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Messages 56263 - 56292 of 139558   Oldest  |  < Older  |  Newer >  |  Newest
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56263 Norman Higgs
nfhiggs Offline Send Email
May 1, 2002
7:58 am
Just out of curiosity - who do you work for? Or is that classified? LOL ... From: "hwnewton" <hal.newton@...> To: <telescopes@yahoogroups.com> Sent:...
56264 telescopes@yahoogroup... Send Email May 1, 2002
10:33 am
TT Policy Statement (Revised April 18, 2002) As a reminder of this group's desire to encourage all of its members to participate in a friendly and informed...
56265 Drazen Kupec
dkupec2001 Offline Send Email
May 1, 2002
11:02 am
They both are probably very similar in performance, and nevertheless I would recommend Tele Vue, because of their famous customer support, quality control and...
56266 Drazen Kupec
dkupec2001 Offline Send Email
May 1, 2002
11:02 am
Well, it may seem a little difference at first when going from good average eyepieces to high quality ones. But with some experience you'll definetly find that...
56267 Drazen Kupec
dkupec2001 Offline Send Email
May 1, 2002
11:02 am
Well, I don't have so much experience like many of members in this group, but I have and still use all three types of scopes. Because of my lifestyle and...
56268 mj1_systems Offline Send Email May 1, 2002
12:06 pm
Hi, Does anyone use the ScopeCoat by Astro Systems to provide temporary protection of their scopes when left setup outdoors? I need something to cover my...
56269 philip_harrington
philip_harri... Offline Send Email
May 1, 2002
12:50 pm
I'll start by saying that I have no first-hand experience, but from what I have *heard*, the ScopeCoat units are fine. I don't imagine they'd be as good as...
56270 Joseph O'Neil
joneil1000 Offline Send Email
May 1, 2002
12:58 pm
... The model you have is Japanese made, by Vixen I think, and is very different quality than the new Chinese made 80mm, F5 models which top off at around 100X...
56271 m42tech Offline Send Email May 1, 2002
1:19 pm
Thanks, Phil. It was the protection from the heat that I mostly wondered about with the ScopeCoat. I imagine the white ScopeCoat should reflect more light &...
56272 erikdlin Offline Send Email May 1, 2002
2:40 pm
... my ... the ... This ... The model you have is Japanese made, by Vixen I think, and is very ... top off ... years ... time, I ... (even ... a finder. ... ...
56273 Jason Blaschka
theastropage Offline Send Email
May 1, 2002
2:44 pm
I use the Astrosystems scope coat for my refractor and it works fine. It doesn't heat up at all. I mostly use it at Star Parties and long strings of clear...
56274 philip_harrington
philip_harri... Offline Send Email
May 1, 2002
3:02 pm
From what Jason just added, I would say "yes." I've never seen a white tarp, but someone may make one. Phil ... Phil Harrington http://www.philharrington.net...
56275 rbarbourbis Offline Send Email May 1, 2002
3:10 pm
I don't know about Scopecoat. But, if you want to increase thermal reflection cheaply, go to Walmarts or other place and buy several "emergency blankets"....
56276 philip_harrington
philip_harri... Offline Send Email
May 1, 2002
3:11 pm
Please pardon my self-indulgence for a moment, if you would. I've spent the last several weeks looking over and updating my web site ...
56277 Buck Harley
buck_harley Offline Send Email
May 1, 2002
4:10 pm
Jeff I was not being confrontational either I am to old for that.. I was explaining that I have very good luck with there Optic`s but had a lot of other...
56278 ggottait Offline Send Email May 1, 2002
4:11 pm
No more than 120X for Marx and about 100-120X for Jupiter and Saturn. For Sun views with Thousand Oaks t2 filter no more than 60X....
56279 Steve Bradley
stevencbradley Offline Send Email
May 1, 2002
4:27 pm
Phil, a HUGE thanks for the review in Astronomy mag. I just got my copy yesterday, and so I read the review ASAP. It made me reconsider my decision NOT to buy...
56280 Geoff Gaherty
gahertyg Offline Send Email
May 1, 2002
4:42 pm
... That's one of the plusses of books like Star Ware, NightWatch, and the Backyard Astronomer's Guide: lots of pictures of people and telescopes together. I ...
56281 hwnewton Offline Send Email May 1, 2002
5:08 pm
Somewhere I read that all barlow's are variable power. To adjust the power you simply slide the barlow into or out of the focuser... Any truth to this? If so,...
56282 philip_harrington
philip_harri... Offline Send Email
May 1, 2002
5:15 pm
... Steve, Thanks, glad you liked the review. Unfortunately, I only write the words, I don't take the photos, so have no control over that. Still, your point...
56283 Stephen Tonkin
sftonkin Offline Send Email
May 1, 2002
5:38 pm
... Yes. see the Barlow tutorial on my web site. -- Best, Stephen <http://www.astunit.com>...
56284 Geoff Gaherty
gahertyg Offline Send Email
May 1, 2002
5:38 pm
... Yes. How variable depends on many factors, such as the eyepiece design and how much freedom you have to position the Barlow in the optical path. For...
56285 Al Misiuk
sloanpk2000 Offline Send Email
May 1, 2002
6:12 pm
Hi, The greater the distance between the eyepiece and the barlow, the greater the resultant magnification. Place an extension to your barlow and then then the...
56286 philip_harrington
philip_harri... Offline Send Email
May 1, 2002
6:25 pm
Hal, That's also why a 2x Barlow will produce a magnifying factor of about 3x when it is inserted between the focuser and star diagonal in a refractor and...
56287 art_schneiderman
art_schneide... Offline Send Email
May 1, 2002
7:24 pm
The magnification of a Barlow is given by the approximate formula: M = 1 + (L'/f) where L' is the distance from the Barlow to the eyepiece's entrance pupil and...
56288 chris_in_mass Offline Send Email May 1, 2002
7:37 pm
I'm looking at the Meade SWA 24.5 and the question just occurred to me: why don't manufacturers design the low-power eyepiece in their line to provide the...
56289 Buck Harley
buck_harley Offline Send Email
May 1, 2002
8:38 pm
I have posted 2 images of My 16X18' roll of roof Observatory with the pier in the up pos. in the folder Buck`s Pier... I have a warm Computer room and ...
56290 Al Hall
alhall Offline Send Email
May 1, 2002
10:59 pm
Hi Phil, I remember corresponding with you about the ScopeCoat a couple of years back when I saw one pictured in your article for Astronomy's "Explore the...
56291 ksbtk@...
starmaster08083 Offline Send Email
May 1, 2002
11:21 pm
Looks great Phil - can't wait for the book and the movie <g>. Clear skies, Kevin Dixon ksbtk@... From: "philip_harrington" <phil@...>...
56292 starsplitter_ne Offline Send Email May 2, 2002
12:28 am
... ...snip... Point taken. Wouldn't you have to know how big the "someone" is to determine a relative size? Maybe something more measurable would be in order....
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