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
Older Coulter Mirror

Forum List | Follow Ups | Post Message | Back to Thread Topics
Posted by Colin Kaminski on November 7, 2001 16:48:57 UTC

I purchased a 10.1" f 4.5 Coulter Mirror about 10 years ago. It has a small circle in the middle to aid in collimation. I was given instructions on how to remove it but I have misplaced them.

I am using the mirror on an optics bench and need to remove the circle. Does anyone remember the method for removing the circle? I would rather not recoat the mirror.

What solvents will not damage the coating? I have tried distilled water.

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 1994-2019 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