Up grading my Orion 120ST

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  • Member since
    October, 2007
Up grading my Orion 120ST
Posted by zachsdad on Tuesday, February 25, 2014 12:34 PM

My 120mm Orion short tube refractor has long been my 'grab-n-go' scope. It sits on my screened porch patiently waiting for me to haul it out for some nice, rich-field views. The scope came with the EQ1 mount, and I long ago suplimented the sloppy stock focuser with an Orion battery operated focusing system. Well, time and weather being what they are, the electric focuser stopped working this past summer, and I've long disliked the EQ mount; prefering the casual ease of an alt-az. So, this winter and spring I've replaced the stock focuser with a dual speed Crayford focuser, and just last night ordered an Orion Versago alt-az mount. I also added a new red-dot finder (Orion EZ-finder II). The unit will be much lighter than with the EQ mount, making it even easier to grab for a few minutes of observing pleasure.

Terry's Law of Cosmology: "Light travels faster than sound. That's why some people appear bright until you hear them speak."

18" Obsession Classic dob #1665

10" Orion Skyquest Classic dob

 120mm Orion ST achromat

15 X 70 celestron Skymaster binoculars

  • Member since
    October, 2005
Posted by leo731 on Tuesday, February 25, 2014 2:32 PM

Superb!

I hope the arctic chill will loosen up soon so you can actually try the newly mounted and equipped scope outside.

L

A nebula in the eyepiece is worth two in the Atlas.

  • Member since
    March, 2008
Posted by Antitax on Tuesday, February 25, 2014 10:48 PM

   Do you ever stop it down, and what is the result?

TS 8x40 Wildlife, 10x50 Marine/Fujinon 16x70/TS 80mm triplet, 6x30 finder, EQ-3 mount, TS 2" 99% diagonal/Celestron C5+ and 6x30 finder, DIY tripod/5" Bahtinov/12" GSO dob, 8x50 finder/Meade 2" 24mm 82°/Hyperion 24,13,10mm 68°/TS Expanse 17mm 70°/SW 7mm Panorama 82°/Ultima 2x barlow/Astronomik UHC-E filter/Baader O-III/Astro Solar 5" & 80mm filters/Sky Atlas 2000/Rükl's Moon Atlas/Canon 400D/5mW green laser

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Posted by zachsdad on Wednesday, February 26, 2014 9:39 AM

I've stopped down the 120mm once, or twice for viewing the Moon, or planets, but not often. It seemed to work okay to knock down the brightness of the Moon, but usually I use my larger scope for solar system viewing. The short tube (600mm) 120 is a great open cluster scope, and excells at giving very pleasing wide field views of Messier objects.

Terry's Law of Cosmology: "Light travels faster than sound. That's why some people appear bright until you hear them speak."

18" Obsession Classic dob #1665

10" Orion Skyquest Classic dob

 120mm Orion ST achromat

15 X 70 celestron Skymaster binoculars

  • Member since
    July, 2003
  • From: Eastern SD.
Posted by johnjohnson on Friday, February 28, 2014 8:02 AM

Terry great to hear from you again. The 120 ST is a great grab and go. Friend has one and with a extention tube he can actually do AP with it. Processing out the CA is tough though. Let us know how the Versa go works with it.

JJ

20" F5 Obsession, OMI mirror .987 Strehl. 10" F4.7 reflector. 6" F5 ST reflector. 120mm F7.5 EON. 80mm F11.3 guide scope. SkyWatcher EQ-6 Hyper Tuned.   Flicker Astro Site   More Astro Images

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Posted by zachsdad on Friday, February 28, 2014 8:39 AM

I should have it on Tuesday, so the midwest should prep[are for clouds Crying

Terry's Law of Cosmology: "Light travels faster than sound. That's why some people appear bright until you hear them speak."

18" Obsession Classic dob #1665

10" Orion Skyquest Classic dob

 120mm Orion ST achromat

15 X 70 celestron Skymaster binoculars

Moderator
  • Member since
    October, 2007
Posted by zachsdad on Wednesday, March 05, 2014 7:23 AM

The Versago II arrived yesterday and I put the 120 on it after work. The whole set-up is lighter that the EQ1 without the scope attached. It is very easy to pick up and move outside. The clouds I apparently ordered with the mount started arriving just after dark, but I did have a few minutes to take a quick look at the sword area of Orion and a peek at M45. 

The motion of the mount in both altitude and azmuth is very smooth with just the right amount of 'sticktion'. The new focuser made dialing in pin-point stars a breeze. At 75X (8MM Orion Stratus ep) the four primary stars of the Trapizium were clearly visable and there was a fair anout of detail (and some pale green color) to the nebula itself. The Pleiades were a wonderful sight at 25X (24mm Hyperion) with some of the reflection nebulosity easily seen.

This new arrangement for my small scope will get a lot of use.

Terry's Law of Cosmology: "Light travels faster than sound. That's why some people appear bright until you hear them speak."

18" Obsession Classic dob #1665

10" Orion Skyquest Classic dob

 120mm Orion ST achromat

15 X 70 celestron Skymaster binoculars

Moderator
  • Member since
    October, 2007
Posted by zachsdad on Wednesday, March 12, 2014 12:47 PM

On Sunday I took the ST outside to align the new EZ Finder Delux, and as I was attempting to center the red dot in elevation the adjusting screw broke! All it took was one phone call to Orion and a replacement is on its way. It should be here Friday along with some clear skies and a waxing moon. I'll get some photos of the new set-up posted when I get the finder back.

Terry's Law of Cosmology: "Light travels faster than sound. That's why some people appear bright until you hear them speak."

18" Obsession Classic dob #1665

10" Orion Skyquest Classic dob

 120mm Orion ST achromat

15 X 70 celestron Skymaster binoculars

  • Member since
    October, 2005
Posted by leo731 on Thursday, March 13, 2014 3:00 PM

I bet that was a letdown. I could make a joke about a loose screw but I shall restrain myself. Embarrassed

I cannot wait to see your pictures of the new setup.  From the first light report above it sure looks like you are going to enjoy this scope and mount a lot more than before.

L

A nebula in the eyepiece is worth two in the Atlas.

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