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Equipment Discussions >> Refractors

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LLEEGE
True Blue
*****

Reged: 03/03/05

Loc: Cloud-chester,NY
Post a picture of your refractors (PART 5)
      #5123639 - 03/15/12 11:35 AM

Time to start a new thread.

Links to part 4, 3, 2 and of course, the original.


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PhilCo126
Post Laureate


Reged: 01/14/05

Loc: coastline of Belgium
Re: Post a picture of your refractors (PART 5) new [Re: LLEEGE]
      #5123650 - 03/15/12 11:42 AM

I'll start with another picture of my TS 152 mm Achro on CGEM - Computerized German Equatorial Mount capable of carrying 20 kilograms:



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buckeyestargazer
Carpal Tunnel
*****

Reged: 01/12/08

Loc: IN, USA
Re: Post a picture of your refractors (PART 5) new [Re: LLEEGE]
      #5123663 - 03/15/12 11:52 AM Attachment (497 downloads)

I recently acquired an APM/TMB 115mm CNC Classic refractor that I'm super excited about. I also have an AT65EDQ (pictured on top of the case in lower right corner).

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Jeronimo Cruz
professor emeritus
*****

Reged: 09/01/08

Loc: Tucson, Arizona
Re: Post a picture of your refractors (PART 5) new [Re: PhilCo126]
      #5123668 - 03/15/12 11:55 AM Attachment (531 downloads)

Here's mine.

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RTLR 12
Post Laureate
*****

Reged: 12/04/08

Loc: The Great Pacific NorthWest
Re: Post a picture of your refractors (PART 5) new [Re: Jeronimo Cruz]
      #5123755 - 03/15/12 12:45 PM Attachment (446 downloads)

Celestron Onyx with WO 2 speed retrofit on CG-5 with 7½ lb. counter weight. Long cord wired into HC. Coiled 90º power cord.

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David PavlichAdministrator
Transmographied
*****

Reged: 05/18/05

Loc: Mandeville, LA USA
Re: Post a picture of your refractors (PART 5) new [Re: RTLR 12]
      #5123984 - 03/15/12 02:47 PM

Quote:

Celestron Onyx with WO 2 speed retrofit on CG-5 with 7½ lb. counter weight. Long cord wired into HC. Coiled 90º power cord.




Stan, if ever there was a post that said "tinkerer" this is it! Good stuff.

David


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RTLR 12
Post Laureate
*****

Reged: 12/04/08

Loc: The Great Pacific NorthWest
Re: Post a picture of your refractors (PART 5) new [Re: David Pavlich]
      #5124526 - 03/15/12 09:09 PM

Thanks, David. One more thing...If you'll notice the 3 small holes in the DEC plastic cover...They are there so that I can adjust the worm gear to compensate for temp variations.

Stan


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John Huntley
scholastic sledgehammer
*****

Reged: 07/16/06

Loc: South West England
Re: Post a picture of your refractors (PART 5) new [Re: RTLR 12]
      #5124610 - 03/15/12 10:35 PM Attachment (428 downloads)

Here is my Vixen ED102SS on a Skywatcher AZ-4 mount and setup for white light solar observing.

Edited by John Huntley (03/15/12 10:35 PM)


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David PavlichAdministrator
Transmographied
*****

Reged: 05/18/05

Loc: Mandeville, LA USA
Re: Post a picture of your refractors (PART 5) new [Re: RTLR 12]
      #5124618 - 03/15/12 10:37 PM

Very convenient!

David


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TONGKW
Pooh-Bah


Reged: 01/16/07

Re: Post a picture of your refractors (PART 5) new [Re: David Pavlich]
      #5124632 - 03/15/12 10:45 PM Attachment (377 downloads)

The original 80 mm f/6 achromatic doublet lens of my William Optics ZS 80 OTA has been replaced with a 80 mm f/6.95 APOGRADE FL doublet lens. Besides the much improved performance and the almost CA free view, I can now use the OTA with a binoviewer without the need for a Barlow lens.

K W TONG
C8+CG5 GT, TSA102+HEQ5 PRO, MK67+Voyager, NexStar 6SE, C5+Mizar K, WO ZS80FD+Kenko NES, Megrez 72FD+Kenko KDS, Mini Borg 50, PST


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genethethird
sage
*****

Reged: 01/05/10

Loc: NC
Re: Post a picture of your refractors (PART 5) new [Re: TONGKW]
      #5124695 - 03/15/12 11:44 PM

That's really nice ^

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Mike Clemens
Frozen to Eyepiece
*****

Reged: 11/26/05

Loc: Alaska, USA
Re: Post a picture of your refractors (PART 5) [Re: genethethird]
      #5124754 - 03/16/12 12:46 AM

TEC200 moving around today in the obs... finally got the snow of the roof today and could get it open. Sadly the scope hasn't moved around in a couple months due to work schedule/sickness/10 feet of snow this Winter etc.
http://youtu.be/0zCJjQ9yO6g
I hope to get some late season galaxies.


