Greetings Ed, I am planing to push big 25X100's. The extreme wide field of view on 6X - 10X is OK, and it helps to locate things. I plan to get closer to...
... I was considering the Apogee 15x70 with the neb filters, but decided on the Celestron skymaster because I thought they would be better quality. Are the...
I've been documenting the construction of my own observatory for my 18-inch reflector, which you might want to visit at http://www.philharrington.net/swo....
Winnie, I have had my scopes in an observatory for about 14 years now and have not seen any ill effects and my observatory sounds similar to yours. There are ...
... And, of course, once again Yahoo doesn't set up the link correctly by incorporating the period into the URL. The correct address for my observatory is...
I kinda had a feeling a 4" f6 achro wouldn't fit the bill, if he is allready keen to false color vs no false color. I read the continuing thread after, and I...
Wouldn't the wider exit pupil (assuming the exit pupil refers to the "far side" of the unit from the viewer) provide a wider field of view in conjunction with...
Harry, don't let the star test rule your life, or ruin your fun! Remember, the test of a scope's optics is better determined how it handles things like low...
... The exit pupil has nothing to do with the field of view. It is the image of the scope's objective formed on the outside of the eyepiece, i.e. on the "near...
TT Policy Statement (Revised September 14, 2004) As a reminder of this group's desire to encourage all of its members to participate in a friendly and informed...
telescopes@yahoogroup...
Dec 1, 2004 2:52 pm
107114
From: "Harry Lewin" <hml48@...> ... I was a bit flummoxed when first reading your post, then I realized the 560mm figure had to be referring to the...
I have a 14.5" Portaball with an equatorial platform for tracking. I am 5'5", and can basically stand flat footed and view, except right at the zenith, which...
... The two criteria for an artificial star is that it not be resolvable with the telescope and it be far enough away that it can reasonably be considered at...
... ? Do you take the OTA off the mount after ... If your observatory keeps the rain off your telescope and the bats from nesting in it, then that is all the...
Phil, ... powder, but they loved the stuff. Had to resort to poison this past weekend, which is very much against my grain, but I'm hoping it resolves the...
... wrote: Jack, My William Optics Megrez scopes are 80mm in diameter. (There seem to be models with other aperatures but they either very new or not as ...
Hi All, I wish to run a Kendrick standard dew controller off of AC. Does anyone know of a good source for a 120v/12v converter? Kendrick has a 4.5 amp one for...
... It works fine if you have enough in-focus travel. I could not make it work on any of my scopes, so I suspect it is more designed for the SCT crowd. Hugh...
... Roy Bishop has developed a number which shows ... by multiplying ... for these three ... twice as ... That may be just slightly overstating the case....
... Adler's ... No luck following your route to the link, but IIRC, I have the article in a stack of S&T's in the basement. Can you recall the issue that...
Grant, ... The lights on the George Washington Bridge are incadescent with green glass coating. I assume a significant of white light gets out. (They were not...
It's stated that it doesn't work well w/ Refractors and Newtonians due to focusing issues, but it works very well on my Wm.-Yang SD 4" Refractor. Steve S....
Hi Gary I posted an image in the files section (small baader saturn)which is fairly representative of the views I would normally get (visually) of Saturn. I...
Phill and all I have been wondering what 8" reflector you used for the Eyepiece Impressions in your book Star Watch. I am thinking of upgrading from my 6EQ,...
Hi Group, I like Phil's StarWatch Observatory very much. I plan to build something similar on my property about 45 mile west of Gainesville, FL. It will be...
I have just recently herd of this modular barlow system and am considering purchasing one. Has anyone had any experience with this system? It can be seen at...
Hi Harry, Maybe you can clarify something. You have the 80mm semi-APO, the 80mm ED-APO (which I think is a new product costing around $800 US), and I know they...
Hi Mark, OK, I looked at the image you posted and I have a question. How accurate is that to what you see in the EP really? I mean: 1) do you see that blue...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
