Good evening all,I was wondering what my fellow astronomers think about Ultrascopic Eyepieces from Orion. Has anyone ever had the chance to use any of them and...
John: Your right on the button, when I first bought a 27mm Panoptic ( 2" ep), I could not fully seat it into the foucuser and get it to focus correctly in my...
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telescopes@yahoogroup...
Apr 1, 2008 7:52 am
132317
It didn't work at all for our mosquitoes here. IIRC, when tested against DEET it repelled the buggers for about 1/10 the time of 12.5% DEET (Consumers Union)....
The last time Consumer Reports rated spray and lotion repellents they liked the repellents that used Picardin. Although, Picardin is not as effective as DEET...
Good morning to all, I was obserning the other night (yeah!) with a bunch of friends and the conditions were not bad (good transparency and no clouds!!) but it...
... about ... use ... A few years back, I picked up a used 15 mm Ultrascopic which became the eyepiece I used the most. Currently I have 30, 20, 15, 10, 7.5, ...
Normand, had she already tried a VERY slight tightening of the azimuth bolt at the bottom of the mount ? Just a 1/4 turn (or even less) of the nut on the...
When I got my 12" Lightbridge I suffered a similar problem and it was due to loosening of the azimuth bolt - I solved it with a dab of thread locker glue - the...
... I believe the Lightbridge, like other Dobs made by Guan Sheng, has roller bearings in the azimuth axis. The solution is to remove the roller bearing...
Yes Geoff, you're right. it has roller bearings. Some people like it because it is so easy to move. But I don't. Even if there is no wind, you have to be very...
... These are excellent eyepieces, in the same class as Tele Vue's Plössls and U.O.'s orthoscopics. They have been sold under many brand names, most recently...
The Lighbridge has a tension knob for the azimuth axis, so unless you have it wat loose, there is no need for too easy motion. And it works very well on mine. ...
... Do you have a particular scope you could recommend? ... According to waht I have read, in Phil Harrington's books, is that if you want the best absolute...
Now with winter coming on douwnunder, my bino's are starting to fog up especially the eyepiece end when looking to the zenith. Do people use dew heaters on...
Used it in the marsh, and down on the coast, worked fine. Doug ... From: Paul Gustafson <laservet@...> To: telescopes@yahoogroups.com Sent: Tuesday, April...
I had no idea that Televue had blemished eyepieces to begin with. In the long term, I wonder if their prices will drop with the large field Chinese eyepieces...
Hi Doug, I'm going to mention it to my friend. I didn't know about this tension ajustment. Maybe my friend did not read the instructions! I know that she did...
Hi to all, last year using our binoculars on those rare perfect nights we were able to see the dust lanes around the Triffid, lagoon, Eagle and M24. On one...
So I have seen, courtesy of The Weather Channel. Good luck to your friend, and please ignore my typos on the first post. Don't know how I did that bad! Doug ...
In a pinch those hot hands dry chemical hand warmers taped or rubber banded around the outside of the objectives work well. Not pretty and only good for the...
Reading the posts about mosquitoes got me to thinkin' - I store my N8i OTA in a plastic sack, surrounded by a 1/4 inch sleeping pad, inside a duffle bag with...
Barb, I'm in complete agreement with you on the "hod hands" chemical warmers! I've used them on refractors, finders AND binoculars, and they simply WORK!...
Two questions (long post warning): 1) I have a 30mm GSO Superview I use in my XT-10. I notice that the outer 1/3rd of the field of view has stars which...
If you have astigmatism, low-power eyepieces will show it. I have to wear glasses when I use any eyepiece above about 10mm, although it isn't much of a...
... This is more likely coma, though there may be some astigmatism (or more likely lateral spherical aberration) in the eyepiece mixed in with it. The 30mm has...
... more ... it. ... the ... also ... telescope's ... I thought coma was when a star would look comet shaped and be pointed away/toward the center of the field...
... That may be field curvature, another aberration of fast Newtonians, but, like coma, it is worse the farther you move off axis. Geoff -- Geoff Gaherty ...
