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Classic Refractor-Like Reflectors

Classic Equipment Reflector
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34 replies to this topic

#26 wmaalouli

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Posted 28 November 2021 - 07:44 AM

The only surviving picture of my Celestron 4.5" reflector

 

Celestron C4.5 telescope.jpg


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#27 KBHornblower

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Posted 28 November 2021 - 02:25 PM

By the standards of this forum, the custom-made 6-inch f/8 Newtonians in the March 1992 Sky and Telescope test articles would be classics.  The best one, figured to 1/10 wave or better, held its own with good refractors of about the same aperture.  A slight softening of detail on Jupiter was visible to experienced observers in moments of superb seeing.  Most of the time it left nothing to be desired.


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#28 icomet

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Posted 02 December 2021 - 01:41 AM

These might do the trick ----

 

Ed Beck 6" f/10

C.A. 12.5" f/7 Mod. D "Transportable"

 

Clear Skies 

Attached Thumbnails

  • 6_ blue sm.jpg
  • Cave Astrola 1sm.jpg

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#29 wmaalouli

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Posted 02 December 2021 - 07:15 AM

These might do the trick ----

 

Ed Beck 6" f/10

C.A. 12.5" f/7 Mod. D "Transportable"

 

Clear Skies 

Beautiful scopes. Do you do any imaging with them?


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#30 steve t

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Posted 02 December 2021 - 08:36 AM

These might do the trick ----

 

Ed Beck 6" f/10

C.A. 12.5" f/7 Mod. D "Transportable"

 

Clear Skies 

Wow, nice looking scopes.


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#31 oldmanastro

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Posted 02 December 2021 - 08:54 AM

I had a Coulter 8" f/7 that gave wonderful planetary views. My only Newtonian now is the Criterion RV-6 Dynascope. This one provides refractor like images of the planets. The optics were recoated just a few months ago and the telescope and mount taken apart, cleaned and repainted.

Attached Thumbnails

  • RV-6on Moon.JPG

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#32 clamchip

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Posted 02 December 2021 - 10:29 AM

His name is Gort because I once tried to drill a hole in him and the bit just bounced off.

Late model Edmund mostly, the primary is unknown.

Notice the primary is unusually thick. And no mirror clips. Mirror clips can create a tiny

amount of diffraction, Gort will see it as a threat and vaporize them.

Robert

 

post-50896-0-80072300-1588524719.jpg

post-50896-0-03485300-1510895825.jpg


Edited by clamchip, 02 December 2021 - 10:31 AM.

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#33 icomet

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Posted 02 December 2021 - 11:53 AM

Ahhh. Gort's "cosmic hockey puck" is revealed.   grin.gif

 

Clear Skies. 


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#34 icomet

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Posted 02 December 2021 - 11:59 AM

The one in the  center is no longer with us. Has been dismantled. Sold the DS-16  mount. 

O.C. 10" f/7.5 mirror. 

 

Clear Skies. 

 

Attached Thumbnails

  • 3 long Newtonians sm.jpg

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#35 CHASLX200

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Posted 02 December 2021 - 07:04 PM

I had a Coulter 8" f/7 that gave wonderful planetary views. My only Newtonian now is the Criterion RV-6 Dynascope. This one provides refractor like images of the planets. The optics were recoated just a few months ago and the telescope and mount taken apart, cleaned and repainted.

My 8" also was a killer but the mount was not enough.


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