Author Topic: Which Telescope to get for Christmas  (Read 85 times)

Shawn Bush

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Re: Which Telescope to get for Christmas
« Reply #15 on: January 31, 2018, 12:43:48 AM »
Bummer.....

Rob Stevens

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Re: Which Telescope to get for Christmas
« Reply #16 on: January 31, 2018, 04:48:19 AM »
Quote
I will let others advise you on the scope and mount. What I can say from my readings is that visual astronomy is very much focused around the scope and the aperture. AP is very much focused around the mount.

Ed:

I think that is about the long and short of it.. For visual enjoyment of the night sky, the mount is not of utmost importance, it just needs to be able to support the scope in a reasonably stable way and if the tracking is motorized, then as long as it keeps the object reasonably well centered in the eyepiece, that's good enough. At AVX mount with an 8 inch SCT is a reasonable visual rig.

Astrophotography is quite a different animal.. The objects other than the planets and the moon are very dim so long exposures are necessary, not just a few seconds but minutes, 10 minutes or even more. What this means is the requirements for stability and tracking are greatly increased, rather than just keeping the object centered in the eyepiece, the mount needs to keep the object centered on the individual pixel, if the image shifts because of tracking errors or vibration, the image is smeared. This is part of what makes astrophotography so challenging.. The mount has to be precisely aligned and it must track very accurately. This is why people are willing to spend $6,000-$10,000 or even more for a mount..

This means the mount is critical. Furthermore, it means a light telescope with a short focal length is by far the best way to begin astrophotography.. A heavy scope is more challenging for the mount and a long focal length means that the image scale is larger and thus requires more precise tracking. Furthermore, a "fast focal ratio" is advantageous since it shortens the exposure time. This is why the standard beginners astrophotography rig these days is a mount like the AVX but with a small refractor, an 80mm apochromat is a good match. With a focal length of about 500mm-600mm, a focal ratio of F/6-F/7, weighing about 6-8 lbs, it's a good match for the AVX.  The 8 inch SCT has a F/10 focal ratio and a focal length of 2000mm, that makes getting decent photos difficult.

$1500 sounds like a lot of money and it is a lot of money. But the world of Astrophotography, is an expensive world and $1500 gets your foot in the door..

It is often said that observing the night skies visually, stargazing, and astrophotography are two separate hobbies, in many ways they are. When deciding on scope and mount, I think one has to decide whether the rig should lean towards stargazing or towards photography because one or the other will be significantly compromised.

Jon Isaacs

Steven Autio

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quiterhardpho

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Re: Which Telescope to get for Christmas
« Reply #18 on: January 31, 2018, 11:15:31 AM »
Will there be a telescope under the tree? What to do after you open the box.
http://www.cloudynig...s/#entry6953228

calbeyrefrows

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Re: Which Telescope to get for Christmas
« Reply #19 on: February 02, 2018, 08:51:38 PM »
I know it's getting late. But, if I were you, I'de do a little more research before buying anything.
I think the Orion 80ED and Sirius EQ mount might be a good starter set up. It's good for both AP and visual, and you'll just need a few accessories, T-ring, and 2" tube, to attach your camera. It's versatile, and you can add lots of things to it.

http://www.telescope.../19/p/24281.uts

Google Jerry Lodriguss, "Catching the Light". His website is full of helpful information. He also has several books on the subject including one for beginners on a budget. I believe he's also a member of this forum.

Happy Holidays

Jorge Herbert

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Re: Which Telescope to get for Christmas
« Reply #20 on: February 03, 2018, 05:54:01 AM »
my entry level rig is a new AVX mount with a used 8" SCT. i've had it about 6 months now.

i have no trouble with alignment and use what so ever and would recommend it as a quality starter set up.

the goto's are very accurate with the AVX.

fefeldarsro

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Re: Which Telescope to get for Christmas
« Reply #21 on: February 08, 2018, 08:36:51 PM »
The decision was not easy and everyone gave great advice, however, I opted to go with the Celestron 8" Advanced VX SCT. I looked at the other options but for some reason I kept coming back to this telescope. I will certainly look at the thread you made reference to aeajr for first nights observations!  And of course it will be raining for at least the next week......  typical..... So anyway, I am very excited to be a part of this community and look forward to learning a ton!

It is scheduled for delivery today actually.

Thank you all for your input. It was greatly appreciated!

Aaron Romano

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Re: Which Telescope to get for Christmas
« Reply #22 on: February 09, 2018, 09:06:46 AM »
Take a look at post 20 for things to look at and how to find them when you get the scope.