- PrimaLuceLab EAGLE4 PRO, Advanced... $2,195.00PrimaLuceLab EAGLE4, Control Unit for... $1,095.00EAGLE3 PRO, advanced control unit for... $1,995.00EAGLE3 Q, control unit for telescopes... $1,125.00EAGLE3 S, control unit for telescopes... $1,495.00EAGLE CORE - control unit for... $325.00100mm PLUS support rings $198.00105mm PLUS support rings $205.00115mm PLUS support rings $215.00125mm PLUS support rings $225.00134mm PLUS support rings $250.00140mm PLUS support rings $265.00145mm PLUS support rings $275.00