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TEC Mak Casses in auction

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#1 photoracer18

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Posted 19 September 2022 - 03:48 PM

How about those 2 TEC Maks Margorie is auctioning off over at Astro-Physics, 6" F12 and 8" F15.5. See AM.


Edited by photoracer18, 19 September 2022 - 03:49 PM.


#2 Cpk133

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Posted 19 September 2022 - 04:22 PM

5,100 reserve for an 8" mct ouch.  Im sure its good but it suffers a 27% obstruction.  At f15, its a one trick pony.  I sure would like to have a peek through it though.  Does it sell at a premium on top of premium due to the seller being none other?  



#3 luxo II

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Posted 20 September 2022 - 01:23 AM

It’s a once in a lifetime chance to acquire a unicorn. People who know what these are won’t hesitate.

These are the ultimate small scopes for the moon, planets, planetary nebulae and clusters and f/12 or f/15 is ideal. If you’re in a big city, visual or imaging these targets, these scopes are as good as it gets.

If I didn’t have my current 10” I’d leap at either or both. Might trade my two Russian 6” though.

Edited by luxo II, 20 September 2022 - 01:57 AM.

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#4 dweller25

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Posted 20 September 2022 - 01:57 AM

I suspect the eventual selling prices will be quite high bawling.gif


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#5 luxo II

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Posted 20 September 2022 - 01:59 AM

If you think that’s high … what did you spend on your wife’s diamond ring ?

Take a look at the price of a 130mm Zeiss APQ, or a LZOS 180mm triplet APO. That’s the kind of competition these are, optically and mechanically.

I’d take either of the TECs over a Questar 7” for that matter.

Edited by luxo II, 20 September 2022 - 02:35 AM.

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#6 RichD

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Posted 20 September 2022 - 02:02 AM

They are beautiful. The 6" is surprisingly light - only 4.3kg. I'd give that a good home.

 

I'll have to stick with my cheapo chinese mak. 


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#7 R Botero

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Posted 20 September 2022 - 05:06 AM

These are excellent telescopes (I have their BIG brother) and with the best provenance: owned and looked after by Roland Christen.

Roberto

#8 t.r.

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Posted 20 September 2022 - 06:24 AM

Does anyone know the msrp from TEC for the 8”?

#9 vahe

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Posted 20 September 2022 - 08:35 AM

Does anyone know the msrp from TEC for the 8”?

 

The base price for TEC MC 15.5 was $4900.00 in 2004, dovetail, finder brackets and finders all extra.

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#10 vahe

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Posted 20 September 2022 - 08:44 AM

The 6" F12 was introduced in 2001 priced at about $2K depending on the mirror substrates (Quartz, pyrex) , TEC initially produced 50 of these little Cats, a few years later I believe TEC offered several more, maybe 7 or 10, the very last one was auctioned recently by Yuri and it went for $3050.00.

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#11 Haydon

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Posted 20 September 2022 - 08:59 PM

I have one of the 6” ones.  Very nice and light, and behaves like an 80mm refractor on an alt-az mount in terms of  settling/vibration and ease of use.  In addition to moon and planets, it is my go to scope when I’m wanting to track airliners or there is an ISS pass.  It also frames the moon nicely with a full frame camera at prime focus.

Edit: grammar corrections


Edited by Haydon, 20 September 2022 - 09:01 PM.

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#12 Cpk133

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Posted 20 September 2022 - 09:31 PM

I have one of the 6” ones.  Very nice and light, and behaves like an 80mm refractor on an alt-az mount in terms of  settling/vibration and ease of use.  In addition to moon and planets, it is my go to scope when I’m wanting to track airliners or there is an ISS pass.  It also frames the moon nicely with a full frame camera at prime focus.

Edit: grammar corrections

I like your equipment list.


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#13 RichA

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Posted 20 September 2022 - 11:24 PM

If you think that’s high … what did you spend on your wife’s diamond ring ?

Take a look at the price of a 130mm Zeiss APQ, or a LZOS 180mm triplet APO. That’s the kind of competition these are, optically and mechanically.

I’d take either of the TECs over a Questar 7” for that matter.

I'd have to compare them. The one Q7 I had which had a guaranteed wavefront of 1/6th wave peak to valley also had the least scattered light of any telescope I've ever used.  Which is pretty decent for a mirrored instrument.


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#14 Dennissloan

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Posted 21 September 2022 - 08:58 AM

Spoke with Marj, the optical quality of both Mak scopes are one tenth wave peak to peak. They are Roland personal scopes!

