CG5ASGT Astro-Tech AT6RC Zhumell 10 inch dob deluxe kit 10x12 observatory Echo Astronomy maker of Custom bahtinov masks and Duncan collimation masks.
Quote:Web site? Price list?
Joe (quote)"That does it! Next Big Bang, someone has got to rethink this gettin' old business!" Joe Daugert -------------------------------------------------- >>>>>>>>>>>> ISTAR Scope Club <<<<<<<<<<<<
"You're not afraid of the dark, are you?" - Riddick "The best scientists are humble. They seek to understand, not to ensure their legacy, but merely to understand." - Mori
Quote:Whenever someone comes out like this, and don't at least provide an estimated price, it's a sign for me to stay clear. I will not under any circumstance be able to afford it and I simply don't even consider it further, even if it is something I would really like to have. Clear skies!Thomas, Denmark
Quote:And what ever happened to the H-Bomb ?
Quote:Valery. I would like some kind of comparison for your prices, not a solid estimate, but a way to gauge how the technogy will impact pricing. For instance, I will hopefully be in the market for a 12 1/2 inch F/20 Dall-Kirkham in the not too distant future. We have a pretty good quality set of optics being made by Royce at 3200.00 with standard coatings. Can you give a ballpark figure on what a similar set from you would cost?
... and still the best wife I could wish for!
Quote:However, your point about what is needed is an important one. Perfect at x size is ideal, but x+25% of very good might be a good alternative.
Quote:Valery, can you give us a price on the RC systems 12.5" F/8, 14,5" F/9?
Quote:Quote:And what ever happened to the H-Bomb ? The first stage - the APO objective ( 203mm F/6,5) with a single DOE has been made more than a year ago and showed us that we really have the technology that allows us to make so small scale diffraction optical element that it delivers 1/20 wave precision. This was a test of our ability to make such optical elements. Unfortunately, an objective with a single DOE is not practically useable in a wide spectral range. To make a truly useful APO objective with DOE, we need to use two DOE in the objective. In this case all unwanted orders of diffraction will be attenuated and the image will be clean.So, we are at this second stage - experimenting with double DOE configuration. You can see how it works (on a simplified level) googling "Canon Diffraction Optics".