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AN unusual AP scope

Started by RobertHowe, 11/11/2013 08:04PM
Posted 11/11/2013 08:04PM | Edited 11/12/2013 03:00AM Opening Post
Who can tell me about the telescope I bought last night from an upstate eastern New York geologist? It's an AP 152 f/7.5. It has a 4 inch focuser and is built like a tank, in fine condition, with a dedicated field flattener. It can be set up with or without this. The only useful google hit I get is for Tom Back's article on AP lenses which describes it thus: "Roland then set out to make the ultimate astrograph. It was the first "EDF." It used the StarFire design, but with FPL-51 with an airspace. With a 4-inch field corrector and focuser, it took some of the most impressive widefield astrophotos ever taken. The 152mm f/7.5 EDF ($6400) was the first apochromatic telescope that I had ever seen that was completely color free -- even out of focus."

Why have I not encountered one of these before? And Mr C, can I get a new dust cap for it? The one it has fits the dewshield but not the objective.

Cheers

RH

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Robert Howe
Wilbraham MA


TeleVue 85 f/7 // Astro-Physics Traveler 105 f/6 // Astro-Physics 130 f/8.35 // Tak Mewlon 210 //
Coronado 60 DS
"Scopes, Brains and Wisdom--but no Beauty"
Posted 11/12/2013 04:11PM #1
I found it in an AP catalog with a price sheet dated 9/5/90. The entire scan is too large to post, but here are the "Technical Specifications."

Clear skies, Alan

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