A "NEW" APPROACH FOR TESTING OPTICAL TRAINS - posted for Samuel de Roa

Posted by Paul Walsh 05/05/2012 07:00AM

Trying to corner a long-term concern in the astro-amateur world through the “slanted edge” method


Comments:

  • astrobart [Ivan Galuzin]
  • 10/13/2019 04:47AM
Hi, the links seem to be expired, could you please upload again?
Bart