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
Login

Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
Re: Camera Lens For Eyepiece?

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Robert May on November 19, 1999 18:49:42 UTC

There's two basic ways that lenses of any real quality are held in an assembly - rings that require a spanning wrench and rings hidden behind covers that unscrew after removal of setscrews. Supercheap lenses may be pressfit into place, usually on plastic supports and the only way on those is to cut the support without damaging the lens. I might remind you to measure exactly what the distances from one lens to another is because the prescription is quite exact in order to get the right abberation corrections. Measuring to .0001 is usually good enough to start with.

Follow Ups:

    Login to Post
    Additional Information
    Google
     
    Web www.astronomy.net
    DayNightLine
    About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy
    Unless otherwise specified, web site content Copyright 1994-2021 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