3 links
ATM Optical Design and Analysis Software
atmos-software.it
Freeware, Version 7.4, program for designing and analyzing telescope configurations.
Ronchi for Windows
members.aol.com
Program that simulates the appearance of a mirror while undergoing the Ronchi Test.
StarTrak - Making Setting Circles
StarTrak.co.uk
Software to plot setting circles for altazimuth mounts (eg Dobsonians) and equatorial mounts.