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Equipment Discussions >> Cats & Casses

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clintwhitman
Caveman
*****

Reged: 01/01/07

Loc: CALI SoEasyACavemanCanSlewIt
Re: C14,versus a 10" apo... What will you do? new [Re: WadeH237]
      #5757383 - 03/26/13 01:43 AM

That's why Roland made the Pearl a 9" APO at F 10.6.


I have to live with this set up in our permanent observatory. While I have been known to be very happy when using friends TAK Mewlon 300 There are not any telescopes I have found that out perform it. My friends 10" F15 Zeiss will but it has not been setup in years now. Personally I guess you have no idea what a 9" AP can do until the seeing lets the scope cut loose and hold Mars or Saturn at 700 power for an hour or two. After this happens a few times, coupled with the resolution that the triplet produces a truck load of C-14s and a gun could not get this scope out of my observatory...
(aveman

Clint and Philo With the Pearl At CSPAMP VI Mnt Pinos


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rflinn68
Carpal Tunnel


Reged: 03/09/12

Loc: Arkansas
Re: C14,versus a 10" apo... What will you do? new [Re: clintwhitman]
      #5758166 - 03/26/13 12:46 PM

This is really silly. Have you looked at the price of a 10" apo??!!! Take the apo and sell it and buy ten C14's if you want to! I really do love apo's, sct's, and newts, but for equal amount of money spent on each type you cant beat the view you'll get with the newtonian.

So me, I'd take the apo and sell it. Then I would buy a 6" apo, C14 EdgeHD, C8 EdgeHD, 12.5" Teeter/Zambuto Planet Killer, AND a Teeter/Lightholder 20" f/3.5 decked out with a motor drive. You'd still have money left over for a very nice mount for the refractor and SCT's. $50,000 can still buy a lot


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Ed Holland
Carpal Tunnel


Reged: 06/16/10

Loc: San Jose, CA and Oxford, UK
Re: C14,versus a 10" apo... What will you do? [Re: rflinn68]
      #5758512 - 03/26/13 03:47 PM

Probably a waste of time for me to take either option... I want ease & rapidity of setup as a priority, then ease of storage. I'd take the C14, and donate it to the local school.

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Eddgie
Postmaster
*****

Reged: 02/01/06

Re: C14,versus a 10" apo... What will you do? new [Re: azure1961p]
      #5760168 - 03/27/13 12:36 PM

Why didn't you include something like a Go-To 12" f/5 dob with Zambuto mirrors?

That would be my choice over these other two.

In fact, it is my choice. I have been wanting one for two years now.

Reflectors rule.


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JJK
Carpal Tunnel


Reged: 04/28/08

Re: C14,versus a 10" apo... What will you do? new [Re: clintwhitman]
      #5761654 - 03/28/13 01:26 AM

10" apo.

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rathbaster
scholastic sledgehammer
*****

Reged: 03/21/08

Loc: East Bridgewater, MA
Re: C14,versus a 10" apo... What will you do? new [Re: Erik Bakker]
      #5761868 - 03/28/13 07:51 AM

I'd go with the C-14

Since it's "free" I would have it custom painted white with a blue back and highlights. That way when its sitting in storage it looks like R2-D2.


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cavefrog
Carpal Tunnel
*****

Reged: 11/11/08

Loc: loozyanna
Re: C14,versus a 10" apo... What will you do? new [Re: rathbaster]
      #5762699 - 03/28/13 04:44 PM

You just gave me an excellent idea for a storage dust cover!

Thanks,
Theo


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DaemonGPF
Redonkulous
*****

Reged: 03/22/08

Loc: Aurora Colorado
Re: C14,versus a 10" apo... What will you do? new [Re: BKBrown]
      #5763285 - 03/28/13 10:09 PM

Quote:

If I'm not picking up the tab, the 10" Apo...the APM/LZOS 254mm f/9 is my "dream" scope". But at 42,773 euros ($55,177 US) it is unattainable by mere mortals. Not only the cost of the scope, but you'll spend a hefty percentage of that price getting a first rate mount and accessories; and of course it cries out for an observatory. So even if you got the scope free, you'll be dropping 50k for other stuff. At least I could use my TEC 140 as a wide field finder

Clear Skies,
Brian





Pfft... CLEARLY a grab-n-go type of instrument for small, wild star parties with lots of little kids running around loaded up on sugar.



Seriously though, I was pondering this as I started to read the thread. Then I tried to visualize a 10" APO. Now that I've seen this pic the first thing that popped in my mind was "Holy ____, that is rediculous!" I would just love one peep through that sucker, but I'd have the fear of god in me owning one.


