12" Refractor in Making
- Airconvent
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wow matt,MCYM wrote:Hi Swee Sin,
You will have a chance to look thru it. Depending on how it turns out, I am comtemplating to bring it to Penang Astrofest in Jan 05.
Matthew
will it be ready that fast? that's a lot faster than the 16.1" that we have yet to see....sigh....we will settle for the 12" refractor then....heh heh
I'm truly curious though.
At 85mm, that's an awfully short focal length for such a large aperture...
What are the design compromises here? Any chance your friend will send you another one, to make a Bino ?? coupled with your bino viewer..the view would be spectacular to say the least....
rich
The Boldly Go Where No Meade Has Gone Before
Captain, RSS Enterprise NCC1701R
United Federation of the Planets
Captain, RSS Enterprise NCC1701R
United Federation of the Planets
Hi Rich
Can can. Unlike the 16.1" where critical components were missing. This project is likely to be completed by New Year, but it will not look remotely like a refractor.
The focal lenght is 42" (1.067m) thereabout. Still CA would be still be present. At low power it should be tolerable, I hope!
Matthew
Can can. Unlike the 16.1" where critical components were missing. This project is likely to be completed by New Year, but it will not look remotely like a refractor.
The focal lenght is 42" (1.067m) thereabout. Still CA would be still be present. At low power it should be tolerable, I hope!
Matthew
Hi Friends
The 12" refractor testbed almost completed. Here is a couple of pics for the 90% completed OTA. It has underwent the first terrestrial light. CA is present of course but the brightness of the object far outweighs the aberration. It was recently that i discovered it is an F3.0 at infinity (about 900m FL).
http://pachome1.pacific.net.sg/~audiowo ... embled.jpg
http://pachome1.pacific.net.sg/~audiowo ... pright.jpg
This tube will be ready for public viewing once the detailing works has been iron out.
and finally, a Merry Xmas to everyone.
Matthew
The 12" refractor testbed almost completed. Here is a couple of pics for the 90% completed OTA. It has underwent the first terrestrial light. CA is present of course but the brightness of the object far outweighs the aberration. It was recently that i discovered it is an F3.0 at infinity (about 900m FL).
http://pachome1.pacific.net.sg/~audiowo ... embled.jpg
http://pachome1.pacific.net.sg/~audiowo ... pright.jpg
This tube will be ready for public viewing once the detailing works has been iron out.
and finally, a Merry Xmas to everyone.
Matthew