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Show us your non- dob Newtonian

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#1 Bonco

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Posted 18 September 2016 - 03:48 PM

The moderators have decided to pin this topic for the purpose of posting pictures of your non-Dobsonian telescopes as there is already a pinned thread for dobs. Thank you and enjoy! - Reflector forum mods.

 

 

Sure would like to see forum members post pictures of their Newtonian(s). DOB's are great but so are Newt's. Some are very attractive either commercially made or homemade. Let's see them!

My offering is the venerable RV6. Purchased in 1960 or so and recently refurbished.

Bill

 

RV-2.jpg


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#2 chrysalis

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Posted 18 September 2016 - 04:12 PM

Me in 1969 with my 4-1/4" Palomar Jr. This was just before I mowed lawns all summer to build and then add to this scope a 2" f/15 astrocamera that I made from a 120 box camera and an aluminum tube and lens from A.E. Jaeger. I had a darkroom set up in my father's garage to develop my Tri-X Pan pictures. I seriously did nothing but eat sleep and live astronomy for several years!!!

 

mark 1969.jpg

 

Here is a pair of pictures of a Pleiades occultation somewhere in between 1969 and 1971 I think taken with that camera (and push processing the film to 1600 speed - by counting seconds in the dark!

 

moon-pleiades-14yo.JPG


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#3 Bomber Bob

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Posted 18 September 2016 - 04:20 PM

I recently acquired this 1971 RV6 in a very rare local purchase (Classics don't pop up around here!).  The previous / original owner made some improvements that I'll undo this Fall.

 

RV6 - First Setup S02.jpg


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#4 Garyth64

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Posted 18 September 2016 - 04:55 PM

Here's my home made 6" f/9.6 newt on a home made mount:

 

6 on homemade mount.jpg

 

I reworked the mount and installed a Cave drive:

 

6 on the cavedrive.jpg

 

I ground the mirror in 1966.  Refurbished the tube in 2015.

 

It has the original coatings, and they are very good.


Edited by Garyth64, 18 September 2016 - 06:08 PM.

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#5 Garyth64

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Posted 18 September 2016 - 04:57 PM

Here's my 10" f/7 homemade newt on a Meade RG mount:

 

10 on RG mount a.jpg

 

I ground the mirror in 1975.  I refurbished the tube and had the mirror re-coated in 2015.


Edited by Garyth64, 18 September 2016 - 06:07 PM.

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#6 pstarr

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Posted 18 September 2016 - 05:54 PM

12.5" Home built F-4.8 Newt. and 2" shaft mount.

 

 

IMG_0020.jpeg

Attached Thumbnails

  • IMG_1291.jpeg

Edited by pstarr, 19 September 2016 - 04:05 PM.

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#7 Astrojensen

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Posted 19 September 2016 - 03:18 AM

My 150mm f/8 Sky-Watcher newtonian on EQ-6 mount with shortened legs. A stable, enjoyable telescope:

 

gallery_55742_4249_83221.jpg

 

I have since replaced the 1.25" R&P focuser with a 2" crayford with 1:10 microfocuser and the finderscope with a 10 x 50. It's a really good planetary telescope, but deep sky performance is nothing to sneeze at. I do want to find a pair of rotating tube rings for it.

 

It may soon be replaced by a 150mm f/10 with an old mirror in an ATM tubus.

 

 

Clear skies!
Thomas, Denmark  


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#8 Mike G.

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Posted 19 September 2016 - 04:19 AM

my 8" f4.9 , CG5-ASGT and my homemade pier.

8inch.jpg


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#9 stargazer193857

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Posted 19 September 2016 - 08:37 AM

Wow. A whole lot of equitorial mounts, with tracking. I guess once you get serious, you want to stay on one object a long time and study it. No more pushing the scope every 60 seconds and waiting for the shakes to die down.



#10 Astrojensen

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Posted 19 September 2016 - 09:12 AM

Wow. A whole lot of equitorial mounts, with tracking. I guess once you get serious, you want to stay on one object a long time and study it. No more pushing the scope every 60 seconds and waiting for the shakes to die down.

Basically, yes. I experiment with mine to see how close I can get to apo performance for pennies on the dollar. Pretty dang close, it seems. 

 

 

Clear skies!
Thomas, Denmark


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#11 Mike G.

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Posted 19 September 2016 - 11:23 AM

Wow. A whole lot of equitorial mounts, with tracking. I guess once you get serious, you want to stay on one object a long time and study it. No more pushing the scope every 60 seconds and waiting for the shakes to die down.

 

A good chair and a good mount makes all the difference. Just have to watch out for those meridian flips!


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#12 Astrojensen

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Posted 19 September 2016 - 12:07 PM

 

A good chair and a good mount makes all the difference. Just have to watch out for those meridian flips!

At least at lower altitudes, it's often possible to track for several hours beyond the meridian, without doing a flip. At least with most mounts, as long as the scope doesn't hit the tripod.

