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70" Telescope

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#1 nosmoke

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Posted 13 November 2019 - 03:21 PM

Anyone have any up-to-date information on the 70"er Mike Clements built a few years ago?  All I can find is quite dated (most recent is 2015) and I was wondering if he is still using it and what kind of imaging it produces. 

 

I understand he was going to tour the country as he apparently built it to be "portable".


Edited by nosmoke, 13 November 2019 - 03:22 PM.

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#2 Frisky

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Posted 13 November 2019 - 03:52 PM

Here's one of his 2019 videos:

 

https://www.youtube....h?v=zbA6_YRAXfM


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#3 nicoledoula

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Posted 13 November 2019 - 03:52 PM

No, but now that you mention it I bet it comes up for sale soon.  



#4 B 26354

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Posted 13 November 2019 - 04:06 PM

Could you possibly clarify why it is that you think that?


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#5 nosmoke

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Posted 13 November 2019 - 08:46 PM

OK, looks like he is still active with it.  One thing I wonder about this scope is how would he get a good image with that severely tilted secondary arrangement (angled so that it directs the path to the eyepiece down and to the outside of the structure)?  Some sort of aspheric surface?



#6 dave brock

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Posted 14 November 2019 - 01:50 AM

The secondary is flat so doesn't matter what angle it reflects as long as the focuser is pointing at it.
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#7 tommm

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Posted 14 November 2019 - 10:32 AM

There is an article on this scope in this month's Amateur Astronomy:

"In this issue, we feature the amazing 70” amateur telescope housed at the Salt Lake City Astronomy Association Stansbury Observatory complex. Robert Reeves details his visit to this remarkable facility and the details and construction of this large telescope."


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#8 mr70inch

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Posted 14 November 2019 - 10:57 AM

Mike Clements, here, the builder of the 70 inch telescope....The telescope is alive and well at the Stansbury Park Observatory Complex, in Utah. Open free to the public, to look through. For additional info, google: Slas.us....that stands for Salt Lake Astronomical Society....Please come out and take a look through it! 


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#9 mr70inch

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Posted 14 November 2019 - 11:02 AM

No, but now that you mention it I bet it comes up for sale soon.  

Mike Clements here, telescope builder, I don’t plan on selling it in my lifetime....so you might lose that bet....


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#10 nosmoke

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Posted 14 November 2019 - 11:06 AM

The secondary is flat so doesn't matter what angle it reflects as long as the focuser is pointing at it.

Ah, OK, I assumed it must have been a convex secondary a la cassagrian or similar.  I guess the downside though is that a relatively large secondary would be required and maybe that's why it's not a common configuration (AFAIK).



#11 mr70inch

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Posted 14 November 2019 - 11:06 AM

Anyone have any up-to-date information on the 70"er Mike Clements built a few years ago?  All I can find is quite dated (most recent is 2015) and I was wondering if he is still using it and what kind of imaging it produces. 

 

I understand he was going to tour the country as he apparently built it to be "portable".

Thank you for your interest! Please come out to the Stansbury Park Observatory complex in Utah, and look through it!  For a schedule go to: Slas.us ....that is the Salt Lake City Astronomical Society. Mike Clements, telescope builder.



#12 nosmoke

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Posted 14 November 2019 - 11:21 AM

There is an article on this scope in this month's Amateur Astronomy:

"In this issue, we feature the amazing 70” amateur telescope housed at the Salt Lake City Astronomy Association Stansbury Observatory complex. Robert Reeves details his visit to this remarkable facility and the details and construction of this large telescope."

Tried googling and what comes up is a blurb for Amateur Astronomy Magazine (with mention of the 70 incher) at URL http://amateurastronomy.com/.  Going there however gets redirected to a weiner pill site at https://trust-edshop.com/search.html?key=viagra.  Have they been hacked??



#13 nosmoke

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Posted 14 November 2019 - 11:29 AM

Mike Clements, here, the builder of the 70 inch telescope....The telescope is alive and well at the Stansbury Park Observatory Complex, in Utah. Open free to the public, to look through. For additional info, google: Slas.us....that stands for Salt Lake Astronomical Society....Please come out and take a look through it! 

