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  • Category: Astronomy
  • Founded: Jul 8, 1999
  • Language: English
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Messages 93973 - 94002 of 119906   Oldest  |  < Older  |  Newer >  |  Newest
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93973 Rod Mollise
rmollise Offline Send Email
Feb 1, 2007
10:59 am
f/35 NOT f3.5...Ol' Jupe don't look like much at f/3.5... ;-) Peace, Rod Mollise Author of: Choosing and Using a Schmidt Cassegrain Telescope and The Urban...
93974 Sam Barziza
b52ceti Offline Send Email
Feb 1, 2007
11:24 am
Been there done that with regards to eyepiece projection on the planets. I had good results with a very low power wide field plossl eyepiece. Then I got me...
93975 Tom Rauschenbach
novitious Offline Send Email
Feb 1, 2007
1:32 pm
OK, the "mini announcement" thread got me thinking. I think many people have a sort anti barlow prejudice, probably because many of them are junk. In looking...
93976 Bill Logan
wb9sat Offline Send Email
Feb 1, 2007
1:54 pm
Bill That's interesting. Forgot about the Navajo and Hopi nations. They see the world in a totally different drum beat. LOL. Clear skies and calm winds, ...
93977 rmollise@...
rmollise Offline Send Email
Feb 1, 2007
2:26 pm
Hi: The Powermates are, indeed, everything they claim to be. I have to disagree with your statement about barlows that "many of them are junk." Amazingly...
93978 Chris Peterson
cloudbait Offline Send Email
Feb 1, 2007
2:38 pm
That prejudice may be left over from the lovely little barlows we remember from our first Tascos. These days most any barlow from a serious manufacturer...
93979 Tom Rauschenbach
novitious Offline Send Email
Feb 1, 2007
3:02 pm
... junk." Amazingly enough, most barlows (above the department store level) being imported today are surprisingly good optically. I will admit, that I've...
93980 Stephen Hoff
greyghost_steve Offline Send Email
Feb 1, 2007
3:27 pm
Not hype. I use a 2.5 powermate often, and a 5x powermate infrequently for prime focus film photography (approaching ~f/64). the powermate unscrews at the...
93981 John Mahony
jmmahony Offline Send Email
Feb 1, 2007
8:53 pm
... That's a mostly outdated idea today. I did notice a significant difference between my Meade shorty barlow and a 2X Televue, but in general there are many ...
93982 Ken Hutchinson
hctuhlk Offline Send Email
Feb 1, 2007
9:29 pm
... I think you did a good job of summarizing several issues in a minimum of space! I have to wonder if Celestron can afford to not respond to the 200R at ...
93983 jdma926 Offline Send Email Feb 1, 2007
11:46 pm
Hi - I just "read" the French report (courtesy Google translate) about the 2 C92.5's that were tested. As some here know, they found that on the better of the...
93984 Rod Mollise
rmollise Offline Send Email
Feb 2, 2007
12:07 am
Generally, corrector rotation is far more important. Peace, Rod Mollise Author of: Choosing and Using a Schmidt Cassegrain Telescope and The Urban Astronomer's...
93985 Tanveer Gani
burdbeen Offline Send Email
Feb 2, 2007
2:45 am
My C9.25 secondary came loose too and Celestron said that the serial# on the secondary should be parallel to the ground when the dovetail side is at the ...
93986 Ken Hutchinson
hctuhlk Offline Send Email
Feb 2, 2007
2:56 am
I see there has been some discussion of this on Cloudy Nights and the folks at Planewave Instruments say its ok to talk freely now so if you have been...
93987 Bill Logan
wb9sat Offline Send Email
Feb 2, 2007
4:18 am
You may be interested in join their group. http://tech.groups.yahoo.com/group/Planewave_CDK20_Telescope/ Clear skies and calm winds, "Dollar" Bill Logan, ...
93988 Thad Floryan
thad_floryan Offline Send Email
Feb 2, 2007
6:07 am
... That wisdom seems to be carved in stone, but I don't believe it. I suspect that in the process of rotating the corrector it's ofttimes replaced...
93989 James T. Bronson
jamesbronson... Offline Send Email
Feb 2, 2007
11:48 am
... wrote: OK, the "mini announcement" thread got me thinking. I think many people have a sort anti barlow prejudice, probably because many of them are junk. ...
93990 deandddd Offline Send Email Feb 2, 2007
12:07 pm
John and All, I have a older Meade shorty Barlow that I can pair with my Meade 10 inch F/6.5 scope. I would also use it on a 9.25. So you are thinking that a...
93991 Rod Mollise
rmollise Offline Send Email
Feb 2, 2007
2:12 pm
HI: Who made it doesn't matter. Meade likely didn't make that barlow, anyway. There is no special compatibility between Meade scopes and the eyepieces/barlows...
93992 Rod Mollise
rmollise Offline Send Email
Feb 2, 2007
3:10 pm
Hi: I'm not sure that most amateurs will perceive the R as a radical enough advance to encourage Celestron to move on it. If it does, I'm sure it would be easy...
93993 BellSouth
hdelano1 Offline Send Email
Feb 2, 2007
3:13 pm
Is that the OTA from your beloved C8 Ultima? Scott Holland Lowell, NC ... From: sct-user@yahoogroups.com [mailto:sct-user@yahoogroups.com]On Behalf Of Rod...
93994 Allan
SCTUSER@... Send Email
Feb 2, 2007
4:05 pm
... If only my Celestron eyepieces worked as well as the Tele Vue eyepieces on my C 8, and C 11 lol..... But I am happy with my Celestron Ultima barlow 8-) -- ...
93995 lburg_56 Offline Send Email Feb 2, 2007
5:57 pm
I have a 6" SC and have been looking at focal reducers. Can someone tell me if there is any diffrence between the Celestron and Meade 6.3 reducers other than...
93996 Rod Mollise
rmollise Offline Send Email
Feb 2, 2007
6:26 pm
There should NOT be. Unfortunately, however, at least one batch of the Meade reducers was DEFECTIVE. I'd buy the Celestron at this time. Peace, Rod Mollise ...
93997 Tom Rauschenbach
novitious Offline Send Email
Feb 2, 2007
6:47 pm
... I've heard talk of that. Could you describe the defect ? ... -- Software design and implementation should be a joyous art, a kind of high-level play. If...
93998 Chris Peterson
cloudbait Offline Send Email
Feb 2, 2007
6:59 pm
I believe that one or two of the internal surfaces were uncoated (or badly coated), resulting in internal reflections. Chris ...
93999 Bill Logan
wb9sat Offline Send Email
Feb 2, 2007
7:28 pm
Rod, I am betting that new upstart companies will overtake C and M very soon. A glance at Sky and Telescope magazine reveals some great upcomers such as ...
94000 John Mahony
jmmahony Offline Send Email
Feb 2, 2007
7:35 pm
Barlows are a pretty simple optical component, so there's little in the way of "compatibilty" involved. -John ... ...
94001 John Mahony
jmmahony Offline Send Email
Feb 2, 2007
7:53 pm
I think Rod's referring to the recent problem with a batch of Meade reducers that had the wrong lenses installed. The resulting focal length was way too short...
94002 Chris Peterson
cloudbait Offline Send Email
Feb 2, 2007
8:01 pm
Yes, the coating issue I'm referring to was a long time ago- maybe 10 years. I hadn't heard about the more recent problem. Chris ...
Messages 93973 - 94002 of 119906   Oldest  |  < Older  |  Newer >  |  Newest
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