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Jim Curry
Carpal Tunnel
*****

Reged: 10/29/07

Loc: STL
Re: Post a picture of your refractors (PART 5) [Re: Mike Clemens]
      #5124872 - 03/16/12 05:34 AM

Mike:
I guess that's called coming out of hibernation.

Jim


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Bob Andersson
member


Reged: 03/28/11

Re: Post a picture of your refractors (PART 5) [Re: LLEEGE]
      #5124881 - 03/16/12 05:46 AM

Hi folks,

I thought I'd share the new imaging setup. I don't have the luxury of a garden large enough to host a dedicated observatory so the solution I started planning a year ago had to at least look presentable during daylight.


The pier was made in two stages with a deep foundation poured using regular cement plus a plasticiser with 2 metre stainless steel rebar protruding about a metre above ground level. Once that had cured I then poured the top half into a mold and also poured the detachable top upon which rests the armillary. I used the same recipe for the cement with the addition of a dye to give a stone effect. To give an idea of scale the pier without the top stands just under 1.3 metres (50 inches) tall. When I poured the pier I embedded four stainless steel eye-bolts. This was done using the same stainless steel circular plate you can see in the top right image to get the positioning absolutely precise. The two circular plates were made for me to my design by a laser cutting company so I was able to specify a tight tolerance between the width of the various bolts and the holes they fit through.

Assembly is pretty straightforward. There is still a very slight (small fraction of a millimetre) play when the two plates are attached but I always make sure I rotate each one fully clockwise before tightening up the nuts. The aim was to get a totally repeatable set-up each time and indications are that I actually see an accuracy of about 1 minute of arc. The heaviest detachable item by far is the mounting itself but I've avoided any hernias so far!

Here's a closer view of the telescope where you can just about see the four bolts holding down the bottom plate and the bolts fastening the top plate to the bottom one. The mounting is bolted to the top plate but you can't see that in the image.


The equipment list is:
  • TEC 140 telescope: 140mm objective and a field flattener at the other end giving f/7
  • Kendrick Dew Heater: Essential in the UK
  • ASA DDM60 Pro: The Pro version includes a USB hub
  • Starlight Instruments motorised focuser
  • A power distribution/switch box
  • An FLI CenterLine filter wheel
  • An FLI ML16803 astronomical CCD

The USB hub in the DDM60 Pro mount means that all I need is a single 12V power line and a USB connection running to the mounting. Both power and USB are routed internally and are available by the telescope which means no tangled cables. The focuser, filter wheel and camera are all controlled via USB as, indeed, is the mounting itself. As a result, although I need a micro-ATX sized computer relatively close to the telescope together with a 12V power supply, I can take advantage of a long HDMI cable and a wireless mouse and keyboard to control the whole shebang from inside my conservatory which is just out of shot on the left. Luxury!

Testing has gone really well and I've already demonstrated an ability to take 1,000 second exposures unguided. That's down to some remarkable technology in the ASA mounting, although I'll take credit for doing the calibration work.

Bob.


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Bowmoreman
Clear enough skies
*****

Reged: 09/11/06

Loc: Bolton, MA
Re: Post a picture of your refractors (PART 5) [Re: Bob Andersson]
      #5124939 - 03/16/12 07:02 AM

Very nice setup, Bob... Clever on the dual use as well!

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PhilCo126
Post Laureate


Reged: 01/14/05

Loc: coastline of Belgium
Re: Post a picture of your refractors (PART 5) [Re: Bowmoreman]
      #5125032 - 03/16/12 08:35 AM

Bob that's the most amazing setup, probably the best I've seen
Refractor-Phill


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Dave Ponder
super member
*****

Reged: 04/12/06

Loc: Greenville, SC
Re: Post a picture of your refractors (PART 5) [Re: PhilCo126]
      #5125092 - 03/16/12 09:29 AM

Very good looking mount Bob! What is the dampening time on that flimsy mount? Just kidding, I am green with envy, would love to have a solid mount like yours!

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BarrySimon615
Pa Bear
*****

Reged: 03/01/04

Loc: New Orleans, LA
Re: Post a picture of your refractors (PART 5) [Re: Dave Ponder]
      #5125124 - 03/16/12 09:51 AM

Very nice setup! Looks like you live pretty far nice judging by the angle of the RA axis on your mount.

Barry Simon


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KevH
sage
*****

Reged: 03/08/10

Loc: Maine
Re: Post a picture of your refractors (PART 5) [Re: BarrySimon615]
      #5125148 - 03/16/12 10:02 AM

My new Canadian Telescopes 102mm F11 waiting for nightfall.



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johnnyha
Postmaster
*****

Reged: 11/12/06

Loc: Sherman Oaks, CA
Re: Post a picture of your refractors (PART 5) [Re: Bob Andersson]
      #5125182 - 03/16/12 10:24 AM

That's awesome Bob. Hmmm... I think I could talk my wife into a "birdbath"... with removable top

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