Thanks for the reply! Since I posted my question I have decided that I WILL build a scope. Once I started fantasizing about building my own, the thought of...
Since you are looking for suggestions: I suggest the Krieg and Berry book: The Dobsonian Telescope. And you won't find a better price than on the Willman...
Thanks for the suggestion. I will check it out. At one point I had thought I wanted to build a truss scope (and I am assuming that the Krieg and Berry book...
The Krieg and Berry book will lay out all the pros and cons to that decision. So it might be helpful to at least borrow a copy. David ... From: Jim Jefferis...
Thanks Jim. If you have any questions about the work or just need a little advice with the layout, I'll be happy to help. Tony ... From: Jim Jefferis To:...
I too recently decided to build a scope. I have had an 8" for almost 2 years, then bought a 12" solid tube 9 months ago. I decided to built a 16" but got a...
Hi Tim, I'm not going against your experience in the area of optical quality because I don't I don't know what it is. However, speaking as someone who makes ...
Hi Tony, Thanks Tony for the word of caution. I bought the hubble optics sandwich mirror to test this new technology, and for the price, I think its hard to...
Hi Tony, I recently stumbled onto their (Hubble Optics) website and I too found some things quite worrying, the first is their claim to having done FEA...
I'll be curious to hear the results too. If you ever want a real bench test of the glass I'd be happy to do it. I can run up the usual batch of tests along...
That's exactly right Thomas. There's an awful lot that goes into making a sandwich mirror work that involves everything from detailed engineering to...
Thanks Tony for the generous offer. ONce I'm back, and have tested my mirror, I just might contact you and get you to do the tests. I'm in Canada, so shipping...
Yes, I've heard that too....a real mixed bag. My brother in law used to wor for Logitech and would travel to China once a month to do whatever needed to be...
Hi Tony, I have been working on light weight mirror substrates now for about 9 years, and I have to say it might look easy and certain things may seem logical...
Tony, I posted a lot in that thread you referenced, and as you might have read in it, I've got one of those Hubble Optics 12" mirrors in the shop on indefinite...
Tim, I must have read the same thread that Tony Gondola read regarding Hubble Optics on cloudynights.com. with the same impression. There is also another...
... You might wont to try http://www.geocities.com/radicell2 Pretty sure he'll wave a fee to have a look at a real sandwhiched mirror and the new technology....
Mark, Thanks for the details on this. Sad to say it's about what I expected. Hopefully posting the test results will put this issue to rest. I'm not usually on...
Thanks for the notes. Can you specify when this mirror was made (year) and I'm assuming is not a sandwich mirror (not that that makes any difference). I'm...
Hi Tim, It says "06-11-10-125" on the side, which could include a date code, but other than that it's an '07 product. Solid plate about 7/8" thick, and my...
Can someone refer me to information about using fused optical fiber in a telescope? My specific issue is this: Many scopes (such as a Schmidt camera) have a...
in first look to me a fiber optic is soo little THAT no consern about curve field I make soem test whit only cdd and it work whit and ordinary x2.5 glass to ...
... Back in the 70's at Kitt Peak Observatory, I saw bundled fiber optics used to feed focal plane info to Image intensifier tubes. For that purpose, it seemed...
give us more detail about Dimention of 1- focal plan is it ccd type 1\2 inch diagonal or more 2-dimention of scope 8 inch celestron smitch cagrain type...
A couple of years ao on another list someone suggested the following http://www.surplusshed.com/pages/item/l3172.html and to regrind and polish it to the...
Greetings, I started a photo album titled mark's binoscope. If anyone sees a design problem PLEASE let me know. Advice is most welcome/ Respectfully, Mark...
Hi everybody, I'm new to this group so the first few words are for greeting all the members. As you will soon discover, I don't speak english very well. (I'm ...
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