting a self-tune-up on the new model ETX 105 or 125. Dr. Clay Arkansas Sky Observatory www.arksky.org MPC/cbat Obs. H43 / Conway MPC/cbat Obs. H41/ Petit Jean Mt.
Subject: ETX 105EC Viewfinder Sent: Thursday, January 16, 2003 11:46:55 From: Kevin.Roberts@NBPCD.com (Kevin Roberts) Kudos on such a fantastic site. I have probably logged about 60hrs of reading time in last couple months! I have a general question on the ETX 105EC right angle viewfinder. I noticed the other day that the lens section will easily pop off in your hand and doesn't appear to have any mechanism for tightening it. Is this a normal thing or is my viewfinder defective? Other than that, I have had clear sailing with my 105. (thanks of course to the alignment tips from your site). Was going to do some comet Kudo-Fujikawa viewing this week but the temps here in Thunder Bay have been -30C each morning! Sure eats the batteries. Thanks again Mike. Cheers, Kevin.
Subject: Re: horizontal rotation of ETX-105EC Sent: Tuesday, January 14, 2003 17:32:26 From: email@example.com (The Bostons) Dick, THANK YOU!!!!! After loosening the horizontal lock nut several clicks and applying minimal force in turning the scope on its base, there was a very faint "click" and the scope began to rotate freely. I can't believe I fixed something!!!. THANKS THANKS & THANKS. Mike, your page is more important than you can understand & I'm forever grateful for the support it provides. Respectfully BBostonAnd:
Empowerment -R- us. Next lesson: using a bent paperclip to add overdrive to your car's automatic transmission. have fun --dick
Subject: re: horizontal rotation of ETX-105EC Sent: Saturday, January 11, 2003 11:03:32 From: firstname.lastname@example.org (Richard Seymour) To: email@example.com Before you send it back... the manual may describe a procedure for removing the RA clamp handle, and repositioning it 60 degrees "tighter" or "looser" to allow more travel. You might try that first. In your case, Swing the handle to the "loose" end of travel, unscrew the locking screw, lift the handle, rotate it one "stop" in the air, and then put it back down on the base. Now (before tightening the lock screw), try rotating/loosening the clamp the extra distance the new handle position allows. If the base now allow free rotation, you've fixed the problem (or at least have hidden the symptom). good luck --dickMike here: Good point Dick. There is a reverse discussion of this on the FAQ page.
Subject: re: ETX-105EC Focusing Sent: Saturday, January 11, 2003 11:03:27 From: firstname.lastname@example.org (Richard Seymour) To: email@example.com Be aware that (in the past) the electronic focuser Meade sold for the ETX-105 **DID NOT FIT** the telescope. I do not know if they have corrected the problem by bringing out a new model focuser... but the ones designed for the ETX90 and ETX125 did NOT work with the ETX105. Unless it has been resolved (and nothing i've seen leads me to believe it has), be sure to have "full refend return" ability if you buy a Meade electric focuser "for the ETX105". Good luck --dick
Subject: Grinding 105 Sent: Saturday, January 11, 2003 4:48:14 From: firstname.lastname@example.org (karengary) Many thanks for your prompt reply re: Polar mode. Since reading your reply, I have simulated polar alignment indoors and pointed at an imaginary star in the living room and left it running for some time. But my ETX-105 still refuses to track. Something else now seems to have gone wrong. I have levelled the tripod (884) and levelled the tube and reset the dec scale to zero.It now appears my scope refuses to move above 87degrees (either manually or with controller) and a horrible clicking sound can be heard from the declination lock. Does this sound like the scope needs to be returned as its only 3 weeks old? Many thanks again GaryMike here: I would suggest exchanging it.
Subject: horizontal rotation of ETX-105EC Sent: Friday, January 10, 2003 15:34:28 From: email@example.com (The Bostons) The horizontal lock on my new scope is disengaged (all the way counterclokkwise) but the scope won't rotate manually on its base. It moves electronically but I think it may rotate beyond 360 degrees. Any suggestions? ThanksMike here: The telescope is supposed to rotate beyond 360 (almost 720 degrees, in fact). But if you can't move it with the axis unlocked then there is something wrong. Since the scope is new I would recommend exchanging it with the dealer.
Not the news I wanted to hear but thanks. Have you heard of this happening before?Mike here: Only if something broke off or got caught during shipment or use.
Subject: ETX-105EC Focusing Sent: Thursday, January 9, 2003 19:42:03 From: firstname.lastname@example.org (The Bostons) My ETX-105EC is far more fabulous than anything I ever dreamed of owning. And, I don't even have optional eyepieces yet. Can't believe the clarity of Moon craters nebulas and clusters. The hand controller that came with my 105 has "FOCUS IN OUT" indicator buttons. Do these function? Is the optional #1244 Electric Focuser required for electronic focusing? If so, why did Meade put these buttons on the "standard equipment" hand controller? Thanks for your support. You've been a great help to this novice.Mike here: Yes, the optional electronic focuser is required. They show the buttons since the focuser can be used with the standard handcontroller (as well as the Autostar).
Subject: Re: Stops Sent: Monday, January 6, 2003 7:17:05 From: email@example.com (Ian Docherty) Hope you had a good christmas and new year with better weather and skys than sunny ! (not) Scotland. Another newby question for you, hard stops in both axis on the ETX 105 ?, I dont seem to have a stop on the declination of the telescope in either manual or motorized movement, but there is one in the other axis, is that correct. Also with the autostar, finding it fairly accurate ! Sitting the scope on a fairly level table out the back of the house and after reading othe peoples comments on being none to impressed with it all I can say is go out and buy one!, even with its minor discrepancies it is far quicker at finding things than I ever was !! Anyway, my question is the setup of the thing, it did not list the 105 as an available telescope, so I chose the 125 and changed the focal length figure in one of the sub menu options, all drives have been trained etc also. Is there anything else I should be aware of to change in the settings, also would you know if the latest updated software lists the 105 and is it worth getting the cable connector to upgrade, is there anything majorly improved ? Thanks and clear skys IanMike here: I don't have an ETX-105EC but I would think that there should be a hardstop on the Altitude axis. And yes, the current Autostar ROM has the -105. Getting or making the cable (info on the Autostar Information page) is a worthwhile addition. Meade corrects bugs and adds new features as well as updating the object parameters.
Subject: Colours in M42 Sent: Friday, January 3, 2003 1:56:13 From: firstname.lastname@example.org I had my 12" LX200 with me for the eclipse at the beginning of last month. I saw pink and blue in M42 - as did several people with me. The telescope was set up at f/6.3 and about 60x magnification. The sky was incredibly still, transparent and dark. There was a fair bit of ambient light around us, so our eye's couldn't have been fully dark adapted, and this _may_ have kept our eyes in colour mode. The colour was very grainy - So I presume it was right on the limit of visual colour detection? BTW - I got Saturn and M1 in the same field of view last night using my ETX 105. I could still see M1 although it was really dim in comparison. The Cassini division was easily visible, as were some bands on Saturn. clear skies Bruce
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