Hi folks,
I recently picked up a Starmaster 20" f3.7 and was hoping to get some advice re collimation and cooling:
Collimation: I have a 1.25" sighttube/chesire, a 1.25" non-barlowed laser and a 2" auto-collimator and use them in that order. I've read many how-to docs on the internet but have little practical experience using them. If there is an experienced hand that wouldn't mind spending 10 minutes or so with me at the next starparty to validate my technique, I'd greatly appreciate it. Collimation seems quite critical at this f ratio.
Cooling: Any idea what size fan I need attach to my tailgate to cool a mirror of this size?
Thanks,
Tony.
