Quote:
Originally Posted by doppler
When you use the defocus method to check collimation you need to use a high magnification eyepiece on a bright star to see the "airy discs" properly(I use a 6mm on my 8" f6 newt to check collimation)
Rick
|
thanks Rick, ill try it next smoke with a 6mm and see what happens (scope is out). those attempts were with longer length eps.
matt