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Messages 1109 - 1138 of 1381   Oldest  |  < Older  |  Newer >  |  Newest
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1109
Greetings All: Our free special technical report entitled, "10 Critical Elements of Dobsonian Telescope Drive Systems" is now available. If you would like to...
astrocoe
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Jun 3, 2008
10:17 pm
1110
Hello Group : I'm a new member and I have a bunch of questions about my 8" f6 Newt Telescope. I wanted to attach a picture of the focuser I use, or do I have...
Oscar Sifuentes
osifuentes2003
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Jun 5, 2008
1:50 pm
1111
Check out Jim's Mobile for reasonably-priced replacement focusers. See http://tinyurl.com/42to8y (http://www.jimsmobile.com/buy_rcf.htm) for example....
Boyer, William
wslboyer
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Jun 5, 2008
2:17 pm
1112
Free Special Technical Report Now Available Posted by: "astrocoe" astrocoe@... astrocoe Date: Tue Jun 3, 2008 3:17 pm ((PDT)) Greetings All: Our free...
Wayne G
missyy9
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Jun 6, 2008
2:54 pm
1113
Hello Wayne: Yep... there was an error in the hyperlink so we reposted the link to the report.  Here's the corrected link. ...
Steve Fuhr
astrocoe
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Jun 7, 2008
2:13 pm
1114
I noticed in the home page of the Newt. group, there is an excellent picture of a 10 or 12 " Newt. Or those Tube rings on the Newt. and where can I get some...
Oscar Sifuentes
osifuentes2003
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Jun 8, 2008
7:36 pm
1115
Those are older rings that I believe are no longer made. As for something that is similar, maybe Parks Optical. "My advice is always free and worth every...
Christopher Erickson
data_plumber1
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Jun 9, 2008
3:08 pm
1116
FYI -Chris...
Christopher Erickson
strevinwade
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Jul 4, 2008
1:27 am
1117
FYI -Chris...
Christopher Erickson
data_plumber1
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Jul 4, 2008
3:24 am
1118
I just picked up a older Mid 80's Meade DS-10A with a couple Super Plossie Lenses for $300. I have never used a Eq mount scope before. Is there any Videos on...
hodarthestrange
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Jul 6, 2008
6:01 pm
1119
There probably are videos. I've got a site that gives some information on EQ mounts that might help. http://www.larrydsmith.com/astro/mounts.html Post any...
Larry
DocCPU
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Jul 6, 2008
6:12 pm
1120
Purchase and learn to use a planisphere. Go to Astronomics.com type in planisphere in the Quick Search window. Choose a 10.5" planisphere that is closest to...
james_siska
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Jul 7, 2008
5:59 am
1121
... Donny, Another good investment might be a copy of "Turn Left at Orion: A Hundred Night Sky Objects to See in a Small Telescope--and How to Find Them" by...
Randall Hayden
randalljhayden
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Jul 7, 2008
8:30 am
1122
Thanks for the input guys. I looked for the Firefly Deluxe and was told it is out of print by Borders. I contacted the Spokane Astronomical Society and will...
hodarthestrange
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Jul 7, 2008
6:50 pm
1123
... I don't have a DS-10, but I reviewed the online instruction manual after reading your first post. As with any reflector taking pictures is possible. You...
Randall Hayden
randalljhayden
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Jul 7, 2008
8:00 pm
1124
Randall, Mine has a Drive on 1 axis. I also already have a T adapter for my digital camera from another cheap goto scope that I had and could never use. I meet...
hodarthestrange
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Jul 8, 2008
2:40 am
1125
An important message about the data-plumber.com (24.237.160.4) file archives. Some big changes are coming to the www.data-plumber.com file archives, which have...
Christopher Erickson
data_plumber1
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Jul 10, 2008
8:40 am
1126
Hello All: Looking forward to this forum. I have had many scopes, currently I have a 12.5 DOB and a 6" S/N on a GEM. Can anyone on the forum point me to some...
Ed Wiley
ewiley4
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Jul 26, 2008
4:02 pm
1127
Welcome aboard. I don't know what kind of astrophotography you're speaking of. If it's lunar or planetary, you might consider modifying a webcam as show here: ...
Larry
DocCPU
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Jul 26, 2008
4:17 pm
1128
I asked a question about radial balance and have come up with what seems to be the solution: an article in Sky and Telescope by Robert Cox (S&T November 1958)....
Ed Wiley
ewiley4
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Jul 27, 2008
10:44 pm
1129
Sounds like a good idea. Be sure to share the pictures that you get. ... From: Ed Wiley <edwiley@...> Subject: [NewtonianReflector] Radial Balance...
Larry
DocCPU
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Jul 27, 2008
11:47 pm
1130
Will do. BTW, the amount of weight depends on the distance from the optical center. I calculated it at 90mm OTA , but if you move the weight to 180mm the...
Ed Wiley
ewiley4
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Jul 28, 2008
5:29 pm
1131
Rather than lead (pretty expensive, not to mention the toxicity when machining it), try iron or steel (69% as dense as lead). Free weights are available in...
Boyer, William
wslboyer
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Jul 28, 2008
6:04 pm
1132
Use brass! It is heavier than steel and doesn't rust. Lead is toxic and doesn't machine well. "My advice is always free and worth every penny!" -Christopher...
Christopher Erickson
data_plumber1
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Jul 29, 2008
3:03 am
1133
Thanks Larry: I am using a DSLR, but even when not hanging a camera, the calculations I make (see Radial Balance Redux, just posted)suggest that I should about...
Ed Wiley
ewiley4
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Jul 30, 2008
8:17 pm
1134
Hi Ed. I've used several solutions for radial counter-weighting of smaller GEM/rotating ring mounted Newts, but perhaps the simplest was adding a short...
garyparkerson
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Aug 2, 2008
6:51 pm
1135
Hi all. Just wanted to introduce myself. My name is Gary and I'm a Newtonian fanatic - the more old school, the better! I get to play with a lot of...
garyparkerson
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Aug 2, 2008
7:00 pm
1136
I haven't tried it, but one neat idea I saw once was to glue a strip of velcro along the side of the tube to be weighted. Then attach a mating piece of velcro...
Larry
DocCPU
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Aug 2, 2008
9:09 pm
1137
I like Newts myself. The are so simple in construction, one can make one by hand, or easily make modifications to the instrument. ... From: garyparkerson...
Larry
DocCPU
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Aug 2, 2008
9:11 pm
1138
Gary- properly made Newts can eat anything else. At this moment I have a C5, C8, C14, FS 102, 6" f/8 acromat. Newts are 6" f8. 10" f 4.5, 10"f6, 16" f4.5 and...
drgenovese@...
genovesecharles
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Aug 2, 2008
10:49 pm
Messages 1109 - 1138 of 1381   Oldest  |  < Older  |  Newer >  |  Newest
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