February Calendar by Dave Mitsky All times are UT (subtract 5 hours and when appropriate 1 calendar day for EST) 2/1 The Great Red Spot (GRS) transits...
I just purchased a slightly used galileo 80mm F5. After taking a peek thru the scope I noticed that it had a considerable amount of glare in all but the 25mm...
David, What kind of difference can blackening the edges of the lenses as you described make? And what about blacking the end of the metal focuser draw-tube? ...
Mike, Reducing internal reflections on any scope can make a difference but how much depends on how poorly the job has been done when the scope was built. My...
Hey guys, Looks like I messed up the coatings on my doublet while trying to clean off some grease on the lens. I would like to buy another doublet but would...
... Larry, In what way are the coatings "messed up"? Modern coatings are a lot more robust then most people give them credit for. Short of cleaning the lens...
It has oil blotches on it that I smeared using windex. I normally don't touch the lenses but as you can see in previous post spent some time flocking the...
... Larry, What you need is some aceton or (isopropyl)alcohol. If you use aceton, remove the lenses for cleaning or have the paint dissolved. There's plenty...
Thanks for the advice. I think aceton is the answer. I looked up some of its qualities on the net and it looks promising. Can this be purchased at a...
... You can buy Acetone at the local hardware store. If you look on the TeleVue web site you see it is what Al recommends for cleaning his eyepieces. Note...
... From: "Phil Lefever" Subject: Re: [80f5] need vendor for 80mm f5 lenses (snip) ... Yes, I saw some today ... but you may have to buy a gallon of it !!! ...
Richard Amirault
ramirault@...
Feb 11, 2005 6:01 pm
6741
It's commonly available in quarts as well. Try an auto paint supply store, and buy the more expensive of the two lines they stock - it's likely to be more...
All: I posted my thoughts on the "fit and finish" of Apogee's 90mm f/6.1 scope earlier (See below), and I was able to get out Friday night and finally do some...
... I have an 80f5 (from TaxiMarket, an eBay seller) and a Celestron 102f5 (somewhat similar to the 100mmf6) 80f5's work ok on reasonably sturdy camera...
... I gathered that from the comments that I've read. A lot of DSO's, particularly globulars, really benefit from going up to 140X or more. ... That might...
These are the eyepieces I used: 26mm Meade Super Plossl (which I mis-identified as 25 mm in my comments) 18mm "Tele-Optics" Kellner which came with the scope....
... Orion 100mm F6 has a tripod mounting block. At least it used to. (this is the optical tube assembly without diagonal or eyepieces_ ... The 100f6 would be...
I have the Celestron version of the 102 F5 with a tripod block mounted on an Oron AZ3. It is very light weight, much more so than an EQ2 or 3 and set up takes...
For what it's worth: I have two nice 4" refractors on EQ mounts. My Most used scope is my Orion ST80 on a photo tripod. I even bought a second one after my son...
Howdy! Just received my new Shortube 80, which I was "windowshopping" since the end of last year. Main purpose is land observation. I also got the Shorty 2x...
In a message dated 2/18/05 10:35:12 PM Central Standard Time, webnav2000@... writes: I tried moving the eyepiece, 45 degree correct image diagonal and...
... Does the scope obtain sharp focus using only the low magnification eyepiece? Always work your way up from low to high if you seem to have problems....
Hi Rossi, Just to reiterate what Rod and Phil have already stated, the 45* diagonals that are included as "free accessories" with scope packages as your ST80...
... My story parallel's Mary's except it was my wife who now owns my Orion ST-80/f5 and I bought a Stellarvue Nightharwk 80/f6 to replace it. The Orion with a...
Thanks much for the replies. I compared several days of observation and really noticed a considerable variation dending on atmospheric conditions. Some days...
... You might want to look for a sturdier tripod. I use an EQ-2 with my Celestron 102f5 which is just about "right" for this telescope. Try lurking Astromart....
... I have an EQ-2 that I use for both my ST-80 and Nighthawk. The EQ-2 is a little light for the Nighthawk but works very well for the lighter ST-80. I moved...
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