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

AP 6" F12 NASA Triplet Happy ending

This topic has been archived. This means that you cannot reply to this topic.
37 replies to this topic

#1 HARRISON SCOPES

HARRISON SCOPES

    Vendor-Harrison Telescopes

  • *****
  • Vendors
  • topic starter
  • Posts: 589
  • Joined: 05 Nov 2006

Posted 16 January 2014 - 03:39 AM

A year or so ago I was fortunate enough to source an Astro - Physics 6" F12 Super Planetary, number 10 of the first run with the NASA glass, sadly housed in a home made tube and with severe mould damage to the outer lens surfaces.

It actually performed very nicely but I had to try and get this back to its former glory, after enquiring directly with AP initially it seemed it may be too old or too damaged to be an economic repair. Eventually Roland saw a post I made and said I should contact them.

I received a repair number a few days later and shipped the lens next day FEDEX to the USA (FEDEX lost my lens for a nervewracking 24 hours :confused:).

Anyway it did arrive there safely in the expert hands of AP in March 2013, I enquired as to the status on a few occassions but they were understandibly reluctant to update me until it was evaluated. I decided then to just leave it in the lap of the gods and wait....yesterday out of the blue Daleen from AP telephoned me saying "your lens is fixed and we can ship Today"!

Well to say it is the best late Xmas present ever would be an understatement!

It is expected back here in England tomorrow, the repair sheet says - "Re-polished front and rear elements and refigured. Lens tests very good with sharp star image and good color correction."

I can say without reserve that AP have gone the extra mile in not only taking on a vintage lens for repair but one that had been poorly treated too, it just goes to prove just how they stand behind their fine products even decades after manufacture - there was simply nobody else who I would have let near this lens....

#2 R Botero

R Botero

    Vanguard

  • -----
  • Posts: 2,369
  • Joined: 02 Jan 2009

Posted 16 January 2014 - 03:48 AM

Great news! AP product support is the best out there - I was given similar treatment when I acquired my 1991 EDF.
Enjoy it now!
Roberto

#3 Dave M

Dave M

    In Memoriam

  • *****
  • In Memoriam
  • Posts: 8,649
  • Joined: 03 Aug 2004

Posted 16 January 2014 - 10:28 AM

Congrats! And a belated Merry Christmas :grin:
Atrophysics is Top Notch, Glad to hear the great news..

#4 starman876

starman876

    Nihon Seiko

  • *****
  • Vendors
  • Posts: 20,788
  • Joined: 28 Apr 2008

Posted 16 January 2014 - 02:20 PM

AP has made the new year a good one.

#5 Terra Nova

Terra Nova

    ISS

  • *****
  • Posts: 21,582
  • Joined: 29 May 2012

Posted 16 January 2014 - 02:44 PM

Great news! Can't wait to see it in a working telescope. That will be very, very nice.

#6 HARRISON SCOPES

HARRISON SCOPES

    Vendor-Harrison Telescopes

  • *****
  • Vendors
  • topic starter
  • Posts: 589
  • Joined: 05 Nov 2006

Posted 25 January 2014 - 03:32 AM

Finally got a clear night here just west of London, the lens tested wonderfully with a near symetrical diffraction pattern in and out of focus, improved contrast and great detail on Jupiter.

Now to restore the tube / focuser and rings as close to original as possible to do this fine optic justice...

#7 photiost

photiost

    Mercury-Atlas

  • *****
  • Posts: 2,781
  • Joined: 14 Dec 2006

Posted 25 January 2014 - 07:28 AM

Great news !

Do you have any pictures ?

:cool:

#8 mgwhittle

mgwhittle

    Surveyor 1

  • *****
  • Posts: 1,901
  • Joined: 24 Aug 2011

Posted 25 January 2014 - 09:11 AM

Yes! Pictures!

#9 HARRISON SCOPES

HARRISON SCOPES

    Vendor-Harrison Telescopes

  • *****
  • Vendors
  • topic starter
  • Posts: 589
  • Joined: 05 Nov 2006

Posted 12 February 2014 - 05:40 AM

I am hoping to get things complete in the next few weeks - so I can see Jupiter with it!

Focuser from AP is stuck in customs but should clear in the next day or two, Swiss AYO mount due in 3 weeks, rings from parallax due in 3 weeks - then Mark from Moonraker is putting the tube and cells together for me.

Pictures of all the parts to follow then some of the end result.

#10 Joe Cepleur

Joe Cepleur

    Gemini

  • *****
  • Posts: 3,318
  • Joined: 18 Mar 2010

Posted 12 February 2014 - 06:56 AM

Great story! Astro-Physics has such respect for its optics and customers, even customers who never bought from them directly.

Are you restoring the tube to the original homemade model, or are you recreating the Astro-Physics version of the era?

#11 Napersky

Napersky

    Vanguard

  • *****
  • Posts: 2,189
  • Joined: 27 Jan 2010

Posted 14 February 2014 - 08:46 AM

Pictures!

#12 HARRISON SCOPES

HARRISON SCOPES

    Vendor-Harrison Telescopes

  • *****
  • Vendors
  • topic starter
  • Posts: 589
  • Joined: 05 Nov 2006

Posted 17 February 2014 - 02:52 AM

I am trying to get as close to the look of AP scopes of that era, white gloss tube, AP focuser and AP cell, parallax rings and no logos other than the one on the focuser.

