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16 INCH F 10.3 SUPER CHIEF

kevin — Sun, 22 Nov 2009 13:06:12 GMT

ED and I are making a 16 f 10 offaxis CHief the telescope will be 8.5 ft and the EYEPIECE IS UNDER 4 FT from the primary .The primary 1 5/8 inch thick pyrex

Re: 16inch f 10.3 chief mirror

Peter De Baan De Baan — Fri, 20 Nov 2009 02:12:50 GMT

To: spiderless@yahoogroups.com From: airfrederick@... Date: Fri, 20 Nov 2009 00:36:24 +0000 Subject: [spiderless] 16inch f 10.3 chief mirror I have a 16

16inch f 10.3 chief mirror

kevin — Fri, 20 Nov 2009 00:37:02 GMT

I have a 16 inch pyrex 1 5/8 thick mirror all polished out . the RC is 330 f 10.3 still have correcting to do. Should make a killer chief !!

Re: Aplanatic Chief

Ed — Thu, 19 Nov 2009 14:41:16 GMT

Yes it is should be 12, I always seem to make a mistake when I enter these by hand. Ed

Re: Aplanatic Chief

marcething — Thu, 19 Nov 2009 08:00:36 GMT

Hi Ed , Thanks for all the efforts , I really apreciate that ! After making already quit a few telescopes , mainly Newtons and a 6 inch Schiefspiegler , and

Re: Aplanatic Chief

Ed Jones — Thu, 19 Nov 2009 04:43:20 GMT

Thanks, good catch, that thickness shouldn't be there. I'll repost it. Ed On Wed, Nov 18, 2009 at 10:13 PM, Richard F.L.R. Snashall

Re: Aplanatic Chief

Richard F.L.R. Snashall — Thu, 19 Nov 2009 03:14:22 GMT

... The thickness on surface 6 (the secondary): Is the system still physically realizable?

Aplanatic Chief

Ed — Wed, 18 Nov 2009 19:00:26 GMT

I uploaded a Zemax file for Marc called "12inchCHieff8bcomafree2.ZMX" a 12 inch f/8 aplanatic Chief design. Ed

big chief

kevin — Sun, 15 Nov 2009 01:33:17 GMT

a friend came over tonight we spent some time lineing up the 20 offaxis chief . worked very good jupiter looked great at 425 power. deepsky is very nice black

16 f 10 super chief

kevin — Sat, 14 Nov 2009 09:25:14 GMT

Grinding a 16 f 10 for EDS offaxis chief. Grinding 320 grit now . Alot of ways to set one up the eyepiece can be from 3ft to 13 ft high .it could be the new

Re: Dick's Chief...!

Ed — Mon, 09 Nov 2009 16:37:26 GMT

I didn't hear him talk about a comparison before and after, he was pretty excited about the design though. He kept telling my old boss "you gotta build one of

Dick's Chief...!

mdhopt53 — Sun, 08 Nov 2009 03:14:18 GMT

Looks really nice! It'd be great if we could hear about a comparison between the formentioned Newt form, and the Chief- could you persuade him? Mark

Re: Coma Free Chief

mdhopt53 — Tue, 03 Nov 2009 14:04:44 GMT

Please don't get me wrong, I'm not saying they can't be done easily, just that it took me a week to figure out the variables to do a 6" F/25 concave mirror!

Re: Coma Free Chief

mdhopt53 — Tue, 03 Nov 2009 12:58:05 GMT

Never said that, I never used the planetary rig. I made flats in batches of 50-100 at a time, with generally 6 spindles going. I averaged one in 15 minutes to

Re: Coma Free Chief

Ed — Mon, 02 Nov 2009 15:30:52 GMT

Maybe your mean doing flats on a large planetary polishing machine then yes you're right, a flat is fairly straight forward. Doing a flat or one of these long