Thanks for fixing that link gb.
I can just make out the circle of the centre mark. It was a little off compared to the non barlowed laser. The heavy clouds have returned for a while so no further testing until I can see some stars!
Cheers
Quote:
Originally Posted by gb_astro
I don't think that Orion collimator is going to work with a barlow.
The target for the return beam has to be in front of the barlow.
With your one the beam will be going back through the barlow again messing up the mirror centre spot shadow pattern (I think).
https://www.cameraconcepts.com/barlowed%20 laser%20 collimation.pdf
(Looks like you have to copy/past this entire line to get the link to work)
gb. |