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12" f7.5 APO binocular saw firstlight

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#1 Savio Fong

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Posted 11 August 2015 - 06:27 AM

It took a long long time, finally we setup the 12" f7.5 APO bino. 

 

I am sure late Thomas Back will be surprised serial #001 & 002 will be setup here, as binoculars. 

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#2 Savio Fong

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Posted 11 August 2015 - 06:28 AM

the objectives

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#3 Savio Fong

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Posted 11 August 2015 - 06:31 AM

setting up the dome & the mount. 

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#4 Savio Fong

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Posted 11 August 2015 - 06:32 AM

The seeing was bad last night, so we didn't push up to 1000x to watch the Saturn, but it's way better than the 8" APO already. 



#5 rolo

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Posted 11 August 2015 - 06:43 AM

Impressive! What will be the main purpose of this equipment, visual, imaging, comet hunting?



#6 Savio Fong

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Posted 11 August 2015 - 07:17 AM

Just private owned equipment, mainly for visual use, for planetary, lunar, deep sky, comet... unlikely for solar observation  :lol:


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#7 happylimpet

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Posted 11 August 2015 - 07:26 AM

What an incredible piece of equipment! Planetary views will be astonishing. Seems a shame to put it in a dome though, that will probably cause bad seeing.



#8 StarMike8SE

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Posted 11 August 2015 - 07:28 AM

Wow, I want one....lol



#9 Ravenous

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Posted 11 August 2015 - 07:29 AM

That is a REALLY nice mount and dome, too!  You could probably put a nice comfy chair under the eyepieces...

 

How are the eyepieces and various mirrors or prisms arranged?



#10 AlienRatDog

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Posted 11 August 2015 - 07:37 AM

Um, that just brought tears to my eyes...so beautiful...

#11 Ohan Smit

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Posted 11 August 2015 - 08:04 AM

the objectives

:bigshock:  :bigshock:  :bigshock:

 

That's really beautiful glass you have there sir.

 

WOW.



#12 BillP

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Posted 11 August 2015 - 08:40 AM

It took a long long time, finally we setup the 12" f7.5 APO bino. 

 

I am sure late Thomas Back will be surprised serial #001 & 002 will be setup here, as binoculars. 

 

Savio,

 

:bow:  :bow:



#13 Savio Fong

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Posted 11 August 2015 - 09:29 AM

What an incredible piece of equipment! Planetary views will be astonishing. Seems a shame to put it in a dome though, that will probably cause bad seeing.

 

it's fine. 

 

dome or sliding roof is more personal preference, there are pros and cons for either option. 

 

In our place, low latitude, by the sea side, very stable temperature over the night, dome isn't an issue especially for such size (5m) with wide shutter opening and refractor with objective 3m above the ground. 


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#14 doctordub

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Posted 11 August 2015 - 09:33 AM

:bow:  :bow:  :bow:  :bow:  :bow: 

:yay:   :yay:  :yay:

         :band:

CS

Jonathan



#15 Savio Fong

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Posted 11 August 2015 - 09:37 AM

That is a REALLY nice mount and dome, too!  You could probably put a nice comfy chair under the eyepieces...

 

How are the eyepieces and various mirrors or prisms arranged?

 

the mount is strong enough, one can hang a chair on it, hence the "eyepiece height" is fixed against the observer.  :lol:

 

I have 2 sets of full focal length TMB Supermonocentrics & aspheric ortho, and the owner need to get pairs of Ethos, may be pairs of OIII, Hb, UHC filter etc, binoculars does cost double on these accessories... 


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#16 Savio Fong

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Posted 11 August 2015 - 09:39 AM

 

the objectives

:bigshock:  :bigshock:  :bigshock:

 

That's really beautiful glass you have there sir.

 

WOW.

 

 

there is long stories associate with this scope, and dome also 



#17 Savio Fong

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Posted 11 August 2015 - 09:57 AM

a question come to my mind, should it be binoculars or binocular?

 

https://www.englishc...pic.php?t=62015

 

for example, I guess either cases (noun and adjective) are correct? 

 

304 F7.5 APO Binoculars

 

or 

 

304 F7.5 APO Binocular Telescope



#18 Ravenous

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Posted 11 August 2015 - 10:34 AM

Yes I think "Binoculars" as a noun sounds correct, because the thing has two oculars.  Whereas a "Bicycle" does have two wheels, but they are not mentioned in its name - it is one bicycle.

 

But hey, I'm only English - I think the word probably comes from Latin, which I don't speak at all!



#19 Derek Wong

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Posted 11 August 2015 - 10:50 AM

Wow, what a magnificent instrument, please tell us what happens when the seeing is better.

 

When you get a chance, could you show us the eyepiece end of the binocular telescope?

 

Also, how long does the scope take to cool in your weather?

 

Thanks,

 

Derek



#20 Ziggy943

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Posted 11 August 2015 - 01:33 PM

Fantastic telescope. Congratulations.



#21 vahe

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Posted 11 August 2015 - 02:08 PM

Wonder what would something like this cost.

 

Vahe



#22 raal

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Posted 11 August 2015 - 02:10 PM

Absolutely wonderful!!!



#23 junomike

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Posted 11 August 2015 - 02:16 PM

a question come to my mind, should it be binoculars or binocular?

 

https://www.englishc...pic.php?t=62015

 

for example, I guess either cases (noun and adjective) are correct? 

 

304 F7.5 APO Binoculars

 

or 

 

304 F7.5 APO Binocular Telescope

 

304mm F7.5 Binoscope!

 

Mike



#24 gts055

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Posted 11 August 2015 - 02:28 PM

Magnificent setup and location.  Fantastic for astronomy, and can with be used for daytime ship spotting :).  Lots of information and images about the setup is at http://www.astrocafe...php?f=12&t=2148  Wonderful engineering in the mount and dual eyepiece arrangement to get the binocular to work on an equatorial mount. Incredible work from all those involved.  Thanks for showing.  Mark


Edited by gts055, 11 August 2015 - 03:22 PM.

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#25 Astrojensen

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Posted 11 August 2015 - 02:55 PM

That is totally ridiculously awesome! It is a true dream setup. The site and observatory looks like a dream as well.

 

 

Clear skies!
Thomas, Denmark




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