For those interested the NASA thing has always been a subjective point, yes it was better than the flints of the time but I finally found a statement by AP from 1981 which cleared things up for me and also pleased me as the history of the glass goes back to the 60's!

"The secret of the high resolution, contrast and high light gathering power is in the use of three carefully selected glasses made by an American manufacturer in the late '60's for the space program. With respect to light transmission, homogeneity, striations and stress birefringence, it is some of the finest glass ever produced in the history of glass making."

By the way - the only other complete run of cemented Christen triplets it seems are the Vernonscope Brandon 94 Apo's = I want one!

#13 starman876

starman876

    Nihon Seiko

  • *****
  • Vendors
  • Posts: 20,788
  • Joined: 28 Apr 2008

Posted 17 February 2014 - 06:18 AM

I heard a rumor that corvette white is a good match for that year ap. Now I do not remember what year.

#14 starman876

starman876

    Nihon Seiko

  • *****
  • Vendors
  • Posts: 20,788
  • Joined: 28 Apr 2008

Posted 17 February 2014 - 06:19 AM

If you go to the ap forum on amart you should be able to get more information

#15 davidmcgo

davidmcgo

    Gemini

  • *****
  • Posts: 3,127
  • Joined: 09 Oct 2004

Posted 17 February 2014 - 11:36 AM

The gloss white early 1990s up until the pebble finish introduction used Corvette White from GM model years 1984-1992, manufacturing code 40 or WA8554.

I got that info from AP when I needed a touch up for the edge of my dew shield on my 1995 130f8 Starfire EDT.

Dave

#16 R Botero

R Botero

    Vanguard

  • -----
  • Posts: 2,369
  • Joined: 02 Jan 2009

Posted 17 February 2014 - 05:12 PM

In Europe, the Astro-Physics white is best matched by paint with reference RAL9010. I had my 152mm Starfire refurbished with that paint by a local firm of enamelers. AP provided the replacement decals for my 18yr old scope!
Roberto

#17 The Ardent

The Ardent

    Aurora

  • *****
  • Moderators
  • Posts: 4,787
  • Joined: 24 Oct 2008

Posted 17 February 2014 - 05:39 PM

I had my 1992 Starfire powdercoated AP white by Joe at Binoscope. Looks like a brand new scope, and surprisingly inexpensive.

#18 HARRISON SCOPES

HARRISON SCOPES

    Vendor-Harrison Telescopes

  • *****
  • Vendors
  • topic starter
  • Posts: 589
  • Joined: 05 Nov 2006

Posted 20 February 2014 - 02:46 AM

I am going for powdercoat, no decals on this model other than the Astro - Physics engraved on the 2.7" focuser (I got the single speed version).

#19 HARRISON SCOPES

HARRISON SCOPES

    Vendor-Harrison Telescopes

  • *****
  • Vendors
  • topic starter
  • Posts: 589
  • Joined: 05 Nov 2006

Posted 02 May 2014 - 05:42 AM

Here is the work in progress, near completion now thanks to Mark at Moonraker Telescopes suffering my OCD....

Attached Thumbnails

  • 6501761-aaaa (4 of 4).jpg


#20 Kunama

Kunama

    Aussie at large

  • *****
  • Posts: 5,279
  • Joined: 22 Oct 2012

Posted 02 May 2014 - 05:55 AM

Looking forward to seeing this one finished Ed. Should be spectacular !!!

#21 HARRISON SCOPES

HARRISON SCOPES

    Vendor-Harrison Telescopes

  • *****
  • Vendors
  • topic starter
  • Posts: 589
  • Joined: 05 Nov 2006

Posted 02 May 2014 - 10:23 AM

All ready for a new coat of white and black.....

Attached Thumbnails

  • 6502115-nat (5 of 9).jpg


#22 HARRISON SCOPES

HARRISON SCOPES

    Vendor-Harrison Telescopes

  • *****
  • Vendors
  • topic starter
  • Posts: 589
  • Joined: 05 Nov 2006

Posted 02 May 2014 - 10:26 AM

Its long!

Attached Thumbnails

  • 6502122-nat (4 of 9).jpg


#23 dweller25

dweller25

    Vanguard

  • -----
  • Posts: 2,030
  • Joined: 30 Aug 2007

Posted 02 May 2014 - 01:35 PM

It's nice!

#24 George Kiger

George Kiger

    Vostok 1

  • -----
  • Posts: 121
  • Joined: 19 May 2006

Posted 02 May 2014 - 04:31 PM

I don't think you mentioned it, so I'll ask - was the lens recoated after polishing?

#25 HARRISON SCOPES

HARRISON SCOPES

    Vendor-Harrison Telescopes

  • *****
  • Vendors
  • topic starter
  • Posts: 589
  • Joined: 05 Nov 2006

Posted 03 May 2014 - 03:01 AM

No it is now uncoated - Roland said it would not be an issue and allow for much less risk, those early mgf2 coatings were ok but some were soft and given there is only two air to glass surfaces it was a happy compromise to have it repolished to todays levels of accuracy.


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