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Fomalhaut
scholastic sledgehammer


Reged: 08/16/08

Loc: Switzerland
Re: C14,versus a 10" apo... What will you do? new [Re: DaemonGPF]
      #5763601 - 03/29/13 03:46 AM

What I will do?

Based on cost-efficiency-ratio, and if I were not a rich institution, I would certainly never buy an apo > 6 inches. And without permanent mount plus housing, not even an apo > 5 inches.

Question from my side: Are modern C14s ventilated nowadays? And has QC been substantially improved compared to yesterday?
=> If not, I wouldn't either ever buy a C14, be it EDG or SCF (strongly curved field), thank you.

Chris

Edited by Fomalhaut (03/30/13 10:39 AM)


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nytecam
Postmaster


Reged: 08/20/05

Loc: London UK
Re: C14,versus a 10" apo... What will you do? new [Re: bilgebay]
      #5763682 - 03/29/13 05:49 AM

Quote:

I would get the 10" APO and sell it. Then I would invest the money on a remote observatory and all the equipment needed for that.


Hopefully the gifts would contain the proviso of being used not sold for profit

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cavefrog
Carpal Tunnel
*****

Reged: 11/11/08

Loc: loozyanna
Re: C14,versus a 10" apo... What will you do? new [Re: nytecam]
      #5765818 - 03/29/13 09:51 PM

I got to admit, to be given to me? that's not a choice and I wouldn't sell it to buy something else either. Imagine the prestige!

I'll take the APO please!

Theo


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RocketScientist
super member


Reged: 08/28/08

Loc: California (East Bay area)
Re: C14,versus a 10" apo... What will you do? new [Re: DaemonGPF]
      #5774525 - 04/03/13 12:24 AM

Quote:

Seriously though, I was pondering this as I started to read the thread. Then I tried to visualize a 10" APO. Now that I've seen this pic the first thing that popped in my mind was "Holy ____, that is rediculous!"




I had unlimited access to a 9" refractor (not an apo) when I was in college. The school had a small observatory built into the roof of the astronomy department building. That 9" was crazy big, and it didn't have computer drives. You have to muscle the thing around, pick up a large stepladder and move it near the eyepiece, etc. And of course you had to push two electric buttons to rotate the dome, and climb up on the ladder to hand-crank the dome slit open and shut.

I had a lot of fun with it, but it was not practical and I can't imagine owning anything like that even if cost was no object. You would see more with less money and hassle by using something like a 16-18" high-quality Dob.

On the other hand, for those refractor owners who think that only those silly Big Dob owners need ladders...


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stanislas-jean
Carpal Tunnel


Reged: 10/22/08

Re: C14,versus a 10" apo... What will you do? new [Re: Erik Bakker]
      #5774802 - 04/03/13 07:49 AM

Nice refractor.
The 10" apo will blow visually mostly the C14 by the stability of the images at the eyepiece.
Because we are speaking about visual observation.
Over a year period this is sure that the apo will involve a better efficientcy brought by the elevation of the optics and the one way light into the tube.
Mostly this could be 2 step better seeing than the sct.
Apart the respective costs.
Stanislas-Jean


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Traveler
Pooh-Bah


Reged: 08/19/07

Loc: The Netherlands
Re: C14,versus a 10" apo... What will you do? new [Re: Erik Bakker]
      #5778926 - 04/05/13 02:24 AM

Hi Erik,

Is that a picture of the Kapteyn observatory at Roden (The Netherlands)? Very nice!
The last time i was there (for an ICT Training), there was "only" a 16" Dob in the huge dome...


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Astro4.3
super member


Reged: 11/06/04

Loc: So-Cal, High Desert
Re: C14,versus a 10" apo... What will you do? new [Re: Traveler]
      #5799460 - 04/14/13 09:16 PM

Clint's living the dream!!! Awesome scope man!

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Ed Wiley
scholastic sledgehammer


Reged: 05/18/05

Loc: Kansas, USA
Re: C14,versus a 10" apo... What will you do? new [Re: Erik Bakker]
      #5799507 - 04/14/13 09:45 PM

C14 versus 10" Apo? I would rather begin by thinking what I could buy for the same price I would pay for a 10" Apo.

Ed


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Erik Bakker
Post Laureate
*****

Reged: 08/10/06

Loc: The Netherlands, Europe
Re: C14,versus a 10" apo... What will you do? new [Re: Traveler]
      #5799809 - 04/15/13 02:07 AM

Quote:

Hi Erik,

Is that a picture of the Kapteyn observatory at Roden (The Netherlands)? Very nice!
The last time i was there (for an ICT Training), there was "only" a 16" Dob in the huge dome...




No. This is the Leiden Observatory.


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