... ************** Would you want to relocate? If so, I could inquire at a couple places in this area. Could be other leads around here. Would be nice if I had...
Kinda reminds me of the story of the little 5 year old boy who had never spoken a word in his entire life... his parents had taken him to many specialists,...
Whoa, Kevin- that's some chunks of glass!!! How big is the glass in the big (truss) dob??? ( Heck, and the "little" one, too! :-) ) Wes ... From: kevin...
26.25 inch f4.7Â / amd the other is a 20 f5.25 ... From: Lou & Wes <martay6@...> Subject: Re: [spiderless] ???? To: spiderless@yahoogroups.com Date:...
hi ed are you going to make lens sets to buy for your CHief ? how big a CHief and how fast can you make? if you compaired a off axis mask to a CHief of the...
Kevin, I am offering 2 inch lenses that will work for an 8 or 10 inch f/7 Chief. I can't go larger now with the closing of our plant. <how big a CHief and how...
thanks ed for bringing this telescope/ is it easer to make than a yolo/ ... From: Ed Jones <opticsed@...> Subject: [spiderless] Re: telescope stuff To:...
Ed, Will you be posting pricing for those 8" f7 lenses? And how much tolerance is there on those (owner of an old Coulter 8" 55.7" f.l. primary)? If you have...
Ed, I am interested in a lens set. I am curious to know that the critical parameters are. For instance how far off can you be from f/7? If they work for 8" or...
Kevin, I sell a 2 inch lens set for $450 including the lens tilt holder and a design to match your mirror. These will work on any mirror up to 10 inches....
Roger, The critical parameters are the tilts of the mirror and lenses and the BFL distance. Yes they will work for a 6 inch f/7 and the mirrors are separated...
Ed, Thanks for contributing your article to S&T to share with the telescope making world. As a result of reading your article I've just joined "Spiderless" in...
Hi Randy, Welcome to Spiderless. Yes the Chief and Buchroeder layouts look similar but in fact they are optically different. The Chief requires a parabola and...
... Ed, Thanks and thanks for the comparison and contrast on various design characteristics. Hearing what you are saying it seems that your corrector design...
hi Randy glad you are here /this is what i think is a great thing with atm /the chance to make a type that you canot buy/ i counted over 35 types of...
Randy, These correctors can be used in the Chief, Yolo and schief (or cass form) which ever you like. They do eliminate the need for a toroidal (potato chiped)...
Hi Kevin, I agree whole heartedly about the range of possibilities opened by ATM. For me, a childhood interest in astronomy was rekindled some twenty five...
Thanks again Ed, So if I did need a corrector for a system with unacceptable on axis color and if I were to amend the radius of one of the two elements of a...
Randy, There are a number of ways to make the tooling. If you can find someone to turn one on a CNC lathe that would be the best. the easiest would be to make...
My father in-law was a photography and darkroom nut when he was alive. In cleaning out the house after he passed on I came upon a pair of big plano convex...
Randy, They could very well be Pyrex which was used for condenser lenses a lot although it often had a yellowish or colored cast to it. I don't think I would...
Ed, I was hopeful that there was some other creative use for them but as much fun as I have hacking away at glass and shining it up to make it look pretty, I'd...
I have built a 6" f8 off axis refractor and I would like some advice on how to build a corrective lens combination cell as mentionned in S&T of November 08....
Lalou, Do you mean you have built an off axis reflector? What have you done so far? 2 inch lenses should be fine for a 6 inch scope although f/8 is too fast...
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