Bill R.'s Blog – August 2011 Archive (1)

Well I played around with the guide scope model long enough. The WO Petzval is a nice little scope, but I couldn't get the flexion out of the system (in time). I started playing with using a third guide ring on the focuser and had some success (this will work), but not until I had way too many frustrations.



I searched and searched for a good Off Axis Guider (OAG) and never found a good deal on one, plus I was scratching my head trying to figure out spacing and back focus, ad… Continue