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Large Diameter Eyepiece Projection Adapter



 
 
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  #1  
Old September 23rd 03, 03:56 PM
Kevin hansen
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Default Large Diameter Eyepiece Projection Adapter

I'm having trouble finding an eyepiece projection adapter to use with my
Radian eyepieces. The adapter from Scopetronics has the largest inside
diameter that I've seen, but it's still too narrow and too short for the
Radians.

Does a larger eyepiece projection adapter exist?

Thank you,
Kevin
  #2  
Old September 23rd 03, 04:22 PM
Jerry Pool
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Default Large Diameter Eyepiece Projection Adapter

I'm having trouble finding an eyepiece projection adapter to use with my
Radian eyepieces. The adapter from Scopetronics has the largest inside
diameter that I've seen, but it's still too narrow and too short for the
Radians.

Does a larger eyepiece projection adapter exist?


Not sure what size those eyepieces are but Celestron's Tele-extender fits over
my 35mm wideangle ep.

http://hometown.aol.com/nlpjp/index.html
  #3  
Old September 23rd 03, 04:51 PM
Pere Sanz
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Default Large Diameter Eyepiece Projection Adapter


Hi Kevin,

Astro-Physics (http://www.astro-physics.com) has an Eyepiece
Projection Tele-Extender (CEP000) which can be used with radians, tak's
and all those big eyepieces. The only point is that it attaches to 2"
focusers.

Cheers,

Pere Sanz


Kevin hansen wrote:

I'm having trouble finding an eyepiece projection adapter to use with my
Radian eyepieces. The adapter from Scopetronics has the largest inside
diameter that I've seen, but it's still too narrow and too short for the
Radians.

Does a larger eyepiece projection adapter exist?

Thank you,
Kevin


  #4  
Old September 23rd 03, 06:41 PM
Jose Suro
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Default Large Diameter Eyepiece Projection Adapter


Astro-Physics (http://www.astro-physics.com) has an Eyepiece
Projection Tele-Extender (CEP000) which can be used with radians, tak's
and all those big eyepieces. The only point is that it attaches to 2"
focusers.


Hi,

I own the Astro-Physics CEP000 and the matching and required adapter PFCT---
and the Radians will not fit inside. The only eyepiece projection adapters
that I have found that will fit both Radians and 2" eyepieces are made by
Borg:

http://www.sciencecenter.net/hutech/...proj/index.htm

How it couples to a standard 2-inch adapter? I have no clue.

Now for Afocal projection I use the Tele Vue Radian adapters and they work
great.

Take Care,

JAS


  #5  
Old September 23rd 03, 05:53 PM
Steve Little
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Default Large Diameter Eyepiece Projection Adapter


"Kevin hansen" wrote in message
s.com...
I'm having trouble finding an eyepiece projection adapter to use with my
Radian eyepieces. The adapter from Scopetronics has the largest inside
diameter that I've seen, but it's still too narrow and too short for the
Radians.

Does a larger eyepiece projection adapter exist?

Thank you,
Kevin


TeleVue makes these to fit the Radians, see three different threads, don't
know if it's in the size you need.

http://www.buytelescopes.com/product...m=3&d=4&page=2


  #6  
Old September 23rd 03, 07:29 PM
LarryG
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Default Large Diameter Eyepiece Projection Adapter

On Tue, 23 Sep 2003 14:56:36 GMT, Kevin hansen wrote:

I'm having trouble finding an eyepiece projection adapter to use with my
Radian eyepieces. The adapter from Scopetronics has the largest inside
diameter that I've seen, but it's still too narrow and too short for the
Radians.

Does a larger eyepiece projection adapter exist?

Thank you,
Kevin


Why not just use a standard e.p. projection adapter with a
good Orthoscopic eyepiece?

The big eyepieces are primarily aimed at impressive views
directly with they eye, rather than for photography.

Cheers,
Larry G.
  #7  
Old September 23rd 03, 11:37 PM
Kevin hansen
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Default Large Diameter Eyepiece Projection Adapter

Thank you, all. I was hoping to avoid buying more eyepieces, but I'll look
into the Ortho option.

The EP adapter is to go between an Optec TCF-S focuser and an ST-10 camera.

I called Televue and was told that their EP adapter would not fit the
Radians which are the smallest diameter eyepieces I have.

If the Radians won't fit in in the Astro-Physics adapter,that leaves me
with the Borg. The Borg adapters look like they will work. If I were to get
the 2-inch adapter, then I could also use my 24 Panoptic (1.25-inch) which
is even wider than the Radians.

Other than the mechanical hassle I'm running into, is there a disadvantage
to using my more visual-oriented eyepieces instead of an orthoscopic?

Thank you,
Kevin


LarryG wrote in
news
On Tue, 23 Sep 2003 14:56:36 GMT, Kevin hansen
wrote:

I'm having trouble finding an eyepiece projection adapter to use with
my Radian eyepieces. The adapter from Scopetronics has the largest
inside diameter that I've seen, but it's still too narrow and too
short for the Radians.

Does a larger eyepiece projection adapter exist?

Thank you,
Kevin


Why not just use a standard e.p. projection adapter with a
good Orthoscopic eyepiece?

The big eyepieces are primarily aimed at impressive views
directly with they eye, rather than for photography.

Cheers,
Larry G.


  #8  
Old September 24th 03, 01:35 AM
WayneH
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Default Large Diameter Eyepiece Projection Adapter

On Tue, 23 Sep 2003 22:37:41 GMT, Kevin hansen
wrote:

I called Televue and was told that their EP adapter would not fit the
Radians which are the smallest diameter eyepieces I have.


That's interesting, given the info you'll find he

http://www.televue.com/engine/page.asp?ID=157

Wayne Hoffman
33° 49" 17' N 117° 56" 41' W
"Don't Look Down"

http://home.pacbell.net/w6wlr/
  #9  
Old September 24th 03, 01:49 AM
Jose Suro
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Default Large Diameter Eyepiece Projection Adapter

Other than the mechanical hassle I'm running into, is there a disadvantage
to using my more visual-oriented eyepieces instead of an orthoscopic?

Thank you,
Kevin


Hi,

None that I know of. Top of the line eyepieces like Radians and Panoptics
have very good optics, and on top of this, there is extra pluses like
longer eye relief and less vignetting.

Take Care,

JAS


 




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