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Tell me about your Televue Telescope

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#376 imtl

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Posted 24 March 2020 - 04:40 AM

Can’t help but notice you have the KING KONG of oculars, the mighty Tele Vue  31mm Nagler. Love it.

Yep. Indeed it is something else combined with the NP101 its just sublime. The Ethos 17mm as well.


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#377 MarkGregory

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Posted 24 March 2020 - 05:44 AM

Yep. Indeed it is something else combined with the NP101 its just sublime. The Ethos 17mm as well.

Hmmmmm, let me ask you a question. Which Televue ocular would you suggest as a “finder” for  my TV-85? On my other scopes I have small dedicated finder scopes. However, I don’t feel like adding more stuff on the main tube of my TV-85. Figure I can just start in a wide field piece instead. Mark



#378 caronb

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Posted 24 March 2020 - 05:48 AM

Hmmmmm, let me ask you a question. Which Televue ocular would you suggest as a “finder” for  my TV-85? On my other scopes I have small dedicated finder scopes. However, I don’t feel like adding more stuff on the main tube of my TV-85. Figure I can just start in a wide field piece instead. Mark

I use a Panoptic 35 as my “Finder” for my TV85.  Fantastic!


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#379 MarkGregory

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Posted 24 March 2020 - 05:56 AM

I use a Panoptic 35 as my “Finder” for my TV85.  Fantastic!

Thank you very much. Mark



#380 imtl

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Posted 24 March 2020 - 06:30 AM

Hmmmmm, let me ask you a question. Which Televue ocular would you suggest as a “finder” for  my TV-85? On my other scopes I have small dedicated finder scopes. However, I don’t feel like adding more stuff on the main tube of my TV-85. Figure I can just start in a wide field piece instead. Mark

The usual answer is that it depends. Your eyes (age), light pollution in your area, budget etc. The pan 35mm as was suggested here is a great eyepiece. The Nagler 31mm will give you wider FOV with more magnification which will give darker background. But it is definitely more expensive and weighs more than the pan 35mm. I know that you cannot go wrong with either that is for sure. You could also go for the widest FOV with the pan 41mm. It still costs less then the Nagler 31mm. But that will be an exit pupil of 5.8mm which will give you washouts in light polluted areas. 

 

To conclude, if budget is not the main issue then I would go for the Nagler 31mm. Better correction, darker sky background, larger FOV then the pan 35mm. But that just my opinion 


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#381 nicknacknock

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Posted 24 March 2020 - 06:44 AM

Hmmmmm, let me ask you a question. Which Televue ocular would you suggest as a “finder” for  my TV-85? On my other scopes I have small dedicated finder scopes. However, I don’t feel like adding more stuff on the main tube of my TV-85. Figure I can just start in a wide field piece instead. Mark

I would say it depends on the TFOV you are comfortable with for star hopping, Vs the weight of the "finder" ocular - this also in relation to the other eyepieces you use (AFOV & weight). Correction needed also should be considered. If you don't care much for some aberrations in a finder eyepiece, even an Erfle will serve just fine. 

 

I love star hopping maybe more than actually viewing a certain object, so I want to enjoy the experience as much as possible, with the best (for me) quality eyepiece and it's usually Uncle Al's green ones that I use. Over the years I used to use 6x30 RACI and 8x50 RACI but not any more, as I star hop fast enough with say 2.5° TFOV, blindingly fast with 4° TFOV and a bit slower, but steady with even 1° TFOV. A RDF gets me in the general area and then the "finder" eyepiece takes over.

 

For the TV85, a Nagler 26mm, Panoptic 27mm or Panoptic 35mm, provide a wide enough FOV. If weight is not a problem, a Nagler 31mm will certainly keep you happy.


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#382 MarkGregory

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Posted 24 March 2020 - 06:57 AM

Unfortunately with the proliferation of cheaply made products from China, it is still easy to go wrong.  After a long absence from Astronomy and quite a bit out of touch with who makes what, I purchased a well regarded 80 ED Triplet APO in March.  By May, I had enough.  Focus problems wrecked most nights, the dew shield would not stay in place without a big rubber band to hold it up and the last straw was when I attempted to resolve some of these issues, the "Customer Relations" department could not help me because it was Friday afternoon and they were closed. 

