Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

First light with the prototype Astro-Tech AT152EDT

  • Please log in to reply
293 replies to this topic

#276 dagadget

dagadget

    Viking 1

  • *****
  • Posts: 896
  • Joined: 16 Jun 2016
  • Loc: Avon Park, Florida

Posted 01 November 2018 - 04:18 PM

Congrats! That's a great looking combo. Hopefully you can get it out soon. 

Looking forward to doing just that in the next week or so clouds willing.



#277 aa6ww

aa6ww

    Mercury-Atlas

  • *****
  • Posts: 2,601
  • Joined: 23 Oct 2011
  • Loc: Sacramento, Calif.

Posted 01 November 2018 - 06:30 PM

Congratulations on the new scope. Its a new moon weekend so there will be lots of new 6" refractors set  up in dark open skies this weekend. Mine will definitely be!

 

I've rounded up my astronomy friends and we are going to make a weekend of it while the weather is still cooperating here in California!

 

...Ralph



#278 dagadget

dagadget

    Viking 1

  • *****
  • Posts: 896
  • Joined: 16 Jun 2016
  • Loc: Avon Park, Florida

Posted 08 November 2018 - 08:23 PM

We had an FPL53 150mm f/7 triplet. Absolutely zero people cared.

I think a 152 triplet at $4k with a Lanthanum and Fk61 would be a pretty big deal. I know a few companies that advertise 5” with a low dispersion ED Element and Lanthanum for a few hundred less than our 6”.

What happened to these FPL53 150mm F/7 Triplets? Are there any more of them hanging around? I suspect that tomorrow night when I first light the AT 152 with the  FK61 and Lanthanum the scope is going to blow me away after having an AT 130.......


Edited by dagadget, 08 November 2018 - 08:23 PM.


#279 dagadget

dagadget

    Viking 1

  • *****
  • Posts: 896
  • Joined: 16 Jun 2016
  • Loc: Avon Park, Florida

Posted 11 November 2018 - 02:42 PM

Last night saw the first light on my AT 152EDT Phil is 100% right on with this scope and the 152 really impressed me so I started a thread on my first light. The scope really is a treat.

 

Thank you Phil smile.gif


Edited by dagadget, 11 November 2018 - 02:42 PM.

  • Phil Cowell likes this

#280 CHASLX200

CHASLX200

    ISS

  • *****
  • Posts: 20,363
  • Joined: 29 Sep 2007
  • Loc: Tampa area Florida

Posted 11 November 2018 - 04:01 PM

I think it is time we see someone do a cheaper 7" ED at F/9.  Meade sure failed but that was 20 years ago and things have changed. Say a price of around $4.5k to 5.5K.


  • dagadget likes this

#281 junomike

junomike

    Hubble

  • *****
  • Moderators
  • Posts: 19,572
  • Joined: 07 Sep 2009
  • Loc: Ontario

Posted 11 November 2018 - 04:37 PM

I think it is time we see someone do a cheaper 7" ED at F/9.  Meade sure failed but that was 20 years ago and things have changed. Say a price of around $4.5k to 5.5K.

Never gonna happen IMO as there's not enough of a market and  the small percentage of people who do want one, end up fixing the older Meade 178ED.



#282 CHASLX200

CHASLX200

    ISS

  • *****
  • Posts: 20,363
  • Joined: 29 Sep 2007
  • Loc: Tampa area Florida

Posted 11 November 2018 - 04:48 PM

Never gonna happen IMO as there's not enough of a market and  the small percentage of people who do want one, end up fixing the older Meade 178ED.

I would never touch one unless i could test it first and it had the cell fix.



#283 starman876

starman876

    Nihon Seiko

  • *****
  • Vendors
  • Posts: 22,236
  • Joined: 28 Apr 2008
  • Loc: VA

Posted 11 November 2018 - 05:46 PM

Never gonna happen IMO as there's not enough of a market and  the small percentage of people who do want one, end up fixing the older Meade 178ED.

I fully agree with you. would be foolish to think otherwise.



#284 starman876

starman876

    Nihon Seiko

  • *****
  • Vendors
  • Posts: 22,236
  • Joined: 28 Apr 2008
  • Loc: VA

Posted 11 November 2018 - 05:46 PM

Never gonna happen IMO as there's not enough of a market and  the small percentage of people who do want one, end up fixing the older Meade 178ED.

My 178ED came with the cell fix and gave awesome views right out of the box.   Cannot ask for more.  


