Has anyone ever heard of Woden Optics (owner Cary Chleborad) - www.wodenoptics.com? How about the quality of their Newton mirrors (attractively priced - 24"...
Hello everyone, I've determined that the optimum rack-in height of my focuser should be 2.5 inches. I have found a nice 2 inch focuser that satisfies this...
Jeeze John if the job was that awful send it to Clausing for inexpensive Beral coating and strip off whatever was put on. The instrument will be better off...
I am sure it was not intentional Greg but the way the included message was snipped I believe it gave an erroneous message about Spectrum! They were not the...
I'll second that. I've used many mirrors coated by Spectrum and they have all been top notch quality. Michelle Stone ATM Components and Custom Telescopes by...
Oh, for sure Spectrum is terrific, and I'm sorry my post got cropped wrong, since I was the one who put Spectrum up as a good outfit right at the beginning of...
I recently made a 1 3/4" kydex focuser baffle that attaches to the inside of my UTA with velcro, and fits between the focuser mounting screws of my DX-1...
I finally took the f/10 4.25" (108mm) Newt out and looked for the "sweet spot." In the 82 afov 20mm widescan (54x), coma effects prevented splitting Polaris...
... of my UTA with velcro, and fits ... from a book. Then I did a google ... stop of my longest focal length ... 1/2" hole saw and cut the hole, ... the...
Which are the average lifetimes of the various coatings available for primaries, assuming a rather mild sea climate, about 50 observations a year and taking...
I don't really have the answers to your questions, hopefully someone on the board will. However, I laughed for five minutes at the "50 observations/year"...
Thanks Nils, Excellent suggestion for the cardboard prototype. I'm going to start on it right away. This is exactly the information I was looking for. Thanks...
Richard, It will depend on several variables, your amount of viewing will be the least offensive to it (IF taken care of)... 1) the quality of the coatings 2)...
Finally, took the new 10" out for the first light. Absolutely beautiful. Only saw about four DSOs, plus some double stars... then the moon came out and that...
I grew up being told to get the mirror redone every five years. But many experienced people on this group go with 10. A member recently posted that when he...
I'm thinking about upgrading from a JMI DX3 to a Starlight Feathertouch. There are lots of options and confusion info. I have a flat focuser board on the...
I swapped a JMI DX1 for a FT. The mounting holes were the same, 2.75". The draw tube hole had to be enlarged slightly but the instructions were clear and all...
I'm in the market for a dec engraved setting circle outer diameter 4.5" to 5.5" inner bore not too critical. Any of you ol'timers with something unused in the...
Phil: I also upgraded from a DX-1 to the FT. Not much work just like the other post. From the DX-1 to the FT was a big upgrade. You have the the DX-3....
Kyle, Nils Olaf is right about the scale model, but if you're working in cardboard, why not just see for yourself? Vignetting through the eyepiece is very...
Kevin, Don't worry about out-focus travel. Set up your scope so you never quite run out of in-focus, and then get a 2" extension for those few eyepieces that...
Greg, I asked Mr. Ed (Crazy Ed's Optical) here in Arizona if he had any and he said no. They may be pretty hard to come by. He suggested Losmandy or UO. Also...
... The narrow band filters are definitely worth it! Broad band filters, as you noted, are rather worthless. For an excellent discussion of how four...
... If metal isn't an /absolute/ requirement, the OP might hit up a friend proficient with AutoCAD, CorelDRAW, etc. who could turn out a set pretty quickly...
Well thank you for making the inquiry. I'm sure something will turn up. But I have to confess it was easier to find a 1977 vintage optical cratsman mirror...
Interesting idea. A laminate might work but I haven't a clue how to make all this happen. I don't "do" laminates. regards Greg N ... . ... cylindrical ... ...
... Any school supply shop (most likely) has a laminating machine. The most common ones can handle large sheets of paper, but the plastic is pretty thin....
Don Rothman/Teletrade has the following listed in his mounts section: RIGHT ACENSION HOUR CIRCLE FROM SMALL C-5 BASE,OR C-90 DRIVE BASE----$30 RIGHT ACENSION...
Greetings (and please forgive the cross-postings!), I love my TV-85. It gives excellent wide-field and planetary views. I am satisfied with its color...
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