 

 

Clear skies!
Thomas, Denmark


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#13 Garyth64

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Posted 19 September 2016 - 01:25 PM

I see no problem with observing past the meridian.  As was just mentioned, make sure the scope doesn't hit the mount, and also make sure the CW is secure.  Some people think that the telescope just doesn't look right in that position.  For me, depending on the object, I find it's easier to look down into the eyepiece than to look up into it.  Lately, I've been doing most of my observing "past the meridian".

 

Couple of months ago I  had both my 6" and 10" out looking at Jupiter.   You can see they are past the meridian.

 

two scopes.jpg


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#14 Astrojensen

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Posted 19 September 2016 - 01:43 PM

 

For me, depending on the object, I find it's easier to look down into the eyepiece than to look up into it.

:waytogo: Exactly!  

 

 

Clear skies!

Thomas, Denmark


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#15 Pierre Lemay

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Posted 19 September 2016 - 02:00 PM

Wow. A whole lot of equitorial mounts, with tracking. I guess once you get serious, you want to stay on one object a long time and study it. No more pushing the scope every 60 seconds and waiting for the shakes to die down.

12 pouces en 1978.jpg

 

This 12 inch f/5.2 fork mounted newtonian unfortunately no longer exists but I had a lot of fun building and using it in the '70s. It used a double bicycle chain drive attached to a synchronous motor, driving a thick, masonite disc on a slip clutch (which I still have). It worked really, really well and there was very little vibration, but it was very heavy and not convenient to transport. The scope won first prize at the 1978 Stellafane convention in what was then known as the "Newtonian" category. It will be rebuilt into a more portable instrument in the coming years.

 

Meridian flip? Did anyone mention meridian flip? Not a problem with this scope!


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#16 Mike G.

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Posted 19 September 2016 - 02:42 PM

Here's my home made 6" f/9.6 newt on a home made mount:

 

attachicon.gif6 on homemade mount.jpg

 

I reworked the mount and installed a Cave drive:

 

attachicon.gif6 on the cavedrive.jpg

 

I ground the mirror in 1966.  Refurbished the tube in 2015.

 

It has the original coatings, and they are very good.

That has to be one of the nicest pillow block mounts ever!  What a nice piece of work!


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#17 Garyth64

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Posted 19 September 2016 - 04:04 PM

 

Here's my home made 6" f/9.6 newt on a home made mount:

 

attachicon.gif6 on homemade mount.jpg

 

I reworked the mount and installed a Cave drive:

 

attachicon.gif6 on the cavedrive.jpg

 

I ground the mirror in 1966.  Refurbished the tube in 2015.

 

It has the original coatings, and they are very good.

That has to be one of the nicest pillow block mounts ever!  What a nice piece of work!

 

Thanks Mike.  I have to say though, I got my inspiration from Opticraft Machining, and the mount evolved over the years.



#18 GShaffer

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Posted 19 September 2016 - 05:53 PM

A bit more modern than most that have been posted but this 10" f/5 gets the job done for me......

 

DSCF1011.jpg DSCF1012.jpg


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#19 Mike G.

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Posted 19 September 2016 - 10:35 PM

A bit more modern than most that have been posted but this 10" f/5 gets the job done for me......

 

attachicon.gifDSCF1011.jpgattachicon.gifDSCF1012.jpg

Nice rotating rings!



#20 Astrojensen

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Posted 20 September 2016 - 01:58 AM

A fantastic setup!

 

 

Clear skies!
Thomas, Denmark



#21 CHASLX200

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Posted 20 September 2016 - 05:13 AM

I want that GM mount.



#22 pstarr

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Posted 20 September 2016 - 08:37 AM

Here are a few of the different scopes I've had on my homemade 2" shafted mount over the years.

10" f-6

12.5" f-6

C-9.25

And of course the current 12.5" f-4.8 shown on page one of this tread.

 

10 in observatory.JPG

astronomy stuff 007.jpeg

astronomy stuff 025.jpeg

 

 

 


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#23 Stephen Kennedy

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Posted 21 September 2016 - 01:41 PM

IMG_1168.JPG

This is my 210 mm F7.7 Mikage Newtonian OTA on Pentax MS-5 GEM. I purchased this OTA and GEM in 1988 while stationed in Japan. It still works flawlessly. Since I took this picture I have changed the focuser to a Feather Touch from Starlight Instruments.
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#24 eyepiecedropper

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Posted 21 September 2016 - 02:22 PM

http://7988666366_3feed11a2e_z.jpgSDC11946 by c64forever, auf Flickr

 

http://7988006260_f617c5a40f_z.jpgSCOPE by c64forever, auf Flickr

 

8229789581_0a0a5762c2_b.jpgSDC12081 by c64forever, auf Flickr


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#25 Mikefp

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Posted 22 September 2016 - 06:10 AM

my latest 12.5" Cave

 

.DSC01025.JPG


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