Thread: Making a Busack-Riccardi-Honders Astrograph
View Single Post
  #27  
Old 09-12-2016, 10:49 AM
Stefan Buda
Registered User

Stefan Buda is offline 		 
Join Date: Jul 2013
Location: Melbourne, VIC
Posts: 844
Well if you think that is a lot of glass then don't forget: That is only half the story. The same number of discs are needed for making the two small lenses.
Attached Thumbnails
Click for full-size image (2inchlens1.JPG)
110.0 KB98 views
Click for full-size image (2inchlens2.JPG)
141.7 KB100 views
Click for full-size image (2inchLensesAndTools.JPG)
118.7 KB88 views
Reply With Quote