Hey Jason, The price estimate I gave Preston is for a plug-and-play finished 2-element airspaced field corrector, null-tested for quality assurance, multi-layer broadband antireflection coated on all four surfaces, and mounted in a cell. That price could range anywhere from $2K to $4K or more, and will need to be sent out for quoting.
You and Preston both have wonderful machining equipment, and that price could come down by half. All either of you would need are the finished elements.
Post or PM me with all the mirror parameters. My files are all set up to do a design very quickly from those parameters. Let's see how good we can get the performance.
Mike
-------------------- 56 mirrors, lenses, 16" f/6 Newt, 6" f/10 refractor, TOA-130S, Tinsley 5" f/15 Mak, 6" f/4 RFT, Coronado PST. Still to build: 24" f/10 Modified Dall-Kirkham, 10" f/26 Mak, 8" f/12 apo, spectrohelioscope, Herrig, Schupmann, and a new design you'll like.
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Re: My thread for building a 12.5" RC.
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