  • Jon_Doh and dagadget like this

#285 Carl N

Carl N

    Surveyor 1

  • *****
  • Posts: 1,701
  • Joined: 18 Mar 2012
  • Loc: San Diego, CA

Posted 12 November 2018 - 11:06 AM

Does anyone know if you can put a Starlight motorized focus system on this focuser? Will an HSM 3 fit on?

#286 Mel M

Mel M

    Ranger 4

  • *****
  • Posts: 320
  • Joined: 04 May 2008
  • Loc: southern Oregon

Posted 15 November 2018 - 01:29 AM

Never gonna happen IMO as there's not enough of a market and  the small percentage of people who do want one, end up fixing the older Meade 178ED.

It would be great to see some 180ED f/9 scopes for $8,999. Visual only. If ca was difficult to find and the quality was like the 152 they would get some notice. Or they could lose some money.



#287 Freakshow

Freakshow

    Vostok 1

  • *****
  • Posts: 142
  • Joined: 23 Mar 2013

Posted 12 February 2020 - 03:51 PM

God bless @AstroTech for making beautiful scopes for a minuscule community who seems to have forgotten we do this for fun.  Thank you for taking a financial risk by bringing new equipment to market. Sure a TEC 140 would be swell, but I can get the AT152EDT and a AT92 and a WO Star71mkII for the same price.  

 

--off my soapbox

 

Any know what the image circle is with the dedicated 0.72 flattener/reducer?  It is missing from the AT webpage. 


  • Brollen likes this

#288 Carl N

Carl N

    Surveyor 1

  • *****
  • Posts: 1,701
  • Joined: 18 Mar 2012
  • Loc: San Diego, CA

Posted 12 February 2020 - 04:31 PM

God bless @AstroTech for making beautiful scopes for a minuscule community who seems to have forgotten we do this for fun. Thank you for taking a financial risk by bringing new equipment to market. Sure a TEC 140 would be swell, but I can get the AT152EDT and a AT92 and a WO Star71mkII for the same price.

--off my soapbox

Any know what the image circle is with the dedicated 0.72 flattener/reducer? It is missing from the AT webpage.


Sorry, I use the Riccardi FR/FF. At .75x for the 63mm version the IC is 40mm and for the large 82mm version it is 50mm.

#289 Freakshow

Freakshow

    Vostok 1

  • *****
  • Posts: 142
  • Joined: 23 Mar 2013

Posted 12 February 2020 - 10:17 PM

I called AT today.  An engineer "thinks" it is 42mm, but was not 100% sure.



#290 Astronomics

Astronomics

    Vendor: Astronomics

  • *****
  • Administrators
  • Posts: 6,634
  • Joined: 07 Jun 2004
  • Loc: Right Here

Posted 12 February 2020 - 10:59 PM

I called AT today.  An engineer "thinks" it is 42mm, but was not 100% sure.

To the best of our knowledge the image circle sits at 45mm.  I can only assume Ken was referring to it covering a 42mm industry standard image circle. 



#291 Freakshow

Freakshow

    Vostok 1

  • *****
  • Posts: 142
  • Joined: 23 Mar 2013

Posted 13 February 2020 - 10:05 AM

Thank you for the clarification.  Are you planning on putting this in the specification part of your website?  You guys are doing a great job.  Thank you for investing your research dollars into this scope specific reducer.  I hope you sell a lot of them. 



#292 Carl N

Carl N

    Surveyor 1

  • *****
  • Posts: 1,701
  • Joined: 18 Mar 2012
  • Loc: San Diego, CA

Posted 15 February 2020 - 10:05 AM

My problem with their flattener is the camera side is at M48, no option to stay at M54, M63, M68, all available on the focuser, but once you put the FF on it you're forced to M48. Rather than $60 or more on adapters that wont regain my FF wide opening???

#293 Freakshow

Freakshow

    Vostok 1

  • *****
  • Posts: 142
  • Joined: 23 Mar 2013

Posted 18 February 2020 - 02:55 PM

Doesn't M48 cover a full frame sensor?



#294 Carl N

Carl N

    Surveyor 1

  • *****
  • Posts: 1,701
  • Joined: 18 Mar 2012
  • Loc: San Diego, CA

Posted 21 February 2020 - 02:37 PM

Doesn't M48 cover a full frame sensor?

It may correct a full frame, but light fall off is better the wider you can get. My Nikon Z6 has a 52mm opening, much larger than standard Nikon F Mount. I have the extensions and connections to the scope all at M68 to keep a wide open throat. If I add in their flattener after the focuser I am constricting the opening from M63 to M48, then back up to M68 to attach my camera.
The small Riccardi is M63 thread, and the large is M82.


CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics