DAYSTAR QUARK
 
          Quark mounted on a Skywatcher 120mm F5  with a 
2” UV/IR cut filter.
 
           
          Quark mounted on Astro Tech 66mm F5.
 
           
          Quark mounted on a Meade ETX 60.
I have only been able to checkout the Skywatcher 120mm setup so far . I am very pleased with the Daystar Quark.