|
Hi Damien,
With an RC scope you need to use kid gloves, very very small adjustments go a long way. A newtonian has most of its collimation done on the primary whereas a RC you do most of the collimation on the secondary (I've had my 6"RC for a couple of years now and have not touched the primary yet). These are push pull adjustments tighten one screw loosen the opposite one. I just use a plain visual Cheshire collimator to fine tune the secondary. Hope this helps.
Cheers Rick
|