Dave
It'd be best that you first align your finder scope to the main scope before it gets dark so that when you view thru the finder scope for a "rough" view of the position of the alignment star you'll be able to "center" it in the finder scope and hence it would be pretty close now in the main scope too
I normally use a 12mm reticuled crosshairs EP and that is pretty high mag
HTH
Cheers
Bill
|