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Sh2-86 (NGC-6820)

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Istar Doublet

Started by 1953, 12/19/2009 10:57PM
Posted 12/19/2009 10:57PM Opening Post
Well I've finished off the tube assembly for the ISTAR 6" F10 doublet. Came out rather nice if I say so myself.

Next up is the optical testing. As part of that procedure, I'll be doing a side-by-side comparison with my old 6" F10 Jaegers. A very preliminary check out with the bare tube a month ago was quite encouraging.

A doublet should be a good test product for a new vendor. They're "easy" to make and if this sample is good, well that's also good news for us ATMers.

I'll submit the report when the weather is suppose to clear...sometime in July I've heard.

Jeff

Attached Image:

1953's attachment for post 49476

"Don't sweat the petty things and don't pet the sweaty things" 8O
Posted 12/19/2009 10:57PM #1
Another view

Attached Image:

1953's attachment for post 134640

"Don't sweat the petty things and don't pet the sweaty things" 8O
Posted 12/20/2009 05:47AM #2
[COLOR="Purple"]Very nice Jeff!

I may have missed it in the earlier posts but what is the final OTA weight?
Bill[/COLOR]
Posted 12/20/2009 07:40AM #3
Sweet 8) Looking forward to your "field tests".

Keith

Scopejunkie


40 year old restored C14 with recirculating cooling w/Skywatcher DOB GOTO Conversion (CPC14)

Synscan DOB mounted Sky-Watcher Evostar 150mm/1200mm ED Refractor

"Rescued" Craig's List Orion 120mm/1000mm Refractor


USAF Vet




 
Posted 12/20/2009 06:19PM #4
Beautiful! Be interesting to hear how it star tests
with a green filter at high power, especially vs Jaegers.
Let us know if/when you start selling them. smile