The required spacing can be achieved by combining several extenders of differing lengths; you can use 1 piece; 2 pieces; 3 pieces or 4 pieces of the extension rings as you like
The extension tube has a T2 interior thread and a T2 exterior thread for elegantly solving spacing problems in astrophotography
Use this extension tube for getting the correct image scale or the exact spacing required for reducers or field flatteners
90-Degree Viewing Angle: Features 90 degree observing design more comfortable viewing orientation as you observe from above;reducing unnecessary postural strain
Quick Installation:Dual installation design with meticulous craftsmanship facilitates safer and more efficient installation of 1.25 inch telescope accessories