Fully metal material; using advanced CNC processing design; the double helical focuser is durable and reduces the weight of carrying it when going out
Precise focus; the SV161 helical focuser allows for precise focusing of eyepieces or cameras; It is ideal in connection with a guide scope and a guide-camera; such as SV165 series mini guide scope
Female T2-thread; while allowing the attachments of 1.25" equipment on the eyepiece or camera side
Orientation; during focusing; the attached accessories keep their orientation and don't rotate; The exact focus position can be fixed with a clamp screw
Interface; the SV161 helical focuser with M42x0.75 male thread for primary mirror