Hey Mike, thanks for the info.  I would love to take a look but unfortunately I live in Canada and don't have a passport.  Maybe this is a good reason to get one!

 

Went to the site but don't see anything on days/hours of availability though.


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#14 Chuck Hards

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Posted 14 November 2019 - 11:29 AM

Ah, OK, I assumed it must have been a convex secondary a la cassagrian or similar.  I guess the downside though is that a relatively large secondary would be required and maybe that's why it's not a common configuration (AFAIK).

It's called a "low rider" configuration.  JMI marketed Newtonians with this arrangement for a while.  The main reason is to shorten overall OTA length and put the eyepiece at a lower height with large or long scopes.   The larger secondary issue kind of disappears with apertures this huge.


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#15 Pierre Lemay

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Posted 14 November 2019 - 01:32 PM

Ah, OK, I assumed it must have been a convex secondary a la cassagrian or similar.  I guess the downside though is that a relatively large secondary would be required and maybe that's why it's not a common configuration (AFAIK).

If you are interested in purchasing a low rider telescope almost as large as Mike Clement's 70 inch AND you have very deep pockets$$$$, you can get in touch with Normand Fullum. Norm can make a 65 inch with his current equipment. He has successfully made a couple of 50 inch ones for rich amateurs and for professional research observatories.


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#16 nosmoke

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Posted 14 November 2019 - 04:59 PM

If you are interested in purchasing a low rider telescope almost as large as Mike Clement's 70 inch AND you have very deep pockets$$$$, you can get in touch with Normand Fullum. Norm can make a 65 inch with his current equipment. He has successfully made a couple of 50 inch ones for rich amateurs and for professional research observatories.

Nah, it would have to be a 73 inch (or at least 72.1)...  grin.gif


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#17 nosmoke

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Posted 15 November 2019 - 11:10 AM

OK, I'll sell my house and start buying lottery tickets!  wink.gif

 

And, there wouldn't be any usurious foreign exchange fees or import duties!


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#18 tommm

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Posted 16 November 2019 - 12:03 AM

Tried googling and what comes up is a blurb for Amateur Astronomy Magazine (with mention of the 70 incher) at URL http://amateurastronomy.com/.  Going there however gets redirected to a weiner pill site at https://trust-edshop.com/search.html?key=viagra.  Have they been hacked??

Nope this link works fine for me.



#19 nosmoke

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Posted 16 November 2019 - 12:38 AM

Nope this link works fine for me.

Weird, I now am wondering ifhave been hacked.

 

Anyone have any idea what's going on here??  I get the same result in Chrome and IE.



#20 mark cowan

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Posted 16 November 2019 - 12:39 AM

I get BS off that link too...



#21 BGRE

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Posted 16 November 2019 - 01:05 AM

More likely they've been hacked or less likely a DNS has been hacked.

Their facebook page seems OK.



#22 Dave O

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Posted 16 November 2019 - 04:22 AM

That link appears to be working fine for me ... although the page shows as "not secure" ....



#23 PrestonE

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Posted 16 November 2019 - 07:55 AM

That link works fine for me on Chrome...

 

Preston



#24 grzesznypl

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Posted 16 November 2019 - 10:17 AM

Anyone have any up-to-date information on the 70"er Mike Clements built a few years ago?  All I can find is quite dated (most recent is 2015) and I was wondering if he is still using it and what kind of imaging it produces. 

 

I understand he was going to tour the country as he apparently built it to be "portable".

If this build is portable, I am virgin Mary. This is one of the kind telescope and even Clements said in one of his videos that telescope is not practical. 
Just out of curiosity, I am wondering how heavy the entire thing is???  Whats the weight at wheelbarrow handles?? drool5.gif



#25 Steve Dodds

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Posted 16 November 2019 - 11:14 AM

Originally it was supposed to be portable.  But the only time it moved, from my place 30 miles to Stansbury Park took 3 days and he has since sold the trailer, so I think it's stuck there.


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