Back to Home

ATM Forum Message

Forums: Atm · Astrophotography · Blackholes · Blackholes2 · CCD · Celestron · Domes · Education
Eyepieces · Meade · Misc. · God and Science · SETI · Software · UFO · XEphem
RSS Button

Home | Discussion Forums | Amateur Telescope Making | Post

Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
Re: Sources/Manufactures Of Refractor Main Objectives?

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Cly/">Cly on January 23, 2000 02:53:45 UTC

: You can really go whole hog and also grind the glass. Newport Glass is on the web and they have kits for doing several different size scopes. Other than that, D&G Optical comes to mind but I don't know if they are on the web (never looked). : Personally, I'd get a Newport Glass kit and have fun with it. The spherical surfaces are a lot easier to do than a parabolic mirror and with 4 surfaces you will spend about as much time as somebody doing a mirror trying to get a good parabola. : The other thing to do is to haunt Astromart and Astronomy Mall looking for the glass.

Also, as of 12/99 Newport is supposed to be offering polished and coated achromatic objectives in cell, f10 - f15 depending on cemented or air spaced, from ~4" - ~8". They have them listed in the online catalog, but no prices. Good luck.

Follow Ups:

    Login to Post
    Additional Information
    About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy
    Unless otherwise specified, web site content Copyright 1994-2024 John Huggins All Rights Reserved
    Forum posts are Copyright their authors as specified in the heading above the post.
    "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET"
    are trademarks of John Huggins