 

My wife's solution was to suggest that I get rid of it and buy the best small telescope we could afford.  At this point, company reputation was as important as equipment reputation and I went straight to Tele Vue.  I have been enjoying my TV-85 since May and expect this to continue for many years to come.  Is the TV-85 outdated/out-designed?  Probably but so what?  It is still an excellent instrument for me.  Plus for me astronomy is entertainment, not scientific research.  My TV-85 being only a doublet instead of a triplet is irrelevant to me.   

 

Oh, and BTW, I had a couple of questions and when I contacted Tele Vue, the person at the other end of the line was Al Nagler.  All questions were answered.

All very solid reasons for buying a TV-85, including the fact that you have a very smart and understanding wife. Mark



#383 Compressorguy

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Posted 24 March 2020 - 06:58 AM

My solution for a finder on my TV Genesis was to add an Orion 9x50 finder and quick detach guide scope rings. It’s keeps the CG as low as possible and I like the low profile look vs a stalk mount. Works perfectly and I can start with higher mag eyepieces without having to keep switching back and forth. Which with a Panoramic mount avoids its balance issues. Plus it was cheap as I picked up the finder used off this site. Proportionately I think it looks good. Those huge silver thumb screws are getting replaced with some small black nylon ones though.

 

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Edited by Compressorguy, 24 March 2020 - 07:06 AM.

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#384 Compressorguy

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Posted 24 March 2020 - 07:08 AM

and another angle.

 

72EAE218-5821-489D-BD74-C75F879A33AA.jpeg

 

 


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#385 MarkGregory

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Posted 24 March 2020 - 07:33 AM

I would say it depends on the TFOV you are comfortable with for star hopping, Vs the weight of the "finder" ocular - this also in relation to the other eyepieces you use (AFOV & weight). Correction needed also should be considered. If you don't care much for some aberrations in a finder eyepiece, even an Erfle will serve just fine. 

 

I love star hopping maybe more than actually viewing a certain object, so I want to enjoy the experience as much as possible, with the best (for me) quality eyepiece and it's usually Uncle Al's green ones that I use. Over the years I used to use 6x30 RACI and 8x50 RACI but not any more, as I star hop fast enough with say 2.5° TFOV, blindingly fast with 4° TFOV and a bit slower, but steady with even 1° TFOV. A RDF gets me in the general area and then the "finder" eyepiece takes over.

 

For the TV85, a Nagler 26mm, Panoptic 27mm or Panoptic 35mm, provide a wide enough FOV. If weight is not a problem, a Nagler 31mm will certainly keep you happy.

Thank you. I am thinking the Panoptic 35 will do the trick.


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#386 Compressorguy

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Posted 24 March 2020 - 08:15 AM

 

For the TV85, a Nagler 26mm, Panoptic 27mm or Panoptic 35mm, provide a wide enough FOV. If weight is not a problem, a Nagler 31mm will certainly keep you happy.

Would love to have one one of these wide field TV eyepieces for my Genesis one day. Still saving my pennies, lol.


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#387 25585

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Posted 24 March 2020 - 09:37 AM

TV 55mm Plossl gives lowest magnification with sny scope.

 

I also have the Empress of eyepieces, a 31mm Celestron Axiom LX 82°. Equally as good as its Nagler rival.


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#388 doole

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Posted 24 March 2020 - 10:49 AM

An 85 and a 127IS, neither of which have seen starlight yet. Long story, involving a divorce. Going to be a busy summer. The 85 is on a belt-modded HEQ5 Pro, and the 127 is on a CEM60.

Edited by doole, 24 March 2020 - 10:51 AM.

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#389 MarkGregory

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Posted 24 March 2020 - 10:58 AM

TV 55mm Plossl gives lowest magnification with sny scope.

 

I also have the Empress of eyepieces, a 31mm Celestron Axiom LX 82°. Equally as good as its Nagler rival.

