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10" f9 APO

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#1 39.1N84.5W

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Posted 22 November 2021 - 08:00 AM

Ok Jeff B... let's see those pictures! :)
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#2 Kent10

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Posted 22 November 2021 - 10:36 AM

I have been waiting too and wow would I like to have a view.  I was just thinking about this yesterday as I viewed through my 8" F8 APO.



#3 Jeff B

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Posted 22 November 2021 - 08:34 PM

Gents, sorry, but things were delayed.

 

Jeff


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#4 39.1N84.5W

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Posted 22 November 2021 - 09:11 PM

Well we await with triplet-coated breath. Happy Thanksgiving buddy!

#5 Scott Beith

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Posted 23 November 2021 - 10:02 AM

Gents, sorry, but things were delayed.

 

Jeff

The wait will be worth it.  Congrats sir!



#6 CHASLX200

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Posted 23 November 2021 - 07:11 PM

Not sure i wanna know how much it cost. Maybe 48k?



#7 StarAlert

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Posted 23 November 2021 - 11:28 PM

Not sure i wanna know how much it cost. Maybe 48k?

TEC 250VT



#8 CHASLX200

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Posted 24 November 2021 - 06:42 AM

Not far off. Now add 20k for a mount and i am in bizz. Be a killer in my seeing at 800x. Not a OTA many can mount up alone.


Edited by CHASLX200, 24 November 2021 - 07:17 AM.


#9 StarAlert

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Posted 24 November 2021 - 08:47 AM

Not far off. Now add 20k for a mount and i am in bizz. Be a killer in my seeing at 800x. Not a OTA many can mount up alone.

Just 800x? This beauty would easily do twice that for you. 


Edited by StarAlert, 24 November 2021 - 10:59 AM.


#10 Jeff B

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Posted 24 November 2021 - 10:49 AM

Not far off. Now add 20k for a mount and i am in bizz. Be a killer in my seeing at 800x. Not a OTA many can mount up alone.

Now, now Chas, that's for a new mount.  My used AP 1200 (~$6500) and, especially, my used but just refurbished Mathis MI-500 (~$9000) will both handle it just fine.  

 

LOL, there is NO WAY I would ever recommend, suggest, hint at, think about, consider, explore, or any other number of applicable of semi-applicable action verbs, only one person mounting such a heavy, and nose heavy to boot, OTA on to the mount. 

 

Delivery perhaps in late spring, early summer so I have time to complete my observatory, and wreck my body swapping out mounts.  

 

I'll have to suffer along for a while longer with an 8" APO.  "Oh, the pain!  The pain!"

 

Jeff


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#11 peleuba

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Posted 24 November 2021 - 11:00 AM

I'll have to suffer along for a while longer with an 8" APO.  "Oh, the pain!  The pain!"

 

I, for one, am giving thanks this year that you will, for not very much longer, have to slum-around with a horribly smooth and disgustingly well corrected 8" APO.

 

lol.gif


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#12 weis14

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Posted 24 November 2021 - 11:14 AM

Now, now Chas, that's for a new mount.  My used AP 1200 (~$6500) and, especially, my used but just refurbished Mathis MI-500 (~$9000) will both handle it just fine.  

 

LOL, there is NO WAY I would ever recommend, suggest, hint at, think about, consider, explore, or any other number of applicable of semi-applicable action verbs, only one person mounting such a heavy, and nose heavy to boot, OTA on to the mount. 

 

Delivery perhaps in late spring, early summer so I have time to complete my observatory, and wreck my body swapping out mounts.  

 

I'll have to suffer along for a while longer with an 8" APO.  "Oh, the pain!  The pain!"

Jeff -

 

I'd be glad to come down to Ohio to help mount that beast if needed.  The price would be just be a few looks through it on a clear, moonless night.

 

A dream scope for sure!



#13 t.r.

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Posted 24 November 2021 - 11:36 AM

OHIO?!?! That is quite a scope for NE skies if yours are anything like mine in Upstate NY! You live in some sort of Nexus over there Jeff?! Do you find that you can even push the 8” to its limits in typical seeing?

Edited by t.r., 24 November 2021 - 11:37 AM.

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#14 CHASLX200

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Posted 24 November 2021 - 07:03 PM

Now, now Chas, that's for a new mount.  My used AP 1200 (~$6500) and, especially, my used but just refurbished Mathis MI-500 (~$9000) will both handle it just fine.  

 

LOL, there is NO WAY I would ever recommend, suggest, hint at, think about, consider, explore, or any other number of applicable of semi-applicable action verbs, only one person mounting such a heavy, and nose heavy to boot, OTA on to the mount. 

