Schmitt-Cassegrain Collimation Made Easy Using a Duncan Mask | Alpha Lyrae

Posted by

 

Schmitt-Cassegrain Collimation Made Easy Using a Duncan Mask | Alpha Lyrae

Very simple method of achieving excellent collimation of a Schmitt-Cassegrain using a home made Duncan Mask.

Source: alpha-lyrae.co.uk/2013/12/31/schmitt-cassegrain-collimation-made-easy-using-a-duncan-mask/

Leave a Reply