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 >> Refractors

Pages: 1 | 2 | 3 | 4 | (show all)
Stellarfire
Pooh-Bah


Reged: 07/10/11

Loc: Switzerland
Re: TEC 200 new [Re: M13 Observer]
      #5543266 - 11/28/12 03:32 AM

Quote:

I can't even imagine how I would go about handling such a beast!




Considering the dimensions of the TEC APO 200, it is surprisingly light. According the 2006 Owner's Manual, the OTA net weights are as following:
ED f/9 = 50lb / 23kg
FL f/8 = 45lb / 20kg

Anyway, for safe handling of that mighty OTA, a pair of Scope Totes would be a highly recommended accessory.

Stephan


Post Extras: Print Post   Remind Me!   Notify Moderator  
mark8888
Carpal Tunnel


Reged: 09/24/10

Re: TEC 200 new [Re: Stellarfire]
      #5543270 - 11/28/12 04:14 AM

Here's the best pic I've seen which compares the sizes of the various TECs. Sometimes in pictures it's difficult to know what you're looking at because of the angle, but this one is reeeally clear.
http://www.unitronitalia.com/prodotti/TE-00-yuri.jpg


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

Reged: 10/05/08

Loc: Bornholm, Denmark
Re: TEC 200 new [Re: mark8888]
      #5543280 - 11/28/12 04:58 AM

There is surprisingly little difference between the TEC 140 and the TEC 180. And the TEC 140 is quite a small telescope, physically, IMO. A Sky-Wathcer 150mm f/8 achro is a bit larger, in fact, to put things into a more common perspective.


Clear skies!
Thomas, Denmark


Post Extras: Print Post   Remind Me!   Notify Moderator  
Max Lattanzi
professor emeritus


Reged: 06/27/07

Re: TEC 200 new [Re: mark8888]
      #5543302 - 11/28/12 05:51 AM Attachment (44 downloads)

Quote:

Here's the best pic I've seen which compares the sizes of the various TECs. Sometimes in pictures it's difficult to know what you're looking at because of the angle, but this one is reeeally clear.
http://www.unitronitalia.com/prodotti/TE-00-yuri.jpg




And, to put things in perspective, this is 'the kid' nearby 'the father'...

Cheers,
-- Max


Post Extras: Print Post   Remind Me!   Notify Moderator  
snommisbor
scholastic sledgehammer
*****

Reged: 06/15/09

Loc: Cedar Park, TX
Re: TEC 200 new [Re: Max Lattanzi]
      #5543519 - 11/28/12 10:01 AM

The TEC 200 makes that FT focuser look so small compared to the other scopes.

Post Extras: Print Post   Remind Me!   Notify Moderator  
M13 Observer
scholastic sledgehammer


Reged: 12/09/06

Re: TEC 200 new [Re: Daniel Mounsey]
      #5543799 - 11/28/12 12:38 PM

Quote:

The TEC200 is an astonishing 20 lbs. lighter than this 8" TMB at least.




At this size, they each have exceeded what I would personally call "portable". They are each a wonder to behold. On the other hand, had I a permanent observatory in a dark site . . . I can only dream of such. Which one performs best or is this the TMB with cell issues?


Post Extras: Print Post   Remind Me!   Notify Moderator  
Scott99
Carpal Tunnel
*****

Reged: 05/10/07

Loc: New England
Re: TEC 200 new [Re: mark8888]
      #5543810 - 11/28/12 12:42 PM

Quote:

Here's the best pic I've seen which compares the sizes of the various TECs. Sometimes in pictures it's difficult to know what you're looking at because of the angle, but this one is reeeally clear.
http://www.unitronitalia.com/prodotti/TE-00-yuri.jpg




what a great picture! They should sell posters

Really I feel lucky to have a 6.3 inch refractor that is under 30 pounds and easy to handle. Compared to historic 6 inch refractors, that is a miraculous feat.

When you start to look at the 7 and 8 inchers....wow. magical machines for sure. Incredible amount of performance packed into a small package. You used to need an entire observatory building to use a 7 or 8 inch refractor!


Post Extras: Print Post   Remind Me!   Notify Moderator  
M13 Observer
scholastic sledgehammer


Reged: 12/09/06

Re: TEC 200 new [Re: Astrojensen]
      #5544144 - 11/28/12 04:03 PM

Quote:

There is surprisingly little difference between the TEC 140 and the TEC 180. And the TEC 140 is quite a small telescope, physically, IMO. A Sky-Wathcer 150mm f/8 achro is a bit larger, in fact, to put things into a more common perspective.


Clear skies!
Thomas, Denmark




Well, maybe. I find that while it appears like there is only a small difference on paper, and even when the OTA's are lying side by side, there is actually quite a considerable difference in the handling of OTA's as one progresses through the sequence of, SOB (some other brand) from 105mm through 180mm. For one thing, it is not just the OTA but attached accessories as well. I double ring with my 155 and 180, and the second set of rings with attached dovetail saddle plate must be on the tube before it is placed into the primary rings on the mount, similar to how Mike works it with his 200. That really starts adding a lot of cumbersome weight.


Post Extras: Print Post   Remind Me!   Notify Moderator  
Stellarfire
Pooh-Bah


Reged: 07/10/11

Loc: Switzerland
Re: TEC 200 new [Re: M13 Observer]
      #5544352 - 11/28/12 06:29 PM

Quote:

Which one performs best or is this the TMB with cell issues?





As far as I know, TEC offered the giant 200 APO in three versions: the ED f/9 and two Fluorite versions at f/7 and f/8. Production of the 200 has ceased and total production number is quite small, resulting in little user data available.
Considering such a large aperture with its heavy lens elements, combined with a focal ratio as fast as f/7, one automatically thinks on the reliability of the lens cell construction. But despite the surprisingly light OTA weight of the TEC 200, it is not renowed for lens cell issues.
Yuri knows his job.

Stephan


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

Reged: 04/01/08

Loc: Lovettsville, VA
Re: TEC 200 new [Re: Stellarfire]
      #5544428 - 11/28/12 07:29 PM

The TMB scope with the lens cell issues is the 180ED f/9.

The TECs have no such issues.

JimC


Post Extras: Print Post   Remind Me!   Notify Moderator  
suburbanskies
sage
*****

Reged: 12/18/04

Loc: New Jersey, USA
Re: TEC 200 new [Re: Max Lattanzi]
      #5544524 - 11/28/12 08:50 PM

Quote:



And, to put things in perspective, this is 'the kid' nearby 'the father'...

Cheers,
-- Max




Ah, the son is taller than the father!


Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: 1 | 2 | 3 | 4 | (show all)


Extra information
9 registered and 21 anonymous users are browsing this forum.

Moderator:  Scott in NC, FirstSight, panhard, star drop 

Print Thread

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


Thread views: 7028

Jump to

CN Forums Home


Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics