Return to the Cloudy Nights Telescope Reviews home pageAstronomics discounts for Cloudy Nights members
· Get a Cloudy Nights T-Shirt · Submit a Review / Article

Click here if you are having trouble logging into the forums

Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu… uh, User

Equipment Discussions >> Classic Telescopes

Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | (show all)
starman876
Postmaster
*****

Reged: 04/28/08

Loc: VA
Re: Questar Opinion new [Re: RodgerHouTex]
      #5686156 - 02/17/13 11:06 PM

Now that is what I like. An abjective opinion that actually that I agree with. As good as they are I would never spend $6400 on one. I would buy a high quality refractor for $6400.

Post Extras: Print Post   Remind Me!   Notify Moderator  
strdst
Post Laureate
*****

Reged: 03/23/08

Loc: Oregon Territory
Re: Questar Opinion new [Re: sgorton99]
      #5686159 - 02/17/13 11:07 PM

Just had some enchanting Jupiter observing with my 90 mm equivalent of the Q 90, ETX 90, C-90... My Royal Astro (Sears 6345) 90mm x 1400mm. Set up time was a few seconds which gave me a few minutes of wow time before the freezing fog screamed in. In my hood it isn't aperture as much as freaking moisture way high or way low that controls the experience.

As I thought my Apo is still more expensive than that Questar. Hell my 90mm classic Achro is way more expensive than than that Questar.


Post Extras: Print Post   Remind Me!   Notify Moderator  
EJN
Carpal Tunnel
*****

Reged: 11/01/05

Loc: 53 miles west of Venus
Re: Questar Opinion new [Re: terraclarke]
      #5686197 - 02/17/13 11:37 PM

Quote:

I will never, ever in this lifetime or the next own a dobsonion telescope of any size, shape, color, or make. For those who do and will, fine for them. Not for me.




I started out in amateur astronomy in the late 60's. When I first saw pictures of
the San Francisco Sidewalk Astronomers Dobsonians in Sky & Telescope in 1973, I
thought it was some kind of a joke. Cardboard tubes? Plywood altazimuth mounts?
A "serious" scope was a Cave or a Unitron.

In 1976, I was at the Grand Canyon and the SFSA were set up there, 2 12" scopes, an
18", and the 24." It was clear that night, and when I climbed the ladder to look
through the 24" at M13 I nearly fell off the ladder. To say the view was spectacular
is an understatement. So cardboard scopes with plywood mounts weren't snake oil
after all. Needless to say I became a huge proponent of the Dobsonian design.

But 37 years later, I'm not young anymore and value portability and quick
setup. But an 8" dob fits that bill perfectly.



Post Extras: Print Post   Remind Me!   Notify Moderator  
greedyshark
professor emeritus
*****

Reged: 10/31/05

Loc: 3rd Rock
Re: Questar Opinion [Re: EJN]
      #5686220 - 02/17/13 11:50 PM

Is this a great forum or what?!

Charles


Post Extras: Print Post   Remind Me!   Notify Moderator  
kansas skies
sage


Reged: 12/02/12

Loc: Kansas, USA
Re: Questar Opinion new [Re: EJN]
      #5686225 - 02/17/13 11:54 PM

Just a thought...

I don't know how many times I've seen computer gamers spend thousands on computers, only to give them away for pennies on the dollar a few short years later. Good for me, good for them (I guess), and good for the companies that build computers. Win, win, win, I guess. Of course, if the original buyer held out a little too long, the computers weren't even worth giving away.

That Questar, however, even though it looked like it spent the better part of its life at the bottom of a well, still brought close to its original purchase price.

I guess it's all just a matter of perspective...

Bill


Post Extras: Print Post   Remind Me!   Notify Moderator  
Datapanic
Post Laureate
*****

Reged: 10/17/09

Loc: Tucson, Arizona
Re: Questar Opinion new [Re: greedyshark]
      #5686226 - 02/17/13 11:54 PM

Quote:

Is this a great forum or what?!

Charles




I think so - we survived a Questar vs. Everything thread quite well, so far


Post Extras: Print Post   Remind Me!   Notify Moderator  
Joe Bergeron
Vendor - Space Art


Reged: 11/10/03

Loc: Upstate NY
Re: Questar Opinion new [Re: rmollise]
      #5686262 - 02/18/13 12:15 AM

Quote:

There is a lot of imagination, beginning with "resolution." The C5 will easily out resolve the Questar, good though the Questar's optics might be. That's optics, and there is no way around it. I'd suggest you're unclear about the definition of "resolution," which is a function of aperture.