#15 Bill Barlow

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Posted 21 September 2022 - 10:23 AM

I wonder why he is selling them? 
 

Bill



#16 t.r.

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Posted 21 September 2022 - 11:09 AM

Spoke with Marj, the optical quality of both Mak scopes are one tenth wave peak to peak. They are Roland personal scopes!

That’s funny…Roland’s personal telescopes were made by Yuri!? If you don’t see the humor in that…can’t help ya!! 🤣👍
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#17 Cpk133

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Posted 21 September 2022 - 11:35 AM

That’s funny…Roland’s personal telescopes were made by Yuri!? If you don’t see the humor in that…can’t help ya!!

Rumor has it (i just made it up) these were specially made in a game of one-upsmanship to see who could make the closest to perfect optic.  Are they binoviewer friendly?


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#18 vahe

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Posted 21 September 2022 - 12:28 PM

Rumor has it (i just made it up) these were specially made in a game of one-upsmanship to see who could make the closest to perfect optic.  Are they binoviewer friendly?

 

TEC used to claim 1/8 wave or better for all their optics, but never offered a test result. The German site Astro Foren tested one of TEC6 Maks a long time ago, that particular sample tested a little better than 1/10th wave.

.

And yes they are all bino friendly.

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Vahe


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#19 R Botero

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Posted 21 September 2022 - 12:52 PM

Roland has stated in the AP group he has too many scopes and Marj has told him to downsize. I suppose he doesn’t use them as much and would rather see them used. He holds TEC’s optics in very high regard and has always maintained it so.

Edited by R Botero, 21 September 2022 - 12:52 PM.

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#20 R Botero

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Posted 21 September 2022 - 01:01 PM

My 10” is 1/9 PV according to TEC:

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#21 RichA

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Posted 21 September 2022 - 06:28 PM

TEC used to claim 1/8 wave or better for all their optics, but never offered a test result. The German site Astro Foren tested one of TEC6 Maks a long time ago, that particular sample tested a little better than 1/10th wave.

.

And yes they are all bino friendly.

.

Vahe

This larger TEC tested nicely:

 

https://fidgor-ru.tr...&_x_tr_sch=http



#22 JohnH

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Posted 22 September 2022 - 01:27 PM

5,100 reserve for an 8" mct ouch.  Im sure its good but it suffers a 27% obstruction.  At f15, its a one trick pony.  I sure would like to have a peek through it though.  Does it sell at a premium on top of premium due to the seller being none other?  

I'm not sure how much difference between a 8" f15 w 27% CO and my 8" f/10 is with 31% is. You sacrifice FOV for a bit of extra contrast.


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#23 Cpk133

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Posted 22 September 2022 - 01:59 PM

I'm not sure how much difference between a 8" f15 w 27% CO and my 8" f/10 is with 31% is. You sacrifice FOV for a bit of extra contrast.

 

In terms of the effect of the central obstruction, i doubt anyone would notice the difference.  The figure and smoothness on the other hand....  



#24 Kevin Barker

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Posted 22 September 2022 - 03:19 PM

As an owner of 5 nice Maks including an 8 inch f15 Mak I would say the long focal length does make the scope quite specialized. You need really good air to get the best out of this type of telescope. Otherwise it is not that different to say a good 8 inch SCT.

 

Mine is an Intes Micro 815 which has 1/9th wave PV optics and a 24% obstruction. I have not used it much in recent years and tend to reach for an also rather nice 7 inch f-10 Mak. But in great seeing the scope when cooled does produce some great high contrast views. I plan on using this Mak in the next holiday break on Jupiter and Saturn etc I also have an f-10 Intes Micro 603 which I suspect would deliver very similar images to the 6 inch f-12 TEC. This is a scope I use a lot, the size and focal length makes the scope very useable.

 

The 3048 mm or thereabouts focal length is quite long.

 

I suspect the high price on the Christen scope is because they are no longer made. And also the great condition of this pair of Maksutovs.


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#25 luxo II

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Posted 23 September 2022 - 03:03 AM

I'm not sure how much difference between a 8" f15 w 27% CO and my 8" f/10 is with 31% is.

Having tried a side-by-side comparison between my 10” vs Intes-Micro M1008, in very good seeing and looking at Jupiter or Mars, the difference is subtle, but visible.

As often said, chasing marginal improvements comes at exponentially increasing cost. If you think these are expensive take a look at the prices of the nearest competition - LZOS refractors, listed on AM.

Edited by luxo II, 23 September 2022 - 03:08 AM.



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