 

Delivery perhaps in late spring, early summer so I have time to complete my observatory, and wreck my body swapping out mounts.  

 

I'll have to suffer along for a while longer with an 8" APO.  "Oh, the pain!  The pain!"

 

Jeff

I was thinking you will need a AP3600 or maybe a 1600 would do it.  I am not sure if the 1200 will cut it or not.



#15 firemachine69

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Posted 24 November 2021 - 07:08 PM

I was thinking you will need a AP3600 or maybe a 1600 would do it. I am not sure if the 1200 will cut it or not.



1200 should be fine for visual.
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#16 Jeff B

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Posted 24 November 2021 - 08:34 PM

I was thinking you will need a AP3600 or maybe a 1600 would do it.  I am not sure if the 1200 will cut it or not.

No problem Chas.  Here is the one we have in our Parks District Observatory throwing around a ninety pound 8.7" F12 achromat.  No issues with the weight and moment arm.  Goto's are dead on and we can easily focus at high power with little to no vibration.

 

IMO, these older mounts can have an advantage over the newer mount for visual use with these types of scope as the worms on the older mounts are not spring loaded like the newer units.   Spring loaded worm drives, while fantastic and necessary for very precise AP, can display a little bit of a "bouncy" quality when perturbed because of the worm spring.  Well adjusted older units like the 900 and 1200 IME don't display much of that and are subjectively very stable with low damping times.

 

Jeff

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#17 CHASLX200

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Posted 25 November 2021 - 07:07 AM

I have sure tried to find a pre GO-TO 1200 for years and no luck.



#18 Illinois

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Posted 25 November 2021 - 08:04 AM

I wonder about 10 inch f9 APO vs Celestron C11 f10 hd edge for planetary and deep sky objects? I bet not much different view but price and weight would be big difference! For me is C11 edge and save money and space! 



#19 CHASLX200

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Posted 25 November 2021 - 08:09 AM

Only a freaky sharp C11 would come close. So the chances of getting one are gonna be super hard. But a well made 10" F/8 Newt with a super well made mirror can come close and cost 50k less or more. Size is getting big for a 10" slow EQ mounted Newt but not as heavy as a 10" APO.  



#20 39.1N84.5W

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Posted 25 November 2021 - 08:24 AM

Don't want one? Don't buy one.
I started this thread to celebrate a friend's dream telescope đź”­. Life is short! Jeff built my 8" refractor, studied astrophysics with Neil Armstrong, and is a very giving person to Ohio amateur astronomy. I'm lucky to have met him and I'm real lucky I will get to look through this TEC when it arrives.
Maybe y'all could throw shade in another forum?
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#21 CHASLX200

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Posted 25 November 2021 - 08:28 AM

I think anyone would want a 10" APO. That would be the total dream scope for all of us and i could put it to 100% use in my super steady seeing. 


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#22 StarAlert

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Posted 25 November 2021 - 09:13 AM

I wonder about 10 inch f9 APO vs Celestron C11 f10 hd edge for planetary and deep sky objects? I bet not much different view but price and weight would be big difference! For me is C11 edge and save money and space!


Sometimes it just isn’t about saving money. Why can’t people understand that? No one reading this thread cares that you would pick a C11 over a 10” APO. And this is in the refractor forum, to boot!

I ordered a CFF180 recently and would upgrade to the CFF230 under the right circumstances. An SCT isn’t even a consideration for me.

Looking forward to seeing pictures of the 10” mounted and ready for action.


Edited by StarAlert, 25 November 2021 - 11:04 AM.

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#23 John Fitzgerald

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Posted 25 November 2021 - 09:45 AM

Wow, that's awesome!   You could see every double star in the STF catalog, plus great views of the planets.


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#24 Bomber Bob

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Posted 25 November 2021 - 10:02 AM

Can't wait to see it all set up & in action!  

 

As for $$$$ per aperture...  Is my FC-100 really worth 3x the AT102ED it replaced?  For me, absolutely YES.  More belts & colors on Jupiter & Saturn -- can't wait to see what it can do with Mars!


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#25 CHASLX200

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Posted 25 November 2021 - 10:17 AM

Can't wait to see it all set up & in action!  

 

As for $$$$ per aperture...  Is my FC-100 really worth 3x the AT102ED it replaced?  For me, absolutely YES.  More belts & colors on Jupiter & Saturn -- can't wait to see what it can do with Mars!

Well my FS -102 sure was nice so expect some crazy images.


Edited by CHASLX200, 25 November 2021 - 10:17 AM.



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