I am wondering if anybody else is having a problem with ProtoStar or if it just me.... I ordered a curved secondary mount and secondary mirror from them on 14...
I bought a 3.1" secondary from Protostar last November and I think I got it in early January - so maybe 8 weeks. But I live in Canada, so shipping and customs...
My experience with ProtoStar is that they generally take a long time to get orders out. It's funny but most people don't seem to realize how small the ATM...
Marc, Yes. My friend Jon Warren ordered months ago and still has not received his order. He went through the sam series of calls as you. He is still waiting. ...
Please , Please remember to trim your posts. Some of the posts have been getting way too long as person after person replys to a question. Also please change...
Make_Your_Own_Telesco...
Oct 20, 2008 4:43 am
10427
I'm looking for a 2.76" secondary [70mm], Newport lists them and Hubble optics on ebay has them at 1/10 wave, does anyone have an informed opinion on these or...
Please , Please remember to trim your posts. Some of the posts have been getting way too long as person after person replys to a question. Also please change...
Make_Your_Own_Telesco...
Nov 3, 2008 4:27 am
10429
I am going on memory here but as I understand it a 32mm is about as low as you can go in power or perhaps true field with a 2 inch eyepeice. can someone...
John, this answer depends upon the effective focal length of the eyepiece, the viewer's pupil diameter, and the telescope diameter and focal length. Also, the...
Assuming no vignetting, barlow or reducer, the max eyepiece focal length can be determined by [f/ratio] times [the max pupil dia one's eyes can accomodate]. So...
I think a couple of points need to be clearly emphasized. First, using an eyepiece that gives a light cone larger than the observer's pupil only means that the...
...of New Perspectives on Newtonian Collimation is now available. Information is available here: http://homepage.mac.com/vicmenard/telescopes/index.html The...
Please , Please remember to trim your posts. Some of the posts have been getting way too long as person after person replys to a question. Also please change...
Make_Your_Own_Telesco...
Nov 17, 2008 2:53 am
10435
I would like to find out if this can be built or is it just out of sight? 1. Could it be made? 2. How large or small would it be? 3. Web cam for viewer? 4....
All telescopes can see that far, if you point it up in the air. You cannot, however see that far on the horizon due to the curvature of the Earth. Jerry in...
I don't understand the "range 300 to 3000 miles" question. Do you wish to make a remote observatory with a telescope that is linked by Internet to a home...
Yes the DOD does have them. They use them to see stuff that's are not that far away and mapping planets that sort of thing. The thing is I would like to have...
Go outside. The DOD has something up there watching you right now. Building one is not all that hard, but the mounting and the siting of it is out of this...
Your plans should include the goals of imaging--smallest detail, color or B&W, overall size, field use or fixed position, expenses. If you are going to image...
What mirror coaters perform at least a cursory inspection of optics when they are received...before they are put in the coating chamber? I'm not asking for the...
Paul Zacharius of Spectrum Coatings says: "You can trust me with your optics. ...the bottom line is - honesty, character and integrity - treating customers...
Will Lohneis of Lohnstar Optics may be able to recommend someone. Will and I worked together at Laser Power Optics, and I designed some equipment for him at...
... Do you speak from experience? Or are you merely parroting what is on the web site? The grand irony is that....it was Paul himself who yesterday told me ...
I, for one can testify to the quality of Paul's work at Spectrum Coating... several of the guys in our astro club use him, and I have had a few mirrors coated...
... Coating... several of the guys in our astro club use him, and I have had a few mirrors coated by him as well. He's been around a long time, and has a very...
You may want to consider OMI at http://www.opticalmechanics.com/ I have friend who just had them recoat the mirror on his Obsession 20 and was very happy with...
I was able to meet the James from OMI at the Okie-Tex Star Party this year. That is where they delivered my friend's 20" mirror. It saved him the return...
Please , Please remember to trim your posts. Some of the posts have been getting way too long as person after person replys to a question. Also please change...