I believe resolution is a function of aperture and optical quality. Your assumption is that the C5 is as well made as the Questar. That may not be the case. If aperture was the only consideration, I could resurrect some old 13.1" Coulter and have a cheap planetary telescope twice as good as my 6" refractor. Somehow I doubt it would work out that way.

As for image brightness…you appear to be assuming that the ETX has coatings equal to the Questar's on all surfaces. Maybe this is the the case. Maybe not.


Post Extras: Print Post   Remind Me!   Notify Moderator  
terraclarke
Post Laureate
*****

Reged: 05/29/12

Loc: Just South of the Mason-Dixon ...
Re: Questar Opinion new [Re: starman876]
      #5686518 - 02/18/13 07:45 AM



Post Extras: Print Post   Remind Me!   Notify Moderator  
terraclarke
Post Laureate
*****

Reged: 05/29/12

Loc: Just South of the Mason-Dixon ...
Re: Questar Opinion new [Re: Atl]
      #5686526 - 02/18/13 07:47 AM



Post Extras: Print Post   Remind Me!   Notify Moderator  
Mike E.
Carpal Tunnel


Reged: 01/26/10

Loc: Moonstone Observatory
Re: Questar Opinion new [Re: greedyshark]
      #5686530 - 02/18/13 07:49 AM

Quote:

Is this a great forum or what?!

Charles




Yes indeed, and Questar threads brighten my day.


Post Extras: Print Post   Remind Me!   Notify Moderator  
Mike E.
Carpal Tunnel


Reged: 01/26/10

Loc: Moonstone Observatory
Re: Questar Opinion new [Re: Atl]
      #5686542 - 02/18/13 07:57 AM Attachment (6 downloads)

Quote:

Vindication involves facts...not opinion. If I think looking through a toilet paper tube is better than a Questar then it is for me. As for me less than an 6" scope of any brand or sort is basically a waste of time.




For those who have evolved beyond toilet tubes, or prefer more aperture, Questar has a 7" solution.


Post Extras: Print Post   Remind Me!   Notify Moderator  
starman876
Postmaster
*****

Reged: 04/28/08

Loc: VA
Re: Questar Opinion new [Re: Mike E.]
      #5686688 - 02/18/13 09:48 AM

Yes, this is a great forum as long as we keep our opinions related to the equipment and not to the person making them

Post Extras: Print Post   Remind Me!   Notify Moderator  
starman876
Postmaster
*****

Reged: 04/28/08

Loc: VA
Re: Questar Opinion new [Re: starman876]
      #5686696 - 02/18/13 09:55 AM

Look at the 10" mak that Astro Physics made a few of. That scope is so good that people stand in line for a chance to buy it at almost any price. Once again it is not about aperture ruling the day. It is about the quality of the optics and the build of the equipment. As long as I can afford excellent optics that is what I am going to buy. The other scopes that have been mentioned are good scopes and do provide the best bang of the money being spent. Not to go off subject. I tell people it does now matter in what kind of car you get from point a to point b, if it gets you there you love the car. scopes are the same way. As long as you can see a decent image you love it and that is what matters.

Post Extras: Print Post   Remind Me!   Notify Moderator  
kansas skies
sage


Reged: 12/02/12

Loc: Kansas, USA
Re: Questar Opinion new [Re: starman876]
      #5686754 - 02/18/13 10:31 AM

The great violinist Isaac Stern once commented on the multi-million dollar violins made by the old masters that the importance of the violin is not so much how it sounds to the audience, but in how the violinist responds to the violin.

Bill


Post Extras: Print Post   Remind Me!   Notify Moderator  
starman876
Postmaster
*****

Reged: 04/28/08

Loc: VA
Re: Questar Opinion new [Re: Mike E.]
      #5686758 - 02/18/13 10:34 AM

That is one beautiful scope and also has been debated to death being compared to other scopes of similar aperture.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Joe Cepleur
Carpal Tunnel


Reged: 03/18/10

Loc: Dark North Woods
Re: Questar Opinion new [Re: kansas skies]
      #5686820 - 02/18/13 11:25 AM

Quote:

The great violinist Isaac Stern once commented on the multi-million dollar violins made by the old masters that the importance of the violin is not so much how it sounds to the audience, but in how the violinist responds to the violin.




