With a Zeiss Telementor (optically excellent but only 63mm) I've seen the Cassini division during most sessions (fleetingly when the atmosphere settled during...
34501
telescopes@yahoogroup...
Mar 1, 2001 10:46 am
TT Policy Statement As a reminder of this group's desire to encourage all of its members to participate in a friendly and informed manner, please review our...
34502
Geoff Gaherty
ggaherty@...
Mar 1, 2001 11:24 am
... In order to work, they would still have to be between the eyepiece eye lens and your eye. The only eyepieces I know of that have threads on the eye lens...
34503
Geoff Gaherty
ggaherty@...
Mar 1, 2001 11:42 am
... Mounts like this one and the University Optics one somebody else suggested are _not_ a good idea. I call these Neandertal mounts. The reason I bought a...
34504
djm28@...
Mar 1, 2001 11:51 am
... snip Perhaps something similar could be arranged for a prescription lens, though my eyepieces have a variety of diameters, so one size wouldn't fit all....
34505
djm28@...
Mar 1, 2001 12:44 pm
... snip ... scopes? ... It's hard to beat one of the Synta 80mm f/5 clones for extreme portability. I've used my Orion ShortTube 80 far more than I ever ...
34506
Joseph O'Neil
joneil@...
Mar 1, 2001 1:04 pm
... -snip- In theory, I do nto see why not. I know for a fact you can without an astigmatism - as you can buy diopter correctors at a well stocked photo store...
34507
nicholl.cj@...
Mar 1, 2001 1:27 pm
Thank you all for the responses. Pretty clear that this is not recommended. Since I'm not particularly handy, it would need to be something "out-of-the-box"...
34508
mcmaps@...
Mar 1, 2001 1:37 pm
Eric, I use Bifocals and the reading part is only the bottom 20% or so of the glasses, so if you have your eyes looking straight out, you will not be using the...
34509
Geoff Gaherty
ggaherty@...
Mar 1, 2001 1:53 pm
... I don't think that this is a major problem with current mass market Dobs. However, John Dobson's original design had the mirror resting on a board with...
34510
Joseph O'Neil
joneil@...
Mar 1, 2001 2:13 pm
... When a mirror is on a dob mount, it has only two range of motions - back / forth, and left / right. No matter wher eyou are pointing in the sky, the...
34511
bemusabord@...
Mar 1, 2001 2:38 pm
There is now a 120mm f=5 available from Skywatcher (and I assume from Gary Hand). Still pretty portable, should provide great deep sky performance, has a 2"...
34512
Huwehouse@...
Mar 1, 2001 2:54 pm
... from Gary ... performance, has ... pretty well ... I believe the same scope is available from Celestron as the C102 AZ. Telescopes for Less lists this...
34513
Chuck Taylor
chucktaylor3@...
Mar 1, 2001 3:04 pm
<<<These mounts look and _are_ massive, but are so badly designed that they shake almost as much as a Tasco equatorial>>> I respectfully beg to differ. I've...
34514
Frederic Lamorce
frederic@...
Mar 1, 2001 3:09 pm
... I'm interested, does "astronomy eyeglasses" exist really? I have a little myopia only. Frédéric. PS: Geoff I discovered your webpage at...
34515
andy.heath@...
Mar 1, 2001 3:35 pm
Hi Mark, I have seen the Enke division on Saturn with my Vixen GP102, it was a very exceptional night though, of which we don't have too many as you know. ...
34516
chv69@...
Mar 1, 2001 3:42 pm
In a message dated 3/1/2001 10:36:07 AM Eastern Standard Time, andy.heath@... writes: << Hi Mark, I have seen the Enke division on Saturn with my Vixen...
34517
andy.heath@...
Mar 1, 2001 3:45 pm
Actually, thinking about it, you may be right there. A good person to ask on this group would be Vic Palmieri. Hey Vic, are you listening in here at all buddy?...
34518
Wim Stemgée
wim.stemgee@...
Mar 1, 2001 4:53 pm
Frank, Het was dit dat ik me herinerde ... ivm de UHC... In het Februari-nummer, dat ander proefnummer dat naar iemand anders gegaan is, pagina 130 staat iets...
34519
hijano@...
Mar 1, 2001 4:57 pm
... protection, ... Eric, I'm plagued by the same problem. 1. I tried plastic lenses but reverted back to good old glass. Maybe I'm less careful than most or...
34520
egroups@...
Mar 1, 2001 5:03 pm
Sometime in May, I'm going to start construction on an 8" Truss tube dob. It's going to have a square mirror box with two poles holding the focuser/spider...
34521
nicholl.cj@...
Mar 1, 2001 5:08 pm
I'm shopping for a high-power EP, so obviously the issue of ER has come into play. As I've been observing, I've never really been bothered by short ER....
34522
andy_vollmer@...
Mar 1, 2001 5:12 pm
SNIP So it's a whole different ball game, the engineering involved in the little details. That's what all life is reallya bout, attention to the detials, as...
34523
Chris
rogersc@...
Mar 1, 2001 5:29 pm
I currently have a Celeston Super C8 Plus in the standard fork mount configuration... I would like to switch to a GEM but am not sure what would be the best...
34524
Jeff O'Dair
jodair2@...
Mar 1, 2001 5:36 pm
I can't comment first hand on the Orion Shortube 80 but I've read very good reviews about it and the 90mm. People seem to really like them. ... Reflector ... ...
34525
ratboy99@...
Mar 1, 2001 5:42 pm
In a message dated 2/28/01 10:03:11 PM Mountain Standard Time, ... That's the thing. Those are great suggestions, Chris, and they don't take a lot of time and...
34526
Ron Wodaski
ronw@...
Mar 1, 2001 5:46 pm
If you want to image, the GP-DX and CI-700 are the two mounts in your list that are most likely to make you happy. The C8 at 2000mm is very long; if you want...
34527
Geoff Gaherty
ggaherty@...
Mar 1, 2001 5:53 pm
... Unfortunately the first shipment of these is still somewhere in the middle of the Pacific Ocean. Geoff Gaherty Toronto Centre RASC...
34528
Geoff Gaherty
ggaherty@...
Mar 1, 2001 5:55 pm
... You're confusing the 102mm f/5, which has been availble for about a year, with the larger 120mm f/5, which is still on the slow boat from China. Geoff...
34529
Chris
rogersc@...
Mar 1, 2001 5:59 pm
Great stuff Rod, exactly what I was looking for... BTW, how does the older Vixen SP that was marketed by Celestron compare to the more current models? Thanks...