Hmmmm, TV 55mm Plossl, have never seen one. Sounds pretty interesting. 



#390 nicknacknock

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Posted 24 March 2020 - 11:20 AM

You get maximum TFOV and a large exit pupil, but you sacrifice AFOV and the space walk feeling.
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#391 imtl

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Posted 24 March 2020 - 02:36 PM

You get maximum TFOV and a large exit pupil, but you sacrifice AFOV and the space walk feeling.

Nick,

I think this is not exactly correct. The TFOV with a Pan 41mm is basically equal or even slightly bigger in all scopes. The 55mm plossl in the NP101 will give an exit pupil of 9.8mm! You need a cat's pupil to take advantage of that. The 41mm Pan is 7.6mm exit pupil and that is really really big for 95% of people. With the TV 85 the 55mm plossl exit pupil is 7.6mm with the 55mm plossl and with the pan 41mm. Which is fine as a wide field finder ep.

 

The 55mm does weigh a lot less that is for sure.


Edited by imtl, 24 March 2020 - 02:49 PM.

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#392 nicknacknock

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Posted 24 March 2020 - 03:42 PM

Both Pan 41 and Plossl 55 have the same field stop, ergo the same TFOV. I would use neither for this scope as the Plossl 55 indeed gives a larger that wanted exit pupil and the Pan 41 is on the - ahem - portly side.

An alternative to the Pan 41 at / near that focal length would be the Vixen LVW 42. As a “finder” eyepiece it would work great.
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#393 Blueox4

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Posted 24 March 2020 - 04:09 PM

My NP101. I regretted selling my SDF almost immediately after I sold it and recently picked up this beautiful, like new NP101. Came with all the original accessories, case, diagonal, mounting ring, etc. 

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#394 imtl

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Posted 24 March 2020 - 04:17 PM

What's the serial number on this one?



#395 nicknacknock

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Posted 24 March 2020 - 11:12 PM

My NP101. I regretted selling my SDF almost immediately after I sold it and recently picked up this beautiful, like new NP101. Came with all the original accessories, case, diagonal, mounting ring, etc. 

Can the DSV-M really handle that scope? I have one but never tried it with a 4” scope!



#396 MarkGregory

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Posted 28 March 2020 - 08:59 AM

I figured recently I had too many small scopes to do them justice. So I set up a week long show down to determine which one I was going to sell. My idea back fired, as I had so much fun using them both over those nights that I figured I couldn't part with either of them after that. So I made the decision not to make a decision and just hang on to them both.

 

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Curious to know what mount/tripod setup you are using on your scope on the right side of the photo. Thanks, Mark



#397 Compressorguy

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Posted 01 April 2020 - 11:47 AM

Installed a Televue Focusmate on my new to me Genesis. Feels very smooth and at 6:1 should make focusing the f/5 even more precise at higher powers. Now if I could just get a clear night to try it out.

 

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#398 Compressorguy

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Posted 01 April 2020 - 11:52 AM

Did have to move the scope forward in the clamshell about 3/4” to rebalance the scope as the new focuser has quite a bit of heft. This will give you an idea of its size. It’s definitely solid!

 

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#399 MarkGregory

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Posted 01 April 2020 - 03:08 PM

Bought this nice Renaissance tripod Panoramic tripod and mount.

I noticed you have no tray between the tripod legs. Do you find that not having a tray makes the tripod easier for moving? Setting up? Viewing?  Thinking of taking my tray off of my Televue Panoramic Mount. Thanks, Mark



#400 m9x18

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Posted 01 April 2020 - 04:59 PM

Installed a Televue Focusmate on my new to me Genesis. Feels very smooth and at 6:1 should make focusing the f/5 even more precise at higher powers. Now if I could just get a clear night to try it out.

 

attachicon.gif73256E05-CCB4-48E7-A8ED-0E7AD18B7865.jpeg

Ever notice how many electronic devices include the caveat, "Batteries Not Included"?

Perhaps telescopes and their accessories should come with the warning, "Clear Skies Not Included."   ; )

But seriously, very useful addition to an already sweet scope. Looks very nice on that beautiful Genesis.


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