tell us more.. gototeleguy <jernecma@...> wrote:If you want to improve you 80f5 scope both in looks and operation go to focusknobs.com and get some focus...
I'll agree and disagree with this... The knobs look to be very well constructed but knobs alone do not a focuser make <G> (Note: I'm considering ordering from...
My scope is a Celestron WA 80m F/5 just bought. It came with 1 1/2" plastic knobs which were very rough on the hands. The knobs from focusknobs.com are the...
Hi Jerald, Was the weight of the knobs an issue for you? I was thinking of getting some, but I was concerned about the weight at the rear of the OTA. I find...
Hi all This morning (5:12 U.T.) i capture some shots of Mars from my very poluted city of Santiago de Chile. The transparency was awful, but the seeing was...
... The optics of the 114GT are a mixed bag. I have heard a few comment favorably on them. The biggest hitch is that this scope uses a negative lens at the...
"cometavictor" ... Good photo Victor. You captured more detail than I have through four cycles of Mars. So far this year all I have seen or imaged is the white...
... High humidity is a problem here in western Michigan. I had a pretty good view of Mars at 56x (Orion Observer 70), but 117x was virtually worthless, showing...
Greetings... I'm on vacation this week and though I'm local, I won't be around the computer much. If you know of anyone who is subscribing to the list, let...
Guys (and gals), Just a quick question, is the jump from a 15x70 to a 20x80 significant in terms of DSO visibility (examples???)? I am considering if it is...
Sorry Guys, right post wrong place (this was supposed to go to the Binocular Astronomy group). Anyway while I am at it I have a question, how good is the 80ST...
In a message dated 8/14/03 7:48:07 PM Central Daylight Time, ... Hi: The 80 is limited by its aperture when it comes to globs, but does OK. M13: From a...
Darren, I notice a big difference between my 12x60 and my 25x100's, but doubt that a jump from 15 to 20x would be quite that dramatic. The extra 10mm of...
Hello, I have a newbie question, i'm wondering whether the size of the Moon or Mars is the same when viewed with a 400mm slr lens or a 400mm F5 telescope ? I...
A 400mm SLR lens gives you a magnification of 20, because a "normal" lens is 50mm. With a ST80 you can use differerent eyepieces to get more (or even less)...
Richard Amirault
ramirault@...
Aug 16, 2003 3:51 am
5506
Hi, ... Moon ... The short answer is no. The focal length of the lens is one thing, but it combines with the focal length of an eyepiece to provide the final...
Well, I got around to checking collimation on my Celestron ST80. I put my laser in the focuser without the diagonal and the spot is centered in the objective....
... Those who have responded assume, perhaps correctly, that you mean looking through an SLR with a 400mm lens vs looking through a 400mm telescope with an...
... It sounds like you need to shim the mirror in the diagonal a bit if you want to get it back to square. It is a trial and error affair using thin pieces of...
Phil, I looked inside and it has some sort of RTV holding the mirror in place. Does it matter that it's that far off with the disagonal? I have no clue. ...
Ed, I bought the 80mm as a finder on my dob. The 90 was just too heavy to get a good balance. I would love to have the 120mm f/8 as a finder ;) Clear skies, ...
That link does not work (nor should it). How about telling us what the differences are? Richard Amirault N1JDU...
Richard Amirault
ramirault@...
Aug 17, 2003 4:05 am
5516
... Are you referring to both scopes being Orion branded models? If so the 80mm is a Synta made optical tube and the 90mm is made by Guan Sheng optics in...
... It probably doesn't make a huge difference but you aren't looking down the optical axis of the scope when you center an object! Do a good star test...
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