A question: I have an AP1200GTO on a fixed concrete pillar in an observatory.  Would this handle the following load: a 300 mm f/4 newton with a weight of approximately 20kg (including camera) and piggy-back a 150mm f/7 triplet refractor, all in all also 20 kg.  Total weight of 40kg is well within specs but I am concerned about the longer arm by putting the heavy refractor piggyback on the newton?!  Side-by-side is no option, also very difficult to balance.

 

Thanks for your thoughts,

 

Geert