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Go Back   IceInSpace > Beginners Start Here > Beginners Talk

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  #41  
Old 17-12-2009, 08:09 PM
that_guy (Tony)
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Thanks Brian, great advice on the eyepiece and planet tracking. I hold off the eyepiece until I get more seriously into it..

thanks,
Tony
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  #42  
Old 23-03-2010, 06:17 PM
magado
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I have a 8inch dob.It has been good to usebut of late there is no way I can
focus it It has been collimated it has a Crayford focuser. hoping for some
help.It looks like it wont be long until it goes to the tip
Magado
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  #43  
Old 23-03-2010, 07:09 PM
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AG Hybrid (Adrian)
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A very good essay. Ive been looking for a comprehensive guide like this to the basic pro's and cons of each telescope design in one article, comparing them to each other.

Nice one
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  #44  
Old 23-03-2010, 10:26 PM
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Miaplacidus (Brian)
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Quote:
Originally Posted by magado View Post
I have a 8inch dob.It has been good to usebut of late there is no way I can
focus it It has been collimated it has a Crayford focuser. hoping for some
help.It looks like it wont be long until it goes to the tip
Magado
I'm sorry to hear you're having difficulties with focusing. Hard to determine over the internet what might be wrong. Is there a club nearby that maybe you could take it to?

Otherwise, perhaps you could provide more details. What eyepieces are you using? How is the image distorted? (Perhaps using it during the day on some distant object on the horizon might provide some clues.)

Quote:
Originally Posted by AG Hybrid View Post
A very good essay. Ive been looking for a comprehensive guide like this to the basic pro's and cons of each telescope design in one article, comparing them to each other.

Nice one

Ta, Adrian.
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  #45  
Old 26-05-2010, 03:27 PM
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yusufcam (Colin)
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excellent article, cleverly written

i remember my first scope from not that long ago, i knew little about it when i purchased it but took the apparent honest advice of the salesperson (who in hindsight sold me exactly what i had unknowingly asked for).

After i bought it and returned home, i did some enthusiastic research on the web and was immediately dismayed to find a plethora of experts pleading grimly "whatever you do make sure someone doesn't sell you one of these things".

"Sheooot, i thought", what have i gotten into.

after several months of encountering such reports i succumbed and ended up getting the recommended beginner scope (the ubiquitious 8" dob, and further down the track, a 102mm F10 refractor). The moment i first used the dob i knew what the advantages of the original telescope, a short tube refractor, where (and coincidentally at the same time found the first astronomy book which sang the virtues of ST refractors, [Phillips Deep Sky])........

Even though i knew i prefer to buy food from a restuarant and take it home to eat. It didn't dawn on me that i would defer to a scope used in our backyard rather than a trek to a remote dark site, light pollution regardless.

Yes, Astronomy is conceptual, (yet, some objects are still beautiful) and that conceptualization extends to our telescopes....

One night (when i had only the ST) i noticed how forlorn i felt when i thought about the "blinding CA and puny magnification" of my ST achro. Then i stopped momentarily and thought what happens if i think about it as being like a set of powerful binoculars (wide field, light, portable), and instantly to my suprise felt absolutely great about them....


I have found that i love the hunt and my urban setting.

Once i've found where things are and are quite familiar with their locations i drag out the dob or F10 (on the balcony) and apply the magnification.

My scopes work as a team of sorts.....

So in the end it took all that time to find out it was right from the beginning (in this case).

Enjoy, why not...

Regards
Col


to look at what each scope does best.

Last edited by yusufcam; 27-05-2010 at 11:29 AM.
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  #46  
Old 13-04-2013, 04:27 PM
barry2718 (Barry)
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Great Advice

Excellent advice in the posts here on equipment and pointing the Dob. I had encountered the Dob hole near Zenith and never thought to prop the scopes base on an angle. I have had a similar problem with my Eq mount 4" saxon and had to change to alt az tracking manual tracking near the South celestial pole, so it not just my lack of experience but real problem a design limitation of any scope. Great Articles wish I had found these sooner.
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  #47  
Old 11-02-2015, 01:05 PM
chucho (Jesus)
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Good article

I am new in the use of a telescope, even though I have been reading about astronomy since long ago but nothing like get the real experience in your balcony.

Well I just need it to said thanks even if this was an old article this looks like a good push in the right direction.
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