Hadn't heard that one from Stern, but I know it's true. Continuing the analogy with telescopes, there is a double-pass, auto-collimation test for violins. The same musician will play many violins behind a screen, so the jurors can not see which is being heard. This has proven beyond doubt that many modern violins of comparatively low cost sound as well or better than the old masters. Many people refuse to believe this, in violins as in telescopes.

I'd rather view through an okay telescope with someone who is a real master of the skies than through the finest scope with someone who knows nothing. A C90 pointed at the planets or the Orion Nebula surely shows more than a Questar pointed at nothing. Silly comment, I suppose, because only connoisseurs buy Questars.

With apologies for having lost the link, I once read that there were quality control issues with the ETX90. If that source were correct, good ones were as good as claimed, but many were terrible. Looking at the C90's passage from Torrence to Japan to Taiwan and then China, there are likely a variety of qualities with those also. There may be lesser Questars, but likely fewer of them. Taken together, a mass of mediocre low-cost scopes amidst a rare and typically excellent exotic could create the impression that magic rules, not physics. Truth is likely that, optically, a good ETX90 or C90 is a lot like a Questar, but finding a good Questar is a lot less of a roll of the dice.

This would not explain DaveG's experience testing the ETX versus the Questar, but he may have been lucky with his selection of ETXs. Put it this way: If Questar were to machine ETXs and C90s to their standards, and choose their optics with equal care, those Questar-ETXs and Questar-C90s would be the equal of real-world Questars on the double-pass, auto-collimation stand. The physics says so. The main difference in real-world Questars is the quality of the build, and its consistency... not to mention the jewel-like quality that makes so many of us want one!


Post Extras: Print Post   Remind Me!   Notify Moderator  
ColoHank
Carpal Tunnel
*****

Reged: 06/07/07

Loc: western Colorado
Re: Questar Opinion new [Re: kansas skies]
      #5686965 - 02/18/13 12:52 PM

Quote:

The great violinist Isaac Stern once commented on the multi-million dollar violins made by the old masters that the importance of the violin is not so much how it sounds to the audience, but in how the violinist responds to the violin.






There's a reason those rare violins command such high prices: rarity and unfailing quality of tone. While it's true that any of the few great solo violinists at the top of their professions could probably squeeze commendable performance out of a lesser instrument, they choose not to. Name one of them who doesn't play a world-class fiddle.

My father was privileged for a few years to play a borrowed Guarneri Del Jesu (the de Beriot, 1744), one of the fifteen premier instruments which was compared in the Glory of Cremona study and featured on the recording. He could certainly tell the difference between it and the instruments he otherwise owned and played, and so could those who heard it in concert. He also had recurring nightmares about losing it in strange places while on tour.

Edited by ColoHank (02/18/13 02:36 PM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
kansas skies
sage


Reged: 12/02/12

Loc: Kansas, USA
Re: Questar Opinion new [Re: Joe Cepleur]
      #5687014 - 02/18/13 02:19 PM

Here is a Link to a website that contains mp3 files of the program I was referring to if you're interested. They're from a BBC program where various violins were compared in a blind test.

Bill


Post Extras: Print Post   Remind Me!   Notify Moderator  
starman876
Postmaster
*****

Reged: 04/28/08

Loc: VA
Re: Questar Opinion new [Re: kansas skies]
      #5687053 - 02/18/13 02:43 PM

http://www.princeton.edu/~rvdb/images/Questar/

there pics were taken by a 3.5 inch questar. I think I can rest my case.


Post Extras: Print Post   Remind Me!   Notify Moderator  
kansas skies
sage


Reged: 12/02/12

Loc: Kansas, USA
Re: Questar Opinion new [Re: ColoHank]
      #5687101 - 02/18/13 03:06 PM

Quote:

My father was privileged for a few years to play a borrowed Guarneri Del Jesu (the de Beriot, 1744), one of the fifteen premier instruments which was compared in the Glory of Cremona study and featured on the recording. He could certainly tell the difference between it and the instruments he otherwise owned and played, and so could those who heard it in concert. He also had recurring nightmares about losing it in strange places while on tour.




I can't even imagine the responsibility that would go along with something of that magnitude. I can say that I've only been privileged on one occasion to hear an original Stradivarius in concert. It truly was a magical performance.

Bill


Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | (show all)


Extra information
11 registered and 25 anonymous users are browsing this forum.

Moderator:  Rich (RLTYS), Brian Risley 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled


Thread views: 7044

Jump to

CN